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Knoxville, TN
US
rucka356
10/14/2018 11:46am
10/14/2018 11:46am
Edited Date/Time
10/19/2018 10:35am
This is my kx80, has probably 15 minutes on it. I bought a used rebuilt bottom end and had cylinder replated and fresh piston and rings. Got it out this morning to ride and started up fine and then stalled out while idling. Kickstarter wont move and this is what piston and cylinder look like. cylinder feels good and smooth.
The Shop
You should always center the crank in the cases before assembling the top end.
This could be the reason why the bottom end is tight.
If possible make sure the main bearing are also seated correctly.
Hope this helps.
Piston looks like possibly ran with straight gas vs mix or pulled air through LH crank seal?............
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