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Antique Gas Engine Discussion

IHC M won't start

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Old 07-02-2005, 09:36:46 PM
Ihorse Ihorse is offline
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Angry IHC M won't start

I have had this 6hp--{M} for a couple years--older resto-[paint job]--Mag-and overstrike igniter---no way will it start--it has spark at the igniter---i checked with the igniter out and grounded--flipping while my friend--[very tired] cranked it--I think I generally know what to do--but not this time--
any help--??? I have a similar problem with a 6hp Galloway,
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Old 07-02-2005, 09:43:38 PM
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Byron Roberts Byron Roberts is offline
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Default Re: IH---[M] won;t start

DJ:: Belt it up..Same Mag as 1 1/2 .. they do use cranks.. ... Gets pretty scary.. Byron
Old 07-02-2005, 10:21:23 PM
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Ken Majeski Ken Majeski is offline
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Default Re: IH---[M] won;t start

Yes.... You have proved there is voltage at the igniter.... BUT is it there at the right time....???? Any engine with a low tension igniter and rotary low tension mag MUST have the Mag timed to the igniter.... There is a narrow window where the voltage is at peak and the igniter must snap at that point.. On the type M there are lines on the mag shaft and the outer bearing and they must line up when the igniter trips....
Ken Majeski, Ellsworth Wis.
Old 07-02-2005, 11:45:10 PM
Ihorse Ihorse is offline
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Default Re: IH---[M] won;t start

Thanks--I will ck the line up on the mag--then might belt it up ? What about the galloway 6hp--with a igniter and webster-it won;t run either--sparks on the bench--but no start up. good compression--and on time,

Old 07-03-2005, 03:20:31 AM
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John Hammink John Hammink is offline
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Default Re: IH---[M] won;t start

It's as Ken says, the timing of the mag and the ignitor is the most important thing for a good spark at the right time. See my timing page at:

But to be sure that your mag is in good order start the engine first on a battery and coil, that way you will always have a strong current and spark.

Second, check that there is a fuel mix in the carb, onces I had everything that was needed to start a six horse M, but I had to use my granny's glasses to see that little piece of dirt that sticks in the sprayer hole of the venturi tube.

When you have the engine running, you could switch it over to the mag and see if she can do the job. My experience is to set the needle valve at 10 o'clock, that's enough for first start.
Old 07-03-2005, 03:34:43 AM
BobRR BobRR is offline
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Default Re: IH---[M] won;t start

D.J. 2 things I can think of even though you probably already checked are they getting fuel? 2nd is your intake valve free?If so Ill take it! BobRR
Old 07-03-2005, 06:39:13 AM
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Default Re: IH---[M] won;t start

d,j,: If all else fails and it's set up right, try "FRESH" gas
Did you make a new friend today, and a lot. Paul - "OLDIHC"
Old 07-03-2005, 10:18:12 AM
Andrew Mackey Andrew Mackey is offline
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Exclamation Re: IH---[M] won;t start

Last but not least-is the igniter wet with fuel? The new gasoline will carry current under compression. You will get spark out of the engine, but not under compression! Clean off all carbon with electrical cleaner, or carb cleaner, and dry thoroughly. Tune the engine over with the igniter out to dry out the cylender. Especially with igniter engines, make sure you have fresh gas. Gas sitting in an open container loses 50% of its burning ability in 30 days, within 2 months, it probably will not burn!
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