Pilot Jet Increase

Kcarvajal · 05-06-2012, 10:57 PM

Hi guys. I haven't been here in a while. Been busy tinkering with my bike which I've changed countless times already.

Here's my bike, along with my friends' during a ride this weekend. Fun ride.
[attachment=0:1pi176jp]photo.JPG[/attachment:1pi176jp]
Anyway, any of you ever have to increase the pilot jet? I installed a larger air cleaner and can't seem to dial it right and think I need to go bigger.

Thanks, and safe riding this season!

Ken

PimpS · 05-07-2012, 02:53 AM

Beautiful! Good job indeed!

**jonathan180iq** · 05-07-2012, 08:44 AM

To my knowledge, no one has ever gone above a 135 and that was pretty extreme. I think with just an air filter I was sitting 122.5 or 125. Most people, even with both intake and exhaust done, settle somewhere between 125-130. I would try a 130 with what you have and then dial back the other adjustments.

EDIT: So I see you are referring to the Pilot
We haven't seen a lot of pilot changes. Mostly just some adjustments here and there. What do you currently have it turned to? I mean, either way, as you know, you can just swing in to the local Japanese bike shop with your factory jet and see if they have some larger matching ones. The pilot is always the biggest pain in the ass to get set right the second time though. Good luck, man.

raul10141964 · 05-07-2012, 01:37 PM

I running with different air cleaner an set my pilot at 2.5 turns an change the main jet to 140 , ask for small mikuny main jet

Kcarvajal · 05-07-2012, 03:18 PM

Thanks gentlemen!

Jonathan, I think I have it 3 turns out.

I bumped my main to 140 from 130. It actually runs really well and feel that I can easily keep up with my buddies. (OK, separate topic).

I'll check things out this evening. Screw in is lean, out is rich, right? Just want to confirm I'm doing this right.

Ken

blaine · 05-07-2012, 04:42 PM

Quote:

Originally Posted by Kcarvajal

I'll check things out this evening. Screw in is lean, out is rich, right? Just want to confirm I'm doing this right.

Ken

You are correct.If idle mixture screw is on back side of carb,the opposite is true!!

:cool:

**jonathan180iq** · 05-07-2012, 04:50 PM

Are you guys with 140s running straight open headers, no baffles or anything?

Kcarvajal · 05-07-2012, 05:08 PM

Hi! Yes, no baffles, straight pipes. Bad? Pls say no.

Rookie Rider · 05-07-2012, 10:49 PM

sounds good to me.... i think...... how does it sound anyway ?

Water Warrior 2 · 05-08-2012, 01:00 AM

Quote:

Originally Posted by Rookie Rider

sounds good to me.... i think...... how does it sound anyway ?

Bum bum bum rat ta ta ta ta ............or there abouts.

05-06-2012, 10:57 PM	#1
Kcarvajal Member Join Date: May 2011 Posts: 61	Pilot Jet Increase Hi guys. I haven't been here in a while. Been busy tinkering with my bike which I've changed countless times already. Here's my bike, along with my friends' during a ride this weekend. Fun ride. [attachment=0:1pi176jp]photo.JPG[/attachment:1pi176jp] Anyway, any of you ever have to increase the pilot jet? I installed a larger air cleaner and can't seem to dial it right and think I need to go bigger. Thanks, and safe riding this season! Ken Login or Register to Remove Ads
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05-07-2012, 02:53 AM	#2
PimpS Senior Member Join Date: Dec 2011 Location: Slovenija Posts: 475	Re: Pilot Jet Increase Beautiful! Good job indeed!
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05-07-2012, 08:44 AM	#3
jonathan180iq Super Moderator Join Date: Jan 2007 Location: Dalton, GA Posts: 3,996	Re: Pilot Jet Increase To my knowledge, no one has ever gone above a 135 and that was pretty extreme. I think with just an air filter I was sitting 122.5 or 125. Most people, even with both intake and exhaust done, settle somewhere between 125-130. I would try a 130 with what you have and then dial back the other adjustments. EDIT: So I see you are referring to the Pilot We haven't seen a lot of pilot changes. Mostly just some adjustments here and there. What do you currently have it turned to? I mean, either way, as you know, you can just swing in to the local Japanese bike shop with your factory jet and see if they have some larger matching ones. The pilot is always the biggest pain in the ass to get set right the second time though. Good luck, man. Login or Register to Remove Ads
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05-07-2012, 01:37 PM	#4
raul10141964 Senior Member Join Date: Apr 2012 Location: Elkhart, Indiana Posts: 369	Re: Pilot Jet Increase I running with different air cleaner an set my pilot at 2.5 turns an change the main jet to 140 , ask for small mikuny main jet
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05-07-2012, 03:18 PM	#5
Kcarvajal Member Join Date: May 2011 Posts: 61	Re: Pilot Jet Increase Thanks gentlemen! Jonathan, I think I have it 3 turns out. I bumped my main to 140 from 130. It actually runs really well and feel that I can easily keep up with my buddies. (OK, separate topic). I'll check things out this evening. Screw in is lean, out is rich, right? Just want to confirm I'm doing this right. Ken Login or Register to Remove Ads
	0

05-07-2012, 04:50 PM	#7
jonathan180iq Super Moderator Join Date: Jan 2007 Location: Dalton, GA Posts: 3,996	Re: Pilot Jet Increase Are you guys with 140s running straight open headers, no baffles or anything?
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05-07-2012, 05:08 PM	#8
Kcarvajal Member Join Date: May 2011 Posts: 61	Re: Pilot Jet Increase Hi! Yes, no baffles, straight pipes. Bad? Pls say no.
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05-07-2012, 10:49 PM	#9
Rookie Rider Senior Member Join Date: Jun 2011 Location: Queens, NYC Posts: 1,263	Re: Pilot Jet Increase sounds good to me.... i think...... how does it sound anyway ?
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