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Greetings: I have a Tecumseh HM80 mounted on a 1980 Ariens rear-tine rototiller. The engine is not original, but one of the newer style EPA / California approved carbs. This machine works an acre or two each season. The engine surges, and when I try to adjust the speed, it either runs too fast, or stops. I know I have put it out of adjustment. Now I need a place to start from. Mark from California

Submitted: 35 days and 6 hours ago.
Category: Small Engine
Value: $17
Status: CLOSED
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Optional Information

Make: Tecumseh
Model: HM80

Already Tried:
I've tried to adjust speed, but have not touched governor. I have checked the online Tecumseh owner manual, but have not seen any real adjustment help. The engine surges and races pretty fast unless tilling ground.

Accepted Answer

This Service manual is for your engine and it will lead you to everything that you need to know.

 

http://www.cpdonline.com/692509.pdf

 

Look at chapters 3 and chapters 4

 



Edited by James W on 10/18/2009 at 4:47 AM

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Expert: James W
Pos. Feedback: 97.4 %
Accepts: 
Answered: 10/18/2009

Small Engine Technician

7 years as Mechanic & Parts Manager for Brother who has Owned Lawn & Garden Repair shop for 35 years

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