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Got a 1989 650 wildcat ,The engine bogges under a load, mid range and top end is good. Just put new cank seals in the engine, checked the compretion 120lbs in each cly. changed the coil and plug wires, clean the carbs and still runs the same. The engine idles fine and stars right up, any information will help thanx.
 

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I would check your belt deflection the way your manual says to do, and make sure your belt isnt worn. Also may want to check and see that everything in the drive train moves freely.

Polaris is my way out - Other people just use a door.
 

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Make sure the clutch is working properly. It sounds like the clutch might be upshifting too soon.

RtkatZL8
2001 ZL800
Delta IIs
Power Breather
MBRP Silencer
 
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