Snowchaser
ArboristSite Operative
I would much rather rebuild and clean out a quality factory carb than chuck it and buy a chicom pos, but theres no fixing that factory carb.
Well, the second part of my reply, where I said about the carb still needing cleaning still stands.Do you think that is why it will run once day and not the next?
the machine work and porting on the chinese engine actually look pretty good.
I really do not think that is the issue.
I agree with Cookies. I have 2 170s and the carbs are very sensitive to blended ethanol fuel. Our fuel supply in KY is junk. jmho OTsimply get a new carb
170 always runs rich, most people cut firewood with them here in uk or as a garden saw so they may not see as much wide open throttle thus burning clean. I have repaired a good few of these and all has been run on cheap oil and pump petrol. Very choked up with carbon. You cant tune them there are no high and low jets just a tick over adjustment which from memory is a left hand thread. If it were me I would upgrade to a better saw.
you can get aftermarket carbs for under 20 bucks for the 170 that are fully adjustable with the majority saying it makes the little saws run much better.170 always runs rich, most people cut firewood with them here in uk or as a garden saw so they may not see as much wide open throttle thus burning clean. I have repaired a good few of these and all has been run on cheap oil and pump petrol. Very choked up with carbon. You cant tune them there are no high and low jets just a tick over adjustment which from memory is a left hand thread. If it were me I would upgrade to a better saw.
Ahhh...the pinched tit. Always trouble!While apart, remove the boot and look at it. Sometimes that little tit gets pinched.
Take the original carb apart and put up a few pics of it.
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