Yamoto 70cc LONCIN motor Problems
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Well I have had the Yamoto 70cc for about a month now. I am starting to have some strange engine nosies. I had broken the motor in properly according to the yamoto owners manual. I am starting to get a tapping from the engine. It sounds like one of the valves but I have checked the valve clearance and it is acceptable. Once the motor is warmed up is does go away a little, but it can still be heard. I am also getting a noise from the motor when you start to decelerate from moving. You can speed up and then let off and just befire you come to a stop you hear a couple of knocks. Almost like a chain slapping up against something. If you just rev the engine it does not do it, you have to get it moving and then stop.
Does anyone have a detail service manual for the LONCIN 70cc engines that Yamoto uses? I have ordered the suplementary manual from Yamoto for the 70cc but there is no details about the motor. I would just like to know how to check for clutch wear and how to adjust the valve timing chain.
--Dave
Does anyone have a detail service manual for the LONCIN 70cc engines that Yamoto uses? I have ordered the suplementary manual from Yamoto for the 70cc but there is no details about the motor. I would just like to know how to check for clutch wear and how to adjust the valve timing chain.
--Dave
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KimSJoh
Polaris Ask an Expert! In fond memory of Old Polaris Tech.
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07-18-2015 07:20 PM
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