YM2000 REBUILD 2 cylinder Rebuild 2TR20A

Post your questions or problems you are haviing with your Yanmar tractor here.

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nothead14
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YM2000 REBUILD 2 cylinder Rebuild 2TR20A

Postby nothead14 » Thu Jul 04, 2019 8:52 am

After rebuilding,tractor was hard to crank.Adjusted valves every way possible. Tractor is blowing back through intake and smoking. Any ideas why? Thanks Ken

winston
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Location: North East Texas

Re: YM2000 REBUILD 2 cylinder Rebuild 2TR20A

Postby winston » Thu Jul 04, 2019 10:53 am

Got .006" clearance on all valves? Did you have the head reworked? Have ;you used starting fluid?

Aaron
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Re: YM2000 REBUILD 2 cylinder Rebuild 2TR20A

Postby Aaron » Fri Jul 05, 2019 1:33 pm

What was wrong with the tractor before the rebuild?

Did you set the valves like this?
https://www.hoyetractor.com/valve-set.htm

It is not uncommon for those 2cyl Yanmars to puff back out the intake like that when they don't start. I have seen that many times. Once they fired up they all ran just fine.


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