Planet Minis

rough rider · 08-14-2008, 08:10 AM

Hey, I have a 04 crf70 with 88cc big bore kit with race head and stroker kit installed, it rips above 1/4 throttle but runs rich at idle up to 1/4 throttle, I have the smallest pilot jet installed a 12.5, could the float height be to high causing a rich condition at idle, anybody have problems with the vm26 Mikuni carb. Help.

jRob409 · 08-14-2008, 09:14 AM

That carb is way to big for a 88 in my opinion. I run a 20mm on my TB88 racehaed.

rough rider · 08-14-2008, 09:30 AM

Well it's really a 108cc because of the stroker kit installed so it should handle a vm26 ok.

jRob409 · 08-14-2008, 11:23 AM

woops sorry I didnt see that until now that it was a strocker. I have a 24mm on my 108. Mine ran ok with the 26 when I put it on but it didnt have the throttle response that I wanted. If I remeber right I couldnt get the low end ot run right either. My advice would be a 24mm Kiehin and a diff intake manifold.

rough rider · 08-14-2008, 11:38 AM

Yea I was afraid that carb might be to big but a lot of the kits come with that carb so I think I'll play with it a little longer, if worse come to worse I'll get the 24mm carb, Thanks.

PrerunninF150 · 08-14-2008, 11:43 AM

Might need a smaller main. That jet effects 1/4 throttle a lill too

jRob409 · 08-14-2008, 02:38 PM

Quote:

Originally Posted by rough rider

Yea I was afraid that carb might be to big but a lot of the kits come with that carb so I think I'll play with it a little longer, if worse come to worse I'll get the 24mm carb, Thanks.

Thats kinda what I thought when I put mine together. Cyclerider showed me the light and I am alot happier with my setup now.

08-14-2008, 08:10 AM	#1 (permalink)
rough rider PM Newbie Join Date: Aug 2008 Posts: 3	VM26 carb problem Hey, I have a 04 crf70 with 88cc big bore kit with race head and stroker kit installed, it rips above 1/4 throttle but runs rich at idle up to 1/4 throttle, I have the smallest pilot jet installed a 12.5, could the float height be to high causing a rich condition at idle, anybody have problems with the vm26 Mikuni carb. Help.

08-14-2008, 09:14 AM	#2 (permalink)
jRob409 2nd Gear Member Join Date: Nov 2004 Location: NE Kansas Posts: 391	Re: VM26 carb problem That carb is way to big for a 88 in my opinion. I run a 20mm on my TB88 racehaed.

08-14-2008, 09:30 AM	#3 (permalink)
rough rider PM Newbie Join Date: Aug 2008 Posts: 3	Re: VM26 carb problem Well it's really a 108cc because of the stroker kit installed so it should handle a vm26 ok.

08-14-2008, 11:23 AM	#4 (permalink)
jRob409 2nd Gear Member Join Date: Nov 2004 Location: NE Kansas Posts: 391	Re: VM26 carb problem woops sorry I didnt see that until now that it was a strocker. I have a 24mm on my 108. Mine ran ok with the 26 when I put it on but it didnt have the throttle response that I wanted. If I remeber right I couldnt get the low end ot run right either. My advice would be a 24mm Kiehin and a diff intake manifold.

08-14-2008, 11:38 AM	#5 (permalink)
rough rider PM Newbie Join Date: Aug 2008 Posts: 3	Re: VM26 carb problem Yea I was afraid that carb might be to big but a lot of the kits come with that carb so I think I'll play with it a little longer, if worse come to worse I'll get the 24mm carb, Thanks.

08-14-2008, 11:43 AM	#6 (permalink)
PrerunninF150 PM Newbie Join Date: Aug 2007 Posts: 25	Re: VM26 carb problem Might need a smaller main. That jet effects 1/4 throttle a lill too

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