Main jet size

barnold · 06-26-2017, 07:24 PM

I was bumping the internet and it looks like a normal main jet size is around 100. I am running a 95 stock air box. should I up size. I am in Michigan

Darth Racer · 06-27-2017, 12:58 PM

More information needed the help guide you.
Make
Model
Engine size
type of use etc

barnold · 06-28-2017, 10:50 AM

my bad. Kuzuma Falcon 150cc atv, normal trail riding.

Darth Racer · 06-29-2017, 09:42 PM

I don't have any experience with that size engine. Kind of surprised nobody has answered this for you.

Bueller ... Bueller... anyone.. Bueller

zackattack91 · 06-30-2017, 07:51 AM

Stock main jet is 100 if it's the cvk style carburetor and the CVT belt style engine. Engine model 157qmj. Pilot jet is 35. That's what my 150cc coolster came with. Model 3150dx2. Not sure what engine yours has.

lonfu · 12-27-2017, 08:49 AM

Depends on the elevation too. I had to reduce mine for my altitude of 3500 feet.

06-26-2017, 07:24 PM	#1
barnold Join Date: Nov 2016 Location: Chesterfield, MI Posts: 15	Main jet size I was bumping the internet and it looks like a normal main jet size is around 100. I am running a 95 stock air box. should I up size. I am in Michigan
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06-30-2017, 07:51 AM	#5
zackattack91 Join Date: Dec 2016 Location: New Jersey Posts: 86	Stock main jet is 100 if it's the cvk style carburetor and the CVT belt style engine. Engine model 157qmj. Pilot jet is 35. That's what my 150cc coolster came with. Model 3150dx2. Not sure what engine yours has. __________________ 2016 Coolster 3150-DX2
	1

12-27-2017, 08:49 AM	#6
lonfu Join Date: Feb 2008 Location: kingman az Posts: 34	Depends on the elevation too. I had to reduce mine for my altitude of 3500 feet. __________________ 2007 4x4 300 buyang atv <br />2009 4x4 300 Buyang atv<br />1985 yamaha v-max/2009 fuel inj Yamaha Rhino
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06-27-2017, 12:58 PM	#2
Darth Racer Join Date: Apr 2016 Location: MD Posts: 558	More information needed the help guide you. Make Model Engine size type of use etc
	0

06-28-2017, 10:50 AM	#3
barnold Join Date: Nov 2016 Location: Chesterfield, MI Posts: 15	my bad. Kuzuma Falcon 150cc atv, normal trail riding.
	0

06-29-2017, 09:42 PM	#4
Darth Racer Join Date: Apr 2016 Location: MD Posts: 558	I don't have any experience with that size engine. Kind of surprised nobody has answered this for you. Bueller ... Bueller... anyone.. Bueller
	0