78 Honda CB 125 S (J) discussion forum:

RE: 85 CB 125 s

RE: 85 CB 125 s

Richard Hinely said 2014-05-23 01:51

Check the timing of the points, and make sure the advance is working. Also check valve clearance. If too little, when they heat up the clearance closes up and it may loose compression through the valves. Also check gas tank vent is working for air to replace gas as it flows, and check gas flow.

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