2006 YZ85 won’t start

Yamaha YZ 85 discussion forum:


2006 YZ85 won’t start

2006 YZ85 won’t start 
Hans said 2026-03-10 07:30 
 
My son’s 2006 does not want to start. It has new top end and bottom end. New Montessori VR4 Reed Valve and intake, New plug. The Carb has only been cleaned but appears to be good. When kicked with the choke on and if given a little throttle it will just go pop, pop pop 2- 4 times. What is the compression supposed to be on this bike 150? My son has done most of the work on the bike top end and the bottom end was supposed to have been done when I purchased it. I am curious about the carb as well. Does the 06 and 07 have the same carb with the tubes looping over the top from one side to the other? Any help would be appreciated. 
 
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