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  1. 30 wt

    Shop & Garage
    I cleaned up this 50cc motor and got it started but after a minute or less the motor stops because the plug is fouled with crankcase oil and I have to drain the expansion chamber. Anybody know what causes this?
  2. intro

    Hey everyone thanks for having me. I make some street bike parts and am a dirt rider from way back without that much experience. I've had some Maico's and a lot of brands really but never did any major engine work on a 2 stroke. I hooked up here trying to get some help with a YZ50...