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bus708


Location: Maryland
Joined: Jul 24, 2010
Points: 322

Shaving Techumseh cylinder head
Original Message   Jun 29, 2011 7:38 pm
I have a Techumseh HMSK 80.  I An thinking of milling .020 off my head for more compression and hopfully more power. What can I exspect if I do this?  I'm trying to make it a 9-10 hp engine or at least increase the torque.
This message was modified Jun 29, 2011 by bus708
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mml4


Snow is good,
Deep snow is better!


Joined: Dec 31, 2003
Points: 544

Re: Shaving Techumseh cylinder head
Reply #3   Jul 1, 2011 2:37 pm
bus708 wrote:
Thanks for the reply. What do you use to check the rpm? how do you adjust the gov?


I bought a cheap tach off of ebay. One leg goes to ground and the other wraps around the plug wire.It also has a mode that acts as an hour meter. There is another type that vibrates when you hold it near the head. When I was a kid and used them for model airplane engines they were sold under the name "Vibra Tach". Briggs makes a similar product today. As far as setting the carb you need to look at the Carb section in the tecumseh medium block engine repair manual which can be found on line if you do a google search. Advice: Do your research and due diligence BEFORE you start playing with the engine.It will be time well spent. Good Luck, Marc

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