Hello all, I sure hope ya'll can help me out. I'm going to the UP of Michigan in the middle of next month and my bro up there is trying to get his 96 Yamaha kodiak 400 running right. my bro is a pretty good mechanic but he is kind of new to 4-stroke motorcycle engines.
He is going to contact original owner to find out what has been done to it if anything
Here's the low-down as I understand it.
The ATV was originally purchased by bro's dads friend, older guy (60's) for hunting, two years ago bro's dad bought it cheap, it was running rough so it was stored untill recently when bro got it from his dad.
ATV has 1500 adult miles on it, in good shape
After it sits all night with the fuel petcock off it will start right up but then it starts running poorly and if shut off is hard to start again.
He has noticed some gas accumulation in the airbox.
Bogs down or will not run when reved or attempting to move.
Sparkplug is very black, good plug, good gap.
I ordered and sent him (poor guy doesnt have internet:laugh:) a rebuild kit and a manual. I am thinking the choke o-rings are messed up or the float is bad and its flooding badly, thus the gas in the airbox. DANGER!
Does anyone know what the correct weight for one of these floats is?
All Ideas/comments welcome!