Mwl Posted September 6, 2023 Report Share Posted September 6, 2023 (edited) Beta evo 250 has been running rough.i changed the piston and rings and noticed the crank was oily. I have changed crank seals.an easy job.the bike smoked for a while.its now cleared and the spark plug is looking a more normal colour. I was thinking new evo 300 because i want low down proper power. But now i have it.lol A job worth doing. Edited September 6, 2023 by Mwl Quote Link to comment Share on other sites More sharing options...
lineaway Posted September 7, 2023 Report Share Posted September 7, 2023 Well I have ridden Beta's since 1990. Never did just seals, usually the mains are going bad to need seaks. Good luck. Quote Link to comment Share on other sites More sharing options...
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