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**Deathwing** · 04-26-2016, 04:18 PM

Re: Honda CBR 250R

Originally posted by Guru Kumar View Post

Well You Got It Wrong I Didn't Say Anything On Changing Stock ECU. I Meant You Could Do Your Valve Backpressure Readings At The Dyno Bangaluru Guys. They Just Have To Do The Reading And You Make Your Modified Exhaust Pressure Filters To Stay The Same As Stock And Be Einstein For Sound Department. If You Are Bored With Stock You Don't Have To Scrach Your Pockets Out Your Pockets.

Finally If You Are Happy I'm Happy. I Just Suggested That's All.

I'll do that, thanks for the suggestion, ill be running this exhaust temporarily , using my stock as a size and dimension comparo and make the final product with a carbon fibre muffler, this current rough exhaust is loud. Reduce loudness and increase output, basically balance the exhaust out. I'm only taking out my stock to design a better one and get the sizing and dimensions spot on, I'm only gonna get all this done through seasoned professionals.

**Guru Kumar** · 04-26-2016, 04:23 PM

Re: Honda CBR 250R

Try This If You Have Not Done It. Our Bike Has A DC System So It's Completed Only If It Gets Proper Earth. Due To Time And Weather Some Time The Earth Area Gets Dirty So Good Conductive Fails On Current. Fully Charge Your Battery By Pass The Earth. I Think Your Problem Will Be Solved. Positively.

**Guru Kumar** · 04-26-2016, 04:33 PM

Re: Honda CBR 250R

Originally posted by Deathwing View Post

I'll do that, thanks for the suggestion, ill be running this exhaust temporarily , using my stock as a size and dimension comparo and make the final product with a carbon fibre muffler, this current rough exhaust is loud. Reduce loudness and increase output, basically balance the exhaust out. I'm only taking out my stock to design a better one and get the sizing and dimensions spot on, I'm only gonna get all this done through seasoned professionals.

Excellent Bro. Do Throw Me Light On Carbon Fiber I Wanted To Replicate The Back Fender Tank Collar And Side Panel Front. But I'm Unaware Of People Who Make Carbon Fibre Products To Customize Demand.

**Deathwing** · 04-26-2016, 04:43 PM

Re: Honda CBR 250R

Originally posted by Guru Kumar View Post

Excellent Bro. Do Throw Me Light On Carbon Fiber I Wanted To Replicate The Back Fender Tank Collar And Side Panel Front. But I'm Unaware Of People Who Make Carbon Fibre Products To Customize Demand.

Carbon fibre is going to imported soo yeah, have to decide and make based on the dimensions. Will keep you updated on it and also my final product, I'm looking to make something as much as quality but a similar or better power spec like say a akrapovic or yoshi or two brothers, but at a affordable price. I'm also pitched my idea to benelli for their tnt250 bike, since its a new bike and they were keen on a aftermarket exhaust cause many customers have enquired and requested. Also my uncle did up the gixxer track bikes right from the fairing to the exhaust and braking n bunch of other things.

Attached Files

**Iam_Hoodi_CBR** · 04-26-2016, 04:57 PM

Re: Honda CBR 250R

Originally posted by Guru Kumar View Post

Dyna Beeds the basic idea is that instead of affixing balance weights to the exposed surface of the rim, you pour a couple ounces of ceramic beads through the valve stem into the tire before screwing in the valve core and filling with air; as your vehicle rolls down the road, these beads somehow "know" where to position themselves to counteract any pre-existing mass imbalance.

Or at least that's the party line. So far all the evidence I've seen supporting them seems to be anecdotal, and it's further blurred by the fact that a couple of friends don't even bother to balance their motorcycle tires at all, despite hitting high speeds at track, that suggests motorcycle tires may be pretty well-balanced to begin with, and so the fact that some people motorcycles ride smoothly with Dynabeads doesn't say much of anything about their performance.

Note that this product is also marketed for use in car and truck tires and they are claimed to be effective for lateral balancing as well as radial balancing. By the manufacturer.

My gut feeling is that they can't possibly work, but I'm curious to hear whether anyone has a rock-solid engineering analysis that says they can or can't, or any objective testing that says the do or don't work.

Well, I also have gone through the reviews posted over the internet on those beads. Based on that along with the theory behind it am thinking to go for it.

Yes these are designed to use for almost all kind of pneumatic tyres, and I am also thinking to install it in my car where am not 100% satisfied with the balancing that is done today at tyre dealers.

Coming to two wheelers, I guess because of their size/weight compared to the normal car wheel, the balancing is not required for most of the bikes.

And out of many members here only few are bothered about wheel balancing. This means that bike is usually less affected with wheel unbalanced or most of the wheels are nearly perfect that they don't need balancing.

And coming to proof, Not exactly the same but when a washing machine is spinning for drying, in the initial stage it moves a lot based on the weight imbalances. But once the revolution is increased the weight balances itself by moving the clothes around to spread the weight almost evenly. Dynabeads are not going to push and pull the whole wheel but I should do the work of balancing correctly.

Ram.

**Sergeant_DawG** · 04-26-2016, 05:41 PM

Re: Honda CBR 250R

Originally posted by Deathwing View Post

I get what you saying, but I'm not messing with the ecu as of now, gonna run stock, and u said run to death? I have already ran this exhaust before and faced no issues with the engine, even took it to my SVC , he was saying it was loud. The other ppl in the SC were very curious about my exhaust and even asked if I could make one for them lol, this is the 3rd time I'm running this exhaust. Anything with ecu I'm gonna do it in Bangalore, at race dynamics, spoke to them told them I want a ecu remap and mods for commuting and touring, they told me petal disc change, headwork, piggyback ecu , bigger cams,also bike will be tuned as per the exhaust I put on later, right now stock ecu is not gonna change,

How much are you spending for the disc change, piggy back ecu, headwork, bigger cams etc?? For all these, you could've bought a higher CC twin cylinder bike

No offence bro! I cringed here seeing all those mods you are doing on your ceeber! All mods mentioned above are merely waste of money unless you are a very passionate Track rider. Anyway play safe!

**Deathwing** · 04-26-2016, 05:55 PM

Re: Honda CBR 250R

Originally posted by Sergeant_DawG View Post

How much are you spending for the disc change, piggy back ecu, headwork, bigger cams etc?? For all these, you could've bought a higher CC twin cylinder bike

No offence bro! I cringed here seeing all those mods you are doing on your ceeber! All mods mentioned above are merely waste of money unless you are a very passionate Track rider. Anyway play safe!

The ecu cost costs around 15k, the petal discs around 8, the bigger cams around 5 not sure about the headwork, but I reckon the mods will come upto 30-40k Max . I'm not gonna mod it all together, I'm gonna do like one by one, some more RND is needed. You have a point , but I'm only gonna upgrade after a few years, I'm looking at the CBR 650f, z800, ninja 650, TNT 600i n hopefully if Yamaha releases the fz07/mt07 naked n tracer models that would be my pick. And u said for track, I spoke to the people at race dynamics and told em for highway and commuting use soo as per that only I'll do any mods, nothing over the top and I'm only spending 30k totally on the mods, the exhaust I'm making is for free as I own a factory, we make fairing, tanks, exhausts earlier for two strokes but also newer bikes like I've Mentioned before, I'm going to mod it part by part n will talk to the people and go thro all risks n everything. I'm secretly hoping Honda releases the 500r, I see that as a perfect bike with right amount of power and everything

**theironhorse99** · 04-26-2016, 07:04 PM

Re: Honda CBR 250R

Originally posted by Guru Kumar View Post

Well RE Breather Pipe Throws Away Excess Oil To Chain. Im Talking About Old Model RE Not The New Engine. As I Have A 16yrs Experience With It.

You Can See A Breather Pipe Danglin Just Behind The Side Stand Its The Red Pipe But Its End Is Closed With A Black Cap Kind Of Plastic May Be It Has Holes In It. Not Sure.

Like You Said Will Take Care Always For The Right Amount Of Oil That Is The Safe Bet.

Please Share If You Know. Does Changing To Yamaha FZ Oil Filter From Stock Filter. Creates A Load On The Oil Pump. As FZ's Are 150cc Oil Filter Where As CBR250R Is 250cc. Will The OHC Get Proper Of Oil Supply By The Pump If One Uses Such Filter.

Thanks For The Prompt Reply Mate.

i am using fz filter for good 5-6k km now and i have come to belive that it works better than OEM filter for 1/5 of the cost.

Originally posted by Iam_Hoodi_CBR View Post

Hi Aman,

As per my discussion with one of the MRF tyre shop from where I have changed the tyres, he said that the same machine(newer ones) that is used for balancing the car tyres can be used to balance two wheeler tyres. He said that there are options given in the machine to do, but a separate attachment needs to be mounted for fixing the two wheeler tyres.

He also owns a Yamaha z1, but he is unable to use that machine as MRF is yet to give the attachment and the necessary training to do two wheeler balancing

.

Yesterday I called to tyrestore in channai for an enquiry about balancing tyres for CBR 250, he said Rs. 200 for tyre removal/fitment and Rs. 200 for balancing for single tyre. So that's Rs.800 in total. He said that I can also bring the wheels separately for balancing(tyre removal and fitment to be done outside/myself).

Due to this am now seriously considering dynabeads for tyre balancing, which will last longer and can be reused at my next tyre change too. But need to get it from US as its not available here in india

.

Ram

this is good news. well 800 considering pulling both tyres out and testing and fitting back seems high but still its atleast an option. i have been running around years to get tyres balanceed and could not find anything yet.

Originally posted by Deathwing View Post

Guys I'm going into testing phase of my prototype exhaust, I know many people advised against it, but I thought wat the hell, it makes a major difference in traffic, wat you see in the picture is a temporary exhaust , based on it I'm making a better design and stainless steel exhaust, which will have a bigger mouth, and a muffler sort of material inside to decrease sound n increase power, I know im gonna get some flak but I'll keep y'all updated on the bike . Gonna use this exhaust for another 1000kms or soo and then pop back my stock n service it n by the time the bike comes back from service I'll put on my proper stainless steel exhaust, the current steel used is MS hence its a temporary scene .

go ahead mate. keep us posted. good to see you doing DIY however make sure all the "scientific measurements" are in place.

Originally posted by Guru Kumar View Post

Dyna Beeds the basic idea is that instead of affixing balance weights to the exposed surface of the rim, you pour a couple ounces of ceramic beads through the valve stem into the tire before screwing in the valve core and filling with air; as your vehicle rolls down the road, these beads somehow "know" where to position themselves to counteract any pre-existing mass imbalance.

Or at least that's the party line. So far all the evidence I've seen supporting them seems to be anecdotal, and it's further blurred by the fact that a couple of friends don't even bother to balance their motorcycle tires at all, despite hitting high speeds at track, that suggests motorcycle tires may be pretty well-balanced to begin with, and so the fact that some people motorcycles ride smoothly with Dynabeads doesn't say much of anything about their performance.

Note that this product is also marketed for use in car and truck tires and they are claimed to be effective for lateral balancing as well as radial balancing. By the manufacturer.

My gut feeling is that they can't possibly work, but I'm curious to hear whether anyone has a rock-solid engineering analysis that says they can or can't, or any objective testing that says the do or don't work.

they do work. have few FM's on other forums which have used them on bigger bikes and have praises. however the problem is to change Dyna bead out regular valves will not work. everytime you try to fill air they will get sucked and block the valve. so you would need to move to a diffrent spring type valve and then the cost and someone to carry it from states.

their road condition and the qualirt of tyre sold is far far better than us. unsure how well will it work here on our uneven highways.

Originally posted by Raminder_Singh View Post

Have tried that already but didn't work. I gave it one last shot last night and it did start. After engine warm up, I opened the throttle a bit (around 4K RPM) and all went fine. I again revved it a bit and this time it did some hiccups and the engine again shut down and didn't start after that. Tried again this morning and the same thing happened- it started in the first self but after revving a little bit, it again did hiccups and shut down. I have checked all the relays that I could find after removing the side panels and they are all connected. Not sure what to check now.

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

Hi Arvind
That's the first thing I tried but didn't work

good to hear that it did start. this now seems to be normal issue. try starting it again and keep revving it. your injector has either developed some moisture around it causing the same else fuel has had some water/moisture seepage. if possible remove all old fuel and fill in fresh fuel. i am 100% sure this will solve it.

however if it starts this time. immediately take it for a ride and keep revving it for some time.

**Raminder_Singh** · 04-27-2016, 03:53 AM

Re: Honda CBR 250R

Originally posted by theironhorse99 View Post

good to hear that it did start. this now seems to be normal issue. try starting it again and keep revving it. your injector has either developed some moisture around it causing the same else fuel has had some water/moisture seepage. if possible remove all old fuel and fill in fresh fuel. i am 100% sure this will solve it.

however if it starts this time. immediately take it for a ride and keep revving it for some time.

I tried again some time before and it again started but engine got shut down. This time I also recorded a video of it to share some more details. It is uploaded on the link mentioned below:

This item might not exist or is no longer available - OneDrive

https://onedrive.live.com/redir?resid=703FA15C56BAB4FF!165111&authkey=!AE-L1J6K1ZtAq-4&ithint=video%2cmp4

@Mods: I wasn't able to attach the file as an attachment so I had to upload it to shared location and copy the link here. If this doesn't comply with forum rules, please feel free to remove it but please also let me know any alternate way I can share this video (which is below 4 Megabytes in size).

**nomad_sachin** · 04-27-2016, 08:49 AM

Re: Honda CBR 250R

Hello everyone, i am new to xbhp and this is my first thread.

I have switched to CBR250R recently and have done a few rides including ride to spiti.

I find stock seat is too hard and it becomes very inconvenient on long rides...from where can i get a softer seat in delhi ?
also i have heard of gel seat...please guide me through this.

Also on longer rides i get pain in my wrists. suggest something, will raised handlebar be a solution to this ?

**Deathwing** · 04-27-2016, 01:26 PM

Re: Honda CBR 250R

Originally posted by nomad_sachin View Post

Hello everyone, i am new to xbhp and this is my first thread.

I have switched to CBR250R recently and have done a few rides including ride to spiti.

I find stock seat is too hard and it becomes very inconvenient on long rides...from where can i get a softer seat in delhi ?
also i have heard of gel seat...please guide me through this.

Also on longer rides i get pain in my wrists. suggest something, will raised handlebar be a solution to this ?

Are u sure ur not seated right? What is your height? The first Time I test rode a CBR, I had back pain then realized its probably the test ride vehicle and my seating position, now 2 years on and 21000km later,I have faced no such issues, even on long rides should be fine. The stock seat is good enough for me, but u can get out ride on air and a few more seat making companies that make for bikes. The bike thrives on long highway rides, and for its doing all the functions perfectly like commuting , touring ,getting around in general.

**kashishverma.46** · 04-27-2016, 01:47 PM

Re: Honda CBR 250R

Hey guys.....I have booked a Honda CBR 250r..pretty excited about the delivery 😄...I will be probably getting the delivery tomorrow.... Can any one please provide me with the PDI list and could u guide me through to look for things before taking the delivery.
Thanks in advance☺

**sanjaynk15** · 04-27-2016, 04:13 PM

Re: Honda CBR 250R

Originally posted by kashishverma.46 View Post

Hey guys.....I have booked a Honda CBR 250r..pretty excited about the delivery 😄...I will be probably getting the delivery tomorrow.... Can any one please provide me with the PDI list and could u guide me through to look for things before taking the delivery.
Thanks in advance☺

Congrats in advance buddy! The things I did while taking the delivery was:
1.Check the fairing and whole body for scratches
2. Check the exhaust heat shield for scratches (this can be scratched easily that's why)
3. Check the tyres, tyre pressure.
4. Switch it on and check the odo reading.
5. Open the pillion seat and check if all items are present in the toolkit, check if first aid kit is provided.
6. Check the monoshock settings(stiff or soft)
7. Check the amount of fuel in the tank. I got 3 litres complimentary so make sure you ask them!

8. Check if all lights are working, including pass light, high beam.
9. Check brake fluid levels in front and rear reservoirs.
You're good to go! Be patient, I know its not possible when you see your bike. You tend to forget everything

Do post some snaps! Which color did you opt for? And make sure you are getting Mrf tyres.

**nomad_sachin** · 04-27-2016, 08:06 PM

Re: Honda CBR 250R

Originally posted by Deathwing View Post

Are u sure ur not seated right? What is your height? The first Time I test rode a CBR, I had back pain then realized its probably the test ride vehicle and my seating position, now 2 years on and 21000km later,I have faced no such issues, even on long rides should be fine. The stock seat is good enough for me, but u can get out ride on air and a few more seat making companies that make for bikes. The bike thrives on long highway rides, and for its doing all the functions perfectly like commuting , touring ,getting around in general.

thanks deathwing for your response

CBR250 is a very capable bike, no doubt about that but I feel that I need a softer seat as I frequently go on long mountain rides which involve riding 10-12hrs per day and off roading too.
btw I am 5'9 and weigh 70kg.
I have done 3 rides on my cbr and after each ride both of my wrists pain.
Is there any guidline regarding sitting posture?

**kashishverma.46** · 04-27-2016, 08:17 PM

Re: Honda CBR 250R

Originally posted by sanjaynk15 View Post

Congrats in advance buddy! The things I did while taking the delivery was:
1.Check the fairing and whole body for scratches
2. Check the exhaust heat shield for scratches (this can be scratched easily that's why)
3. Check the tyres, tyre pressure.
4. Switch it on and check the odo reading.
5. Open the pillion seat and check if all items are present in the toolkit, check if first aid kit is provided.
6. Check the monoshock settings(stiff or soft)
7. Check the amount of fuel in the tank. I got 3 litres complimentary so make sure you ask them!

8. Check if all lights are working, including pass light, high beam.
9. Check brake fluid levels in front and rear reservoirs.
You're good to go! Be patient, I know its not possible when you see your bike. You tend to forget everything

Do post some snaps! Which color did you opt for? And make sure you are getting Mrf tyres.

Thank you..I know we do tend go impatient easily......but....I will surely follow the above mentioned things...I have opted for a black option ND tyres I am getting are the continental one's....
What should be tyre pressure both front ND rear and the stock suspension setting at rear..??

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Honda CBR 250R

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