garelli SS no spark

Ken Koehler /
kenko
Apr 17, 2019 04:15PM

I would appreciate any suggestions on troubleshooting my no spark problem.

Moped was just taken out of storage (2 yrs). Cleaned carb, added fresh oil/gas mix, new spark plug. when kicked to start--no spark.

Only thing that I can remember before storing was that it would run just fine until I came to a stop. Then, most times but no all, it would not hold the low idle. It would shut off. To prevent this shut off, I would keep alittle pressure on the throttle.

(rear tail light bulbs are good)

Please help! Thanks!

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Re: garelli SS no spark

Jonathan Eaton /
jbgt
Apr 17, 2019 06:39PM

Have you checked/cleaned the points?

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Re: garelli SS no spark

pat splat /
ggspeed
Apr 17, 2019 08:22PM

swiched to "on" flip it back n forth a few times

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Re: garelli SS no spark

Born to be WillD /
willd
Apr 18, 2019 10:31AM

First thought is points. Def clean em well. If it sparks now but weakly, clean em better. If still nothing my next would be Disconnect the kill wire so the power is straight from the engine to the coil and check, that omits any switch issues. Then start tracing back from boot to wire to coil to stator checking for power but I think it's just gonna be points

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Re: garelli SS no spark

Ken Koehler /
kenko
Apr 18, 2019 05:55PM

First, Thanks for the replies/suggestions. Still no spark.

I have cleaned the points using "Fred's Guide" instructions. After cleaning, I checked the gap. It seems to be smaller that the recommended .015. Is that part of the problem?

Question for willd. I have not done your suggested step 2. What/where is the "kill wire"?

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Re: garelli SS no spark

Ken Koehler /
kenko
Apr 21, 2019 01:26AM

FYI to all responders. Using the resources found on https://www.motorcycle-manual.com/garelli/

I have identified the problem area to be with the Run/Off switch. Will check for proper grounding tomorrow...

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Re: garelli SS no spark

Tim Taylor /
otistaylor
Apr 21, 2019 02:12AM

Ken; I looked at the resource you mentioned, and it looks great. I wonder if you (or others) know of a similar electrical troubleshooting guide for a Vespa Bravo. Thanks.

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Re: garelli SS no spark

Ken Koehler /
kenko
Apr 22, 2019 03:56PM

sorry. I do not but based on my experience, just keep searching, sometimes rearranging your search words. Its is probably "out there" somewhere.

Good luck.

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