yfz boggin problem?

[yungun]

okay when im riding it first its fine, but then after about 20 min. i holeshot with a couple friends. sit in 2nd gear, rev up, drop clutch, then it bogs for about 1 second, then takes off. and everytime afterward besides tha next day, then just starts over again. what could be causing this?

[yamaha_maniack]

try the zip tie mod:

http://www.youtube.com/watch?v=tzsBrNhX52g

This should work for all stock carburetors from the models 2004 up to 2008 or the 2009 as long as it isnt the 450r..

Hope this helps, good luck

[Toadz400]

What year is your quad? Mods? Elevation? Temperature? Jetting? Can't quite help you until we get some information.

[yungun]

Originally posted by Toadz400
What year is your quad? Mods? Elevation? Temperature? Jetting? Can't quite help you until we get some information.
well all my mods are in my signature. stock carb. rejetted after full system. it just started recently. i am gonna do the ziptie mod, but it wouldnt explain why it starts after about of an hour after trail rideing hard. i live in florida so its probably 75-80 degrees on average

[yfzrider690]

Could also be tht your valves are out of spec. I have heard of peoples quads acting like yours is once they get warmed up. When is the last time you checked them.

[Toadz400]

Originally posted by yungun
well all my mods are in my signature. stock carb. rejetted after full system. it just started recently. i am gonna do the ziptie mod, but it wouldnt explain why it starts after about of an hour after trail rideing hard. i live in florida so its probably 75-80 degrees on average

I have signatures disabled because there are too many members with ridiculously long ones.

I would say checking your valves would be a good place to start.

[XCRacer236]

the zip tie is a cheap wrong way to fix it. it can be solved 99% by jetting. HOW though, i am not sure. there is a lot of shops that build motors that would know more.

[Toadz400]

Do a search on YFZCentral for the leak jet. This usually cures the problem. The leak jet is a commonly overlooked jet that is just as important as the other ones.