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Engine keeps hunting - Tecumseh Garden

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Clean or replace carb.

Posted on Sep 21, 2014

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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1 Answer

I have a 26 in craftsman snow thrower brand new engine runs erratically hunting


The choke does not have to be all the way open on a snow blower engine. The choke control has notches or steps for that reason. With the engine running adjust the choke one notch at a time until it smooths out. Once the engine warms up you may have to adjust the choke a notch or two to keep it running smoothly.

Mar 11, 2017 | Craftsman Garden

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Tecumseh engine surge/hunt fix


10 hp HM100 on a generator. hunting and surging since new. called for a J17 plug. install a J19 (hotter plug) to fix.
The J17 cannot keep the combustion chamber hot enough for a complete burn so it might seem like a carb problem (fuel starvation).

on May 17, 2010 | Garden

1 Answer

I have a redmax cht230 hedge trimmer. It keeps flooding out and it is hunting on idle. Is the carburator fixable or ia it going have to be replaced.


I am not familiar with your brand of machine, BUT... the "hunting" you describe is suggestive of extra air getting into the system between the carb and the engine block.

That would mean a gasket leak either between the carb and intake manifold [IF its got one], or between the intake manifold and the engine block intake port, or if no manifold, then between the carb and the engine block intake port.

OOPS!!!! Also, SOME engines may have a plastic intake manifold between the carb and the engine block, and sometimes these plastic "tubes" will develop stress fractures [cracks] allowing extra air to enter.

Aug 01, 2014 | Garden

1 Answer

Idle up down


hunting or surging ilde. name the 2 RPMS, low and high , is it hot or cold engine this issue.? 400rpm or 1000 or 2000 all are diff.causes.
no year, stated. so cant help.
but ill answer in the generic,
1: the ECU (got a carb,? )
the ecu controls idle speed at all times.
if not , there is a problem (you)
A: air leaks in the induction will make motor race at some point the ECU/ISC loses control. and hunts. trying hard to correct it.
b: egr stuck open idle too low, iSC cant correct it,, bad EGR.
c: engine EFI running way too leak starving for fuel so it hunts for 2 reasons < ISC hunting, and lean does that.
lean is gross power loss and opening throttle bogs the engine.
so is double bad. ISC makes it worse,

all this breaks down to 2 reasons.
1: ISC bad. in some way (gummed up. or restricted inside)
2: bad fueling or air leaks. vacuum leaks.

try answers , the hot cold question and the 2 speeds, of the hunt.
lowest rpm and highest of the hunted range of RPM.

Nov 23, 2013 | Honda Civic Cars & Trucks

1 Answer

I replaced the governor diaphragm in my 2h in my hj47 1984 ute and now the engine is hunting at idle between 650 and 860 rpm, it doesn't matter if it is cold or warm. Engine doesn't hunt at hi


You may have this posted in the wrong product category. Please select another category appropriate to the problem and re-post the problem so the correct expert will see and respond to the question..
This is for car and truck problems related to factory installed systems not add on aftermarket systems.
This post can't be removed or moved, please re-post the question in the correct product category. Thanks

Oct 11, 2012 | Cars & Trucks

1 Answer

When Nissan fb15 losing power in drive and or switches off engine completely when in drive or reverse. Also when when in Park and when you rave the engine sometimes hunts, what is the problem?


have you checked the fuel filter for restrictions. if its plugged up, engine will not get enough fuel to keep it running properly.

Aug 16, 2012 | Cars & Trucks

1 Answer

8 hp tecumseh on coleman generator not running at a constant rpm (galloping)


The carburetor is hunting for the right balance because it is dirty. You will have to remove it to clean it thoroughly. That is the proper way to resolve it, but if you may want to try to add a carburetor fuel injector fuel additive to the tank and run it out. It may help to stabilize the hunting when the engine is under load. The only way to see is to try it, if you are not ready to tackle a carburetor. I have seen this trick work on my lawn mower engine. It greatly minimized the problem on my engine. Keep in mind the ultimate fix is the rebuild of the carburetor.

I hope this helps.

Aug 05, 2011 | Tecumseh Horizontal Tiller Engine 8 Hp, 1"...

4 Answers

At idle the engine revs up and down


engine lite on? would ck to make sure there is plenty of coolant in system. low coolant may cause idle hunting. also could have a vacuum leak or air intake restriction. ck air filter

Nov 30, 2008 | 2000 Volvo V70

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