Techumseh Snowblower Surging


Old 02-21-05, 03:18 PM
J. C. Stevens
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Techumseh Snowblower Surging

I have a 139 CC Tecumseh Snowblower that is surging. So far I have taken the Carb apart and cleaned and blew it out. Drained and replaced Gas and replaced the plug. Any idea what I've missed or what I should try next?

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Old 02-26-05, 10:05 PM
Join Date: Feb 2005
Location: Michigan
Posts: 335

on the carb right before the engine there may be a piece of metal that can rotate 45 degrees connected to butterfly valve in the carb there should be a wore going from something by the fly wheel to that piece of metal. that helps regulate the rpms
Old 02-27-05, 10:33 PM
Join Date: Jan 2005
Location: 5353'57.39" N 12244'13.58" W
Posts: 189

If you can remove the surge at high speed by applying some choke--guess what? Not enough fuel. That means the carb is blocked somewhere--First open the main jet more----if that fails----try opening the idle jet more (on the side) that might smooth it out. If not--still dirty.

Old 02-28-05, 10:18 AM
puey61's Avatar
Join Date: Apr 2004
Location: Upstate New York
Posts: 3,224
JC and all concerned/curious:
Look for this subject, started by JC Stevens, in the ATV's, Snowmobiles, etc. forum.

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