Announcement

**SriramEfunds** · 09-30-2014, 12:19 AM

Re: My Rx100 restoration

Originally posted by kusmaker

That's the only reason man i try to learn every aspect of the problem, i was not satisfied by the answer of my previous mechanic, and now i don't find the answer of this new mechanic appropriate, who is also saying the same thing, infact last time i had an little argument with him to an extent where he said to me that he hasn't got medicine for my misconceptions.

Yeah a little big piston will drink more fuel but then it will be more fun to ride also, and iam ready to sacrifice a little mileage if iam getting a little bit more pulling power.

Trust me, getting associated with forums and talking to experts and their experiences will widen ones understanding.

Originally posted by The Celebrity View Post

Guess my riding style is giving my RX some more years then before a rebuild.

Try getting replacement parts so down the time, you are saved some trouble.

**Balgi** · 09-30-2014, 03:00 AM

Re: My Rx100 restoration

Originally posted by rajkumark View Post

Sorry for hijacking this thread....

I have 1995 Yamaha Rx 100 and looking for someone who can do decent paint job at nominal cost. Could someone help me in this? I stay near to Indira Nagar / Bangalore.

Why don't you post a thread of your own. might even be the makings of a good paint job thread or perhaps it can be expanded as a vehicle related services thread where people can give the details of their shops and sources so others may avail their services.

----consecutive posts auto-merged-----

Originally posted by kusmaker

You have caught the problem quite closely man, yes when the bike idles one can hear the sound and when the clutch is depressed the sound reduces or you can feel changes, i am listening this sound from quite a while, when i changed the piston to 2nd O/S last time this sound was coming then also and even after the whole of the engine rebuild the sound didn't dissappear and now this new mechanic which i have got, who is an ex employee of Yamaha is saying that this is the normal sound of the engine, infact i listened the sound of an new engine of an Rx-100 which he recently overhauled and even that engine was also having the same sound. Infact some years back my previous mechanic changed the rubber bushes which are between the clutch basket and the gear assembly,What i will do is that i will try to load the video of my bike engine for you guys and then you can have more clear view.

yeah I think if you upload the video it will help us diagnose the problem but please make sure you click the video someplace quiet so we can get the engine sound only and not background noise.

My old mechanic was also an ex Yamaha employee who opened his own shop. he also wanted an Rx of his own and bought one some time back in good condition. now its lying in a scrap heap at the back of his shop. now not all ex Yamaha mechanics are bad but most of them are, at least when it comes to the RX bikes. this is attributed to the fact that these guys are trained only to disassemble then replace and then reassemble. they may start off as great creative mechanics but end up as mindless trained monkeys later. try to find out not who is the best mechanic but who is in the business the longest and that's your guy.

my old mech told me to ignore the noise of the loose primary gear nut on the crank........... the CRANK!!!. that is how these Yamaha mechanics are. "you've got play in the conrod its okay its just Rx100 sound, you've got loose bolts and oil leaks. its an old machine" that's their attitude towards these bikes because they are lazy and have no proper knowledge to have the guts to experiment or study a problem. best solution do it yourself.

**avhad sitaram** · 09-30-2014, 09:36 AM

Re: My Rx100 restoration

Originally posted by kusmaker

Very true, the only experts i have found are from this forum, else till now i haven't found any expert who knows inside and outside of this machine.

----consecutive posts auto-merged-----

Yeah bro that's one key point you have mentioned, i will try to take a video in some isolated place, and you are true on the point that most of the ex yamaha employee are just assemblers, even my mechanic was also an wheel assembler in Yamaha in late 80s, and then he somehow got himself shifted to R&D department, after that he left the company and started his own shop.

My God ignoring the noise of loose primary gear of the crank, all of these mechanics speaks same language whatever the noise engine emits they says its' crank noise and engine needs to be redone, to do it by yourself one should have all the tools and thorough knowledge of the problem, i have never opened the engine by myself so will be needing help of you guys.

very true said buddy

just right tools and one time learning will be sufficiant to kill the mighty monster of mechanic skills .

**Balgi** · 09-30-2014, 12:29 PM

Re: My Rx100 restoration

Originally posted by kusmaker

Very true, the only experts i have found are from this forum, else till now i haven't found any expert who knows inside and outside of this machine.

----consecutive posts auto-merged-----

Yeah bro that's one key point you have mentioned, i will try to take a video in some isolated place, and you are true on the point that most of the ex yamaha employee are just assemblers, even my mechanic was also an wheel assembler in Yamaha in late 80s, and then he somehow got himself shifted to R&D department, after that he left the company and started his own shop.

My God ignoring the noise of loose primary gear of the crank, all of these mechanics speaks same language whatever the noise engine emits they says its' crank noise and engine needs to be redone, to do it by yourself one should have all the tools and thorough knowledge of the problem, i have never opened the engine by myself so will be needing help of you guys.

Sure man. The key to a good engine rebuild is the philosophy "waste not what you can save".
1)Get a few boxes and cans and mark each component you take out accordingly.
2)A method I used to use was clicking a pic of the removal of any major component and video filming the whole process. In this way if you miss something you can use video and pics as reference.
3)Also first self diagnose any and all problems that need to be addressed on your bike by riding and feeling the bike.
4)Then observe the bike carefully on all sides, this reveals most of the stuff cosmetic stuff.
5)Finally don't start a build till you have all necessary parts. A few extra parts won't hurt.

A piece of advice bro. If your gonna do it yourself try as far as possible not to modify anything. My first build was a bajaj sunny. When I got done I couldn't open the petrol cock because I tried to reuse the carb packing and bike would not accelerate because I up-jetted carelessly. So watch out.

**Balgi** · 09-30-2014, 08:24 PM

Re: My Rx100 restoration

Originally posted by kusmaker

No man idon't like modifying i love the vehicle as it was produced originally, iam linking the video which i shot today, it's my first video and recorded by my normal mobile so hope you will bear any fault.

The bike is making the noise from the con-rod not the clutch. did you have the crank replaced? if not how many kilometers have you run it in total? also first chance you get open the clutch side and check the tightness of the bolt on the clutch inner. its the one that holds the clutch bell and inner together. you will have to remove the clutch plates to get to it. also just check if there is any play in the clutch primary gear and the clutch bell. if so replace at the earliest as this will cause the bike to jump a bit when re-clutching. check these and let me know. and contrary to what the mechanic says the crank noise should not be audible when the engine is running. it is audible only if there is sideways play in the con-rod (connecting rod). my bike made the same noise when I got 1st OS a year ago and refurbished the crank.

Try to get the sound of the engine on a good quality camera. anything above 8 mega pixels will do. phone cams create background noises which reduce audible sound. the hissing noise.

**Balgi** · 10-01-2014, 02:05 AM

Re: My Rx100 restoration

Originally posted by kusmaker

No man i have never replaced crank though i got it repaired when i changed the piston last time, i don't remember exactly but on the current 2nd O/S piston i might have run 35000kms, alright i will open the clutch side and do i need an clutch holding tool to tighten the bolt if it is loosed, what is the no of spanner which should be used to tighten the bolt, this con rod noise is the main thing which is audible from quite a long time, and you are right on the mechanics advice, even last time when i rebored the engine and repaired the crank, still this slapping kind of noise was present.

I don't have an high quality phone or camera so i will try to borrow it from my friend and then i will PM you the latest video, and thank's bro for advising, i have almost hijacked your thread for my problems, how far has your rebuild gone any latest news.

Hey bro anytime.

you say you got the crank repaired. what exactly was done? was the con-rod replaced or any lathe machine cutting done? Ideally when the bikes crank is taken for repair the existing con-rod has play. so a con-rod of a slightly thicker bottom end is used so it fits snug in the crank. typically these con-rods are called 1st OS and 2nd OS con-rods just like the pistons. but some mechanics to save money just buy the con-rod of standard measurement and add some metal O-rings to reduce clearance on the connecting's corners thus temporarily reducing the play. I learnt this by being around mechanic shops a lot over the last 16 years. no mechanic will tell you this but its common practice on two strokes. when the rings start to wear thin the sound starts to amplify so next visit they cut your muffler in the tail pipe to make the bike noisier. I think you should get the crank to a proper workshop and have the con-rod replaced yourself and also select the size of it yourself. there should not be any play at all or else mission failed.

yes you need a tool to hold the clutch so you can get the plate off it and remove the clutch plates. I normally don't recommend this to anyone but you can try to jam it with a spanner strategically placed to prevent the bell from moving also try putting the bike in gear to do it. also 35000 kms will wear out the crank. did the noise exist from day one?

sure bro no need to rush. try the clutch fix if it doesn't work then upload another video. and I wouldn't call someone asking for advice as hijacking of the thread so no worries.

**Balgi** · 10-01-2014, 04:19 PM

Re: My Rx100 restoration

Originally posted by kusmaker

I can't mention what was done to repair the connecting rod last time as i was not present at that time i was in a hurry and the mechainc was trustful(though he wasn't and i shouldn't have left the crank with him),later i asked him how he repaired the crank, obviously he said that the con rod was changed, which i think he didn't,and he repaired the crank the way you have mentioned.

What's the life difference of repaired crank with new connecting rod and OE crank, and yeah the noise is from day one, so i believe mission got failed from day one and increasing of this sound was inevitable, my muffler is intact, and have never been cut, though changed once, so i will check out the clutch first and then proceed further.

Thanks....

The life of a repaired crank can be anywhere between 6 months to 6 years depending on who does the repair and how. I think the other forum members will agree. As far as the muffler is concerned, it need not be cut it is also common practise to replace it with one from an Rx135 muffler to produce a louder bassier exhaust note. And its a direct fit and more readily available. One cannot tell the diffrence with the naked eye. So check that first.

And don't open the engine on your own. But ask to watch as it is done unless you feel you have the tools, the time, and the knowledge necessary. Don't forget to buy packing material and necessary gaskets, o-rings. And best to rebuild than to fiddle with minor problems (can check the crank and cylinder too). If you're doing this get a new cylinder kit as you said yours is 2nd OS. Just my thoughts as you said you want it stock and since parts are still available.

**Balgi** · 10-01-2014, 06:02 PM

Re: My Rx100 restoration

Originally posted by kusmaker

I can quite confidently say that the muffler is not cut, as 9 out of 10 times i have myself decarbonised the whole exhaust, and even the 10th time, silencer was cleaned in front of me so iam pretty sure that the muffler is of complete size, still i will post a snap for your expert view.

Yeah man i will not experiment on my own with engine opening, this time i will sit by the side of mechanic and will try to see which part goes where, and you are right on tools part also as iam not having all the necessary special tools for opening and closing the engine, new cylinder is easily available the only hurting point is the rocketing price of 9000/-rs, with crank adding another 3800/-, whole of the engine rebuild will cost me some 18000/-rs, and recently when my Dad came to know the rebuild price he advised to me that there is no need to spend such an huge amount on 20 yrs old motorcycle, instead buy passion or any new bike, plus i will try to search for some good mechanic, as my current mechanic is quite greedy, though he is an trained mechanic and good also, but with it he also sells parts of yamaha bikes,he charges print price for every part, and as he is a parts seller also he dosen't entertain any customer who brings his own parts, even if the parts are original, so that's another part i have to look into, but whatever happens i will keep informing you brother.

I know how Dads can be man but they don't always understand our passio for these bikes. What they see is how well the money is utilized is all. You don't needto get a new crank unless your old one is irreparable and in dire states. The con-rod costs 250rupees. I only advised a new cylinder kit as your old one you said is 2nd OS. And your mechanic if he sells spares, he will certainly overcharge you. And as I said earlier waste not what you can save. Try to make your build cost effective. If all else but the crank is fine retain it.

As far as mechanics are concerened, ithink there is a thread about mechanics from diffrent cities. And if not you can start a thread about it.

**avhad sitaram** · 10-01-2014, 06:42 PM

Re: My Rx100 restoration

Originally posted by Balgi View Post

I know how Dads can be man but they don't always understand our passio for these bikes. What they see is how well the money is utilized is all. You don't needto get a new crank unless your old one is irreparable and in dire states. The con-rod costs 250rupees. I only advised a new cylinder kit as your old one you said is 2nd OS. And your mechanic if he sells spares, he will certainly overcharge you. And as I said earlier waste not what you can save. Try to make your build cost effective. If all else but the crank is fine retain it.

As far as mechanics are concerened, ithink there is a thread about mechanics from diffrent cities. And if not you can start a thread about it.

[MENTION=72198]Balgi[/MENTION] whatever our parents said is true ...i realy favours that.
but live a life like a way to give importance and justice to every aspect.
imo [MENTION=49419]kusmaker[/MENTION] in india we are the people who love equaly to living things and non living things. Bikes are like our childs and i think our bike can understand our emotions and feelings and hence the strong bond betn us exist.

if you thought wasting a twenty thousand bucks on a twenty year old bike is not good then try to sell it ....!!! But you cant coz you know the reason very well than me.

l am also a budget conscious person and thinks just like your dad but my soul thinks exactly opposite.
lot of duels still exists in my mind about what to do or not to do.

hence i have decided to invest a lil bit money every month for the sake of my love and in a one and half year i will get a factory roll out bike.

i am realy sry to you buddies to bug you but wt can i do , i had a talk with kusmaker and realy nice moments stored in my heart and he fueled me to continue my plan of restoration.

our bikes are our souls which have to tranferd to our next generation as a example of love and care.

btw buddy its your views to invest or not but bike lover inside me bugs you both. Realy sry for out of topic bugging.

**Balgi** · 10-01-2014, 09:35 PM

Re: My Rx100 restoration

Originally posted by avhad sitaram View Post

[MENTION=72198]Balgi[/MENTION] whatever our parents said is true ...i realy favours that.
but live a life like a way to give importance and justice to every aspect.
imo [MENTION=49419]kusmaker[/MENTION] in india we are the people who love equaly to living things and non living things. Bikes are like our childs and i think our bike can understand our emotions and feelings and hence the strong bond betn us exist.

if you thought wasting a twenty thousand bucks on a twenty year old bike is not good then try to sell it ....!!! But you cant coz you know the reason very well than me.

l am also a budget conscious person and thinks just like your dad but my soul thinks exactly opposite.
lot of duels still exists in my mind about what to do or not to do.

hence i have decided to invest a lil bit money every month for the sake of my love and in a one and half year i will get a factory roll out bike.

i am realy sry to you buddies to bug you but wt can i do , i had a talk with kusmaker and realy nice moments stored in my heart and he fueled me to continue my plan of restoration.

our bikes are our souls which have to tranferd to our next generation as a example of love and care.

btw buddy its your views to invest or not but bike lover inside me bugs you both. Realy sry for out of topic bugging.

Hey its ok anything about biking on a bike forum cannot be out of topic.
Our parents don't think of these bikes the same as we do. To us its intriguing to see a 20 year old bike on the road still. And our minds drift to a more diffrent time, a diffrebt era even. But to our parents these are like karizmas, pulsars, and cbzs are to us. These are from our era the same charm doesn't exist. There is no feeling of nostalgia. So they are forced to think objectivly. Perhaps when we reach that age even we may not feel anything for our modern bikes but our children most definetly will.

Please do start your restoration thread soon can't wait.

**Balgi** · 10-01-2014, 09:43 PM

Re: My Rx100 restoration

Originally posted by kusmaker

You are right man, iam always looking for a bike which is standing alone and no one is bothering about her, and when i see this kind of motorcycle a feeling comes from inside like the bike is saying man come and get me, i want to run.

Is it advisable to bolt an old repaired crank on to the new cylinder block, actually the thumb rule is to use new cylinder kit with new crank, but your point is also understandable not to waste what you can save and i will definitely retain it, about the mechanic i will try to find a good mechanic, but you know all the mechanics try to force themselves on you as they think they are in the business from several years and they need not learn anything from a customer.

I doubt there's a mechanic thread, starting a new thread will be a nice option.

----consecutive posts auto-merged-----

No man your view is as important as mine, and if we are really buddy then there is no question of sorry, you can advice me freely, whatever you feel whatever you want to convey pls pls do say it without any hesitation.

You are right about our passion for bikes but what can we do some can't stop themselves from drinking alcohol, some can't stop themselves from smoking cigarette,some from something and some from something, we can't stop ourselves from spending money on old machines, that's the way nature has created us, even today i was on my bike and on a redlight a person came to me and asked that whether Rx-100 has again been launched i said no this is an 20 yrs old machine, he was astounded to see the maintenance and said i must tie lemon and green chillie to my bike otherwise my bike will catch someone's evil eye (nazar lag jayegi), and talking to you that day is still fresh in my mind. It was such an pleasurable moment for me as well.

No such rule buddy. If we had to get new cranks each time our love for biking would have been wiped out by our lack of Tata, Birla, Ambani like wealth. Believe me my bike is 28 years old and this is its 4th overhaul but its still on its original crank. In fact the new one I bought is just lying about as it is not as good a quality crank as the old Japanese one. Buy a new crank only if it is absolutely inevitably necessary.

Btw mechs can be pushy but they can be put in their place b a simple display of our own knowledge.

**Balgi** · 10-01-2014, 11:17 PM

Re: My Rx100 restoration

Originally posted by kusmaker

I doubt that this is the genuine crank which came from factory ,when i rebored the cylinder last time, crank was also repaired, so its quite possible that original one might have been changed with the current one, so once the engine is opened only then one can tell, i will keep your advice in mind for crank replacement and will not waste money at all.

Today i carefully heard the video of my bike engine noise with ear plugs and man when you listen it with ear plug then i came to know how bad is conrod, it's like as if something has broke inside and is striking inside with metal, with time this sound will only get worse, infact when i start my bike in morning or after a long halt conrod makes more noise but as the engine heats up it tends to get a little bit on lower side.

the con-rod makes more noise on early morning starts because overnight the oil settles down and cools down. this causes the oils viscosity to increase slightly. in cold weather it becomes like coconut oil. until the bike warms up it cannot circulate oil to all parts of the engine properly but as you run the bike the oil heats up, viscosity reduces, and circulation increases so bike tends to smooth out. you can ride the bike in fact on this present crank condition for a while by regularly servicing and changing gear oil like you do on a four stroke. since you said budget is tight you might want to look into this method.
BTW I rode my bike a whole year before I decided to correct the problem using this very method. but I still wouldn't recommend it.

**avhad sitaram** · 10-01-2014, 11:44 PM

Re: My Rx100 restoration

Originally posted by Balgi View Post

Hey its ok anything about biking on a bike forum cannot be out of topic.
Our parents don't think of these bikes the same as we do. To us its intriguing to see a 20 year old bike on the road still. And our minds drift to a more diffrent time, a diffrebt era even. But to our parents these are like karizmas, pulsars, and cbzs are to us. These are from our era the same charm doesn't exist. There is no feeling of nostalgia. So they are forced to think objectivly. Perhaps when we reach that age even we may not feel anything for our modern bikes but our children most definetly will.

Please do start your restoration thread soon can't wait.

thanx buddies for your kind replies i am also eager to restore my bike asap but i have to face many problems from time , spares and vitamin m also .
i will be soon start a restoration thread but its not fare to not complete it within time and i cant compromise with quality and injustify a single penny of my hard work.

btw what is your next update , post some pics buddy we are also eagerly waiting for your passionate restoration and how you deal with the situations.
Imo basic tools are always with us just we require some smts ie magneto puller , clutch holding tool , front sprocket holding tool , crankcase separator ,bearing puller tool and lil bit skill and lots of dedication.
if you plans rebuild then why not give a try to DIY . Disassemble and assemble it with your own hands atleast two times (on existing older parts .
to learn erverything about our beast should be our hobby.

**Balgi** · 10-02-2014, 12:48 AM

Re: My Rx100 restoration

Originally posted by kusmaker

Brilliant fault catching bro excellent, actually what is happening is in the morning when i start the bike with choke pulled out the bike just don't starts it feels like too much of fuel is getting inside which the engine is not able to burn, so i have to kick twice or thrice for starting by shutting off the choke, and once it starts i have to hold the throttle a little open so that the engine keeps idling, once the bike is ridden for few kms then it idles and doesn't shuts off.

Yeah man it's not recommended and should be corrected as early as possible, will richening of mixture will ease this problem as little bit of less air and more fuel tends to keep any air cooled engine run cooler.

Currently iam using motul's 20w50 oil for the gb, it's a thicker oil and this could also create problem, as the oe recommendation is of 20w40 oil.

And what about your restoration man eagerly waiting to see what you have done.

Honestly bro what carb are you running. is it mikarb? if so it needs cleaning stat and check the packing. these are notorious for leaking and clogging up and bad quality in general. what setting is it on currently? enriching of mixture will not solve the problem of early morning starts as much as it will burn a hole in your pocket for fuel costs. I suggest you use recommended grade oil in your bike. In Hyderabad we get cold weather from October to mid January during this time I run a thinner grade of oil as engine does not heat up as much. rest of the time I use thicker grade as the heat here actually claims lives each year (yeah that bad bro). the bike in this time heats up and needs higher lubrication. but I know Delhi cold and it lasts longer and is more severe so I suggest during this time you run a thinner grade of oil and up the idle on the bike just a bit. from what you said I think your running the mixture a little rich already. but will consult my mech and tell you soon.

My project is on hold thanx to me being Bengali and it being Durga puja season so any and all updates after next wednesday only guys sorry

----consecutive posts auto-merged-----

Originally posted by avhad sitaram View Post

thanx buddies for your kind replies i am also eager to restore my bike asap but i have to face many problems from time , spares and vitamin m also .
i will be soon start a restoration thread but its not fare to not complete it within time and i cant compromise with quality and injustify a single penny of my hard work.

btw what is your next update , post some pics buddy we are also eagerly waiting for your passionate restoration and how you deal with the situations.
Imo basic tools are always with us just we require some smts ie magneto puller , clutch holding tool , front sprocket holding tool , crankcase separator ,bearing puller tool and lil bit skill and lots of dedication.
if you plans rebuild then why not give a try to DIY . Disassemble and assemble it with your own hands atleast two times (on existing older parts .
to learn erverything about our beast should be our hobby.

buddy most of the tools on your list can be made by you with a little bit of ingenuity and a welder's help. I will post what you need and how to construct in a new thread in DIY soon.
well my friend I first took an active interest in this when I was 11 years old and I used to go sit in the mechanics shop while my bike was being disassembled of reassembled. I learnt everything first hand from the dos and don'ts to the cheating methods employed by mechanics. I actually did dismantle my bike once and put it back together. so I would love to start a DIY thread. Problem is I live in an apartment building and as such have no space to work in. but rest assured once reassembly starts I will post pics and a Q&A with my mechanic as well.

BTW shogun clutch dampers work better on the RX. FYI. I am running mine this way and results are amazing.

**avhad sitaram** · 10-02-2014, 01:39 AM

Re: My Rx100 restoration

[QUOTE=Balgi;1096253]Honestly bro what carb are you running. is it mikarb? if so it needs cleaning stat and check the packing. these are notorious for leaking and clogging up and bad quality in general. what setting is it on currently? enriching of mixture will not solve the problem of early morning starts as much as it will burn a hole in your pocket for fuel costs. I suggest you use recommended grade oil in your bike. In Hyderabad we get cold weather from October to mid January during this time I run a thinner grade of oil as engine does not heat up as much. rest of the time I use thicker grade as the heat here actually claims lives each year (yeah that bad bro). the bike in this time heats up and needs higher lubrication. but I know Delhi cold and it lasts longer and is more severe so I suggest during this time you run a thinner grade of oil and up the idle on the bike just a bit. from what you said I think your running the mixture a little rich already. but will consult my mech and tell you soon.

My project is on hold thanx to me being Bengali and it being Durga puja season so any and all updates after next wednesday only guys sorry

----consecutive posts auto-merged-----

buddy most of the tools on your list can be made by you with a little bit of ingenuity and a welder's help. I will post what you need and how to construct in a new thread in DIY soon.
well my friend I first took an active interest in this when I was 11 years old and I used to go sit in the mechanics shop while my bike was being disassembled of reassembled. I learnt everything first hand from the dos and don'ts to the cheating methods employed by mechanics. I actually did dismantle my bike once and put it back together. so I would love to start a DIY thread. Problem is I live in an apartment building and as such have no space to work in. but rest assured once reassembly starts I will post pics and a Q&A with my mechanic as well.

BTW shogun clutch dampers work better on the RX. FYI. I am running mine this way and results are amazing.[/QUOTE

imo unmount engine and do work on that in your own room , likewise do for every part if possible. Just kidding yaar.

btw how about your spares hunt..??

Announcement

My Rx100 restoration

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment