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**yamdoot** · 04-17-2012, 07:34 PM

Originally posted by aargee View Post

Ditto...none other than...the one & only UNI

BTW, can I use the TM28 or should I stick only with VM22? Carb will definitely by Mikuni for sure be it VM or TM. So it will be 180 & 17.5 mm right?

Mine is 4S head & cylinder + 5S gearbox + VM22 with 165M & 17.5P

Stick to the VM. TMs on stock ports are overkill and are hard to jet. Try a 180 or a 190 MJ. Do a plug chop, if u feel youre rich, start down jetting. Most often i have seen that just putting a 180 will do the job with carb tuning.

**dpak89** · 04-18-2012, 11:24 AM

I have not tried any performance mod before. SO i dont have much idea about this. But a small thing which i would like to suggest is, please acquire a spare cylinder kit/carb and do this as a perfectly set/running RX is something very difficult to see in current scenario. Ignore if you are already having a spare.

**aargee** · 04-18-2012, 11:28 AM

Originally posted by yamdoot View Post

Stick to the VM

Will do saar

Originally posted by dpak89 View Post

please acquire a spare cylinder kit/carb and do this as a perfectly set/running RX is something very difficult to see in current scenario. Ignore if you are already having a spare.

Why Deepak

Carb is something I can understand, but again, its not that difficult putting back the jets & switch to stock setup; may be I loose a little here & there on air screw; but why cylinder kit

I thought, if I know what I'm doing, then its not big deal switching back & forth, isn't it? or am I assuming too much?

**dual disc 200** · 04-18-2012, 11:30 AM

Originally posted by aargee View Post

Will do saar

Why Deepak

Carb is something I can understand, but again, its not that difficult putting back the jets & switch to stock setup; may be I loose a little here & there on air screw; but why cylinder kit

I thought, if I know what I'm doing, then its not big deal switching back & forth, isn't it? or am I assuming too much?

I think Deepak is talking about dust entering the Carb Mouth & leading to Scorching on the cylinder walls & busting the cylinder eventually.

Am i right Deepak?

**dpak89** · 04-18-2012, 11:35 AM

No sir...It was just my personal view...You see, I am so scared to try even a simple mod like this on my bike as i dont want to disturb it.
Reason: My carb's Jet threads are having some kind of cuts ...like it is very difficult to fix a jet if i remove them for cleaning at least. Also jets have the same problem. so i am scared. Thats why i said having a spare carb is better.
@RAM:yes in unfortunate case, even that.
Myself and Ram have a little bit of experience in searching for carb jets and i guess Ram still have that problem.

**aargee** · 04-18-2012, 11:36 AM

Originally posted by dual disc 200 View Post

I think...cylinder eventually.

That's basic knowledge to cover up all the parts isn't? Considering the fact we do it for passion, wouldn't we do that? But again, if that were the case, same thing could happen with the spare ones too right

Dpak - Don't worry man

Worst thing that can happen is the Rx wouldn't start; that's when CBR & Activa come to rescue; that way my routine life isn't affected & I can have my own sweet time to work on them.

**dual disc 200** · 04-18-2012, 11:39 AM

Originally posted by aargee View Post

That's basic knowledge to cover up all the parts isn't? Considering the fact we do it for passion, wouldn't we do that?

This Bug will never stop biting..We will continue no matter what...

Originally posted by aargee View Post

But again, if that were the case, same thing could happen with the spare ones too right

Yes, Aargee saar but the spares ones are the last remains for the hard lessons learnt on the Modified bore lol...

**aargee** · 04-18-2012, 11:45 AM

Originally posted by dual disc 200 View Post

but the spares ones are the last remains for the hard lessons learnt on the Modified bore lol...

See, I perfectly agree if this is going to be a rebore job; for instance, the fellow who does the rebore screws up with the piston size. On such occasion a spare cylinder will be of great help to get the vehicle up & running without wasting time.

That's why I said, in my case, I've 3 other vehicle backup, so even if Rx is admitted in garage for weeks, I've no issues; I can still work with the kaput part. Again, if the cylinders are to be ordered & to be got over few months time, YES, I certainly agree with Deepak

PS - Now you guys are literally shaking my faith!!! I'm now getting weird thoughts like, what if the carb or reed valves or engine bolt nut cuts etc

Would take months to get them fixed. Don't scare me & help me to loose my confidence guys!!! That too when I contemplating to work on my CBR!!!

**dpak89** · 04-18-2012, 11:51 AM

^ha ha...Nah!!it was just a statutory warning

Chill...and let us know th e results

**yamdoot** · 04-18-2012, 01:27 PM

Originally posted by dpak89 View Post

No sir...It was just my personal view...You see, I am so scared to try even a simple mod like this on my bike as i dont want to disturb it.
Reason: My carb's Jet threads are having some kind of cuts ...like it is very difficult to fix a jet if i remove them for cleaning at least. Also jets have the same problem. so i am scared. Thats why i said having a spare carb is better.
@RAM:yes in unfortunate case, even that.
Myself and Ram have a little bit of experience in searching for carb jets and i guess Ram still have that problem.

Yes, two is better than one. When i experimented the big bore on my RX, i am still glad i kept the original std. bore aside which later came to my rescue when the project failed.

**dual disc 200** · 04-18-2012, 01:33 PM

Originally posted by yamdoot View Post

Yes, two is better than one. When i experimented the big bore on my RX, i am still glad i kept the original std. bore aside which later came to my rescue when the project failed.

But that was Big Bore set-up right Nitesh? A simple AFM airfilter set-up along with proper jetting shouldn't do that much harm that one would suffer other than the bike running lean, stalling, poor Mileage figures, Jerking, excessive heat & stuff if not tuned properly. I'm sure members here are knowledgeable enough not to carry on riding with excessive steam finally holing the piston right?

Also is the 17.5 Pilot's & 180 Mains a spot-on figure for UNI on a bone stock 5S running a chrome pipe? Will this vary if I'm running on the fat tube cat-con due to it's restrictive nature?

**aargee** · 04-18-2012, 02:29 PM

^^^ Spoke my mind Ram;
Worst case if AFR goes wrong, I can switch back to stock & get it working right? Unless disasters like cylinder bolt or something is chipped or cut off

**dual disc 200** · 04-18-2012, 02:43 PM

Originally posted by aargee View Post

^^^ Spoke my mind Ram;
Worst case if AFR goes wrong, I can switch back to stock & get it working right? Unless disasters like cylinder bolt or something is chipped or cut off

Hope i was encouraging enough to carry out your Summer experiment Aargee?

**SriramEfunds** · 04-18-2012, 03:18 PM

Aargee and Ram:- Not all experiments comes out clean, even the simplest of all can error out and prove costly. It's not that I'm asking you call off the project, but as Nitesh said, it is better to do all this with a back up plan.

Aargee:- Why don't you do this summer project with an another used bore? What's stopping you? Remember, a scar on the stock bore will never be the same.

**aargee** · 04-18-2012, 03:21 PM

Originally posted by SriramEfunds View Post

it is better to do all this with a back up plan

Backup with what? I'm going to be playing only with carb, airfilter & jets

Originally posted by SriramEfunds View Post

Aargee:- Why don't you do this summer project with an another used bore? What's stopping you? Remember, a scar on the stock bore will never be the same.

Araey...Sri...I'm not touching anything on bore; for that matter I'm not even opening the spark plug, forget alone the cylinder or head. Why do I need to have a spare cylinder for that

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