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**born2slow** · 10-13-2010, 12:53 AM

Ya looks like your bike is running lean. Does it also overheat at part throttle (about 1/4 to 3/4 throttle) too. In that case you can adjust the carb needle to a higher setting. Re-jetting can only help you if you are lean at 3/4 to full throttle.
Bye the way why do you want to rev it up to 9k when your engine produces max power at 7500rpm. I think anything over 8500 will be a waste especially on higher gears.
Also the factory air filter box (length of the intake) is tuned with your bikes engine and removing it and putting a k&N can be be counter productive (especially at lower revs as air flow is not of much importance at low revs). A free flowing intake and exhaust is not the only important thing but also their lengths matter.
Also acceleration of the bike can depend a lot on the difference in masses of you and your friend.

**NANOtechnology** · 10-13-2010, 05:51 AM

@ ts

for now do 1 thing.
remove the spark plug and see the color.
if its parched white, the bike is running lean, which i think will be there for sure.

after determining the color, try to rotate the fuel screw in the carb.
to tune your carb yourself.

it would be a golden screw,

this is how its done.
initially set the idling screw to at-least 3.5k rpm in your bike, rotate the fuel screw on either directions and you'll realize that at some point of time, your bike runs smoothly, while at other times it almost wants to turn off.

get that 1 point where the bike is running extremely smooth.
now slowly decrease the idling screw back to stock idling rpm.

if in case you are not getting that point by this method, you'll have to do the same process by rotating the fuel screw and the air screw both to find that point.

if you are still finding it difficult, get jetting done, which means the mechs won't help much, find a carb tuner.

fazer runs on BS26 carb, the inlet is smaller for k&N to make much difference anyways (compared to pulsys, which run on BS29(every pulsar except 220) and BS32 (220)).

**pavanchirmade** · 10-13-2010, 08:57 AM

@nano: indeed a useful post...
OT:have you been busy? what slide were you talking about?

**NANOtechnology** · 10-13-2010, 10:15 AM

Originally posted by pavanchirmade View Post

@nano: indeed a useful post...
OT:have you been busy? what slide were you talking about?

thanks pawan
you have a PM

**born2slow** · 10-13-2010, 01:01 PM

For a CV carb adjusting the idle will only give a good idle and cruise setting. What about higher mid rage and full rpm. It has to be adjusted with raising/Lowering the jet needle and changing the main jet.
Cv carbs has to be tuned at various rpms/full throttle as the throttle valve position also depends on the manifold vacuum or in other words your throttle position and engine rpm .
Start with
1. 7k - readline/full throttle = Check with the next larger main jet size.

2. 4.5k - 7k/full throttle - Try rising and lowering the jet needle.(rising richer /lowering leaner)

3. For lower rpms you will have to adjust you float height
Your lower rpms seems fine as per what you have mentioned. And a k&n should not make much difference here.

Btw. Dont ask me how but a K&N can richen your 5k to 7k rpm range so also try lowering your jet needle first.

**Abhi6** · 10-13-2010, 08:50 PM

@born2slow Dude, I don't understand these technical things you've asked me to do...I don't know anything about mechanics....You use so many jargons....Please use simply language and advice me what to do...
@NANO I don't even know where the spark plug is, let alone remove it....And moreover, i can't do anything on my own, I have my CA-Inter exams coming up on Nov 9th, so can't waste time...I'll be going to my mechanic on 22nd of Nov...What should i ask him to do?? He is very egoistic, he doesn't listen to whatever i tell him...he says that he knows what he's doing and says he knows more than me so even when i told him to upjet, he never listened...he did some tuning and down-jetting....I think my main jet size is 117.5(Not sure if its 117.5 or 112.5 since its not clear), he has put some 110 or 112 size jet....What is a carb tuner?? Please don't use jargons...i don't know anything technically

**NANOtechnology** · 10-13-2010, 10:01 PM

jetting is absolutely necessary my friend, the method which i mentioned was a temporary setup to avoid damage to the engine.

you have a new bike, learn these stuff man, its very very useful.

i recommend go to a mech who isn't egoistic.
find a mech (anyone apart from that guy) , tell him to remove the spark plug, see the color, if its not white, the bike isn't running lean.

ask that mech that you need to find a carb tuner and so on, if he asks why and stuff, just tell him that you need to change the jet size or something, if he shows interest than tell him your entire problem, if not go to a carb tuner which that guy will recommend and tell him the entire problem.

as you aren't good with tools there's hardly anything else i can tell you to do.

**Abhi6** · 10-14-2010, 04:03 PM

Originally posted by NANOtechnology View Post

jetting is absolutely necessary my friend, the method which i mentioned was a temporary setup to avoid damage to the engine.

you have a new bike, learn these stuff man, its very very useful.

i recommend go to a mech who isn't egoistic.
find a mech (anyone apart from that guy) , tell him to remove the spark plug, see the color, if its not white, the bike isn't running lean.

ask that mech that you need to find a carb tuner and so on, if he asks why and stuff, just tell him that you need to change the jet size or something, if he shows interest than tell him your entire problem, if not go to a carb tuner which that guy will recommend and tell him the entire problem.

as you aren't good with tools there's hardly anything else i can tell you to do.

Man, i wont be using my bike much.....Since the exams are coming, i'd hardly use like 10kms till Nov 21st...Now talking about the mechanic, the mechanic i go to, is supposed to be the best in Chennai...More than 3-4 ppl suggested me his name...But somehow i'm not satisfied with his work...He has worked a lot on my bike, but don't know why its like this...After my exams, the very next day, I'll go to him and ask him to do something....Should i ask him to try to rectify it or should i ask him to put back my stock filter?? I am totally confused..What do you mean by a carb tuner?? Is it a device or something ??? help !

**ajay_vishvanathan** · 10-14-2010, 04:14 PM

Originally posted by Abhi6 View Post

Man, i wont be using my bike much.....Since the exams are coming, i'd hardly use like 10kms till Nov 21st...Now talking about the mechanic, the mechanic i go to, is supposed to be the best in Chennai...More than 3-4 ppl suggested me his name...But somehow i'm not satisfied with his work...He has worked a lot on my bike, but don't know why its like this...After my exams, the very next day, I'll go to him and ask him to do something....Should i ask him to try to rectify it or should i ask him to put back my stock filter?? I am totally confused..What do you mean by a carb tuner?? Is it a device or something ??? help !

Originally posted by NANOtechnology View Post

jetting is absolutely necessary my friend, the method which i mentioned was a temporary setup to avoid damage to the engine.

you have a new bike, learn these stuff man, its very very useful.

i recommend go to a mech who isn't egoistic.
find a mech (anyone apart from that guy) , tell him to remove the spark plug, see the color, if its not white, the bike isn't running lean.

ask that mech that you need to find a carb tuner and so on, if he asks why and stuff, just tell him that you need to change the jet size or something, if he shows interest than tell him your entire problem, if not go to a carb tuner which that guy will recommend and tell him the entire problem.

as you aren't good with tools there's hardly anything else i can tell you to do.

hi.. im kinda new here.. kinda lost too.. can you pls tell me about that spark plug.. the white.. some word 'lean' what does it mean.. i mean please be more clear.. i didnt get that part.. pls. enlighten me..

**NANOtechnology** · 10-14-2010, 04:31 PM

Originally posted by Abhi6 View Post

Man, i wont be using my bike much.....Since the exams are coming, i'd hardly use like 10kms till Nov 21st...Now talking about the mechanic, the mechanic i go to, is supposed to be the best in Chennai...More than 3-4 ppl suggested me his name...But somehow i'm not satisfied with his work...He has worked a lot on my bike, but don't know why its like this...After my exams, the very next day, I'll go to him and ask him to do something....Should i ask him to try to rectify it or should i ask him to put back my stock filter?? I am totally confused..What do you mean by a carb tuner?? Is it a device or something ??? help !

carb tuner is a guy (mech) who deals in tuning carbs only..
he has all jet sizes handy with him.
and specializes in only this work.

find a carb tuner, he can only sort your problem.
do not revert back to stock, you have already changed your jet, just give it some time and efforts, and get it sorted out.

most probably a bigger jet of 112 or probably 115 will solve your problem.

if your mech was good enough you wouldn't have been having this thread my friend.

**born2slow** · 10-14-2010, 07:34 PM

Abhi with whatever info you have provide its very difficult to tell you exactly what to do. As you don't seem to be technically inclined

, tell your problems to your mechanic and hope for the best.Don't worry nothing will happen to the bike as long as it is not pinging too much (like marbles rolling inside the engine). BTW you found the spark plug

.

**psr** · 10-14-2010, 09:41 PM

Originally posted by Abhi6 View Post

@born2slow Dude, I don't understand these technical things you've asked me to do...I don't know anything about mechanics....You use so many jargons....Please use simply language and advice me what to do...
@NANO I don't even know where the spark plug is, let alone remove it....And moreover, i can't do anything on my own, I have my CA-Inter exams coming up on Nov 9th, so can't waste time...I'll be going to my mechanic on 22nd of Nov...What should i ask him to do?? He is very egoistic, he doesn't listen to whatever i tell him...he says that he knows what he's doing and says he knows more than me so even when i told him to upjet, he never listened...he did some tuning and down-jetting....I think my main jet size is 117.5(Not sure if its 117.5 or 112.5 since its not clear), he has put some 110 or 112 size jet....What is a carb tuner?? Please don't use jargons...i don't know anything technically

Under the circumstances you have mentioned ,please revert back to stock setup with the mechanic who did it for you in the first place,and save your bike from further problems and heat damage. Start learning about Internal combustion engines ,and carburetors,...then attempt to do the mods. It is the safest way for you and the bike.

**Abhi6** · 10-15-2010, 08:29 PM

@NANO How do I find a carb tuner?? Could you please refer me anybody in chennai ?? I mean, from where do i search for one??
@born2slow Okay man, I understand you guyz can't do anything but advise me what to do technically, which I find it hard to assimilate.. :P. Anyways, I'll try finding a good mechanic...Please let me know if you know anybody in Chennai(carb tuner)
@psr yes, going to do that if its not working...

**NANOtechnology** · 10-15-2010, 11:51 PM

ask the mechs, they'll know better.

we have carb uncles here in mumbai, i have no idea about stuff in chennai.

i suggest don't revert back to stock, make it work, someday you'll realize what goodwill have you done.
for now, atleast try to search some basic details over the internet.
ask some of your friend who would know more than you, and do what I've mentioned in earlier post to Prevent Damage...

don't worry too much dude, its not a very big problem.
find right guys, try local search or some local xbhp members near your area, maybe you wouldn't even need a mech or carb tuner.

all the best.

**Abhi6** · 10-16-2010, 08:15 PM

Originally posted by NANOtechnology View Post

ask the mechs, they'll know better.

we have carb uncles here in mumbai, i have no idea about stuff in chennai.

i suggest don't revert back to stock, make it work, someday you'll realize what goodwill have you done.
for now, atleast try to search some basic details over the internet.
ask some of your friend who would know more than you, and do what I've mentioned in earlier post to Prevent Damage...

don't worry too much dude, its not a very big problem.
find right guys, try local search or some local xbhp members near your area, maybe you wouldn't even need a mech or carb tuner.

all the best.

Okay man...Thanks a lot.!

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My Fazer is spoilt...! :(

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