Don’t Make This Expensive Mistake Rebuilding Your Saws!

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And lower rpm right.
Well RPM is only relative to the finish on the crank shaft. RPM eats seals when they get dry or melts them from excessive heat and barely any lube like sheilded bearings. Four cylinder case pulses increase like in Harley Vtwin. Not sure if they have spring backed seals in all of those. I'm sure the new stuff does. Seal updates are always a winner.
 
Funny, this video literally popped up in my youtube feed this morning. Now I come here, and here it is again lol.
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