So the kid was riding yesterday when it all of the sudden lost power. I was able to milk it into the garage. Now...

On jack stands, you have to feather the gas, until you get mid - range then it's runs off fine.

On the ground, it just bogs and won't go at all.

You can hear the big toward the end of the video.

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Service the clutch's.
Do a compression test.

 

Compression tested at 120 psi cold this morning. I do clutch today and see
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Just put spark plug tester on it and turned it over... It has weak, intermittent spark in the low RPM range. Gonna pick up a new plug and try that I guess.

 

Did you get into the clutch's??

 

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I swear I posted a reply.... Guess it disappeared in cyber space. Surprisingly, a new plug seems to have made a huge difference... It seems to be back to normal... It definitely didn't act like a plug issue to me...

 

Clutch's need serviced periodically. Glad it's running.

 

Is that just s matter of checking the Rollers and adding a touch of grease.

 

Pretty much, yes. Rollers should have no flat spots. The rear clutch bearings should be checked also.