1996 Helix 16k miles Starts but dies within 30 sec.

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1996 Helix 16k miles Starts but dies within 30 sec.

Postby Brotherbob » Wed Sep 11, 2019 7:02 pm

After the first stall, I waited 10 sec, and it will now run for 60 sec. and stall. Wait 10 more sec, and now it will stay running but will take 15 min to warm up and smooth our to idle speed.
Exhaust smells on the rich side, but plug looks normal. Cleaned and tested the SE valve unit OK. Compression test reads 100 PSI. Spec. is 213 +/- 28. Compression second test increased to 125 PSI adding a teaspoon of oil to cyclinder.
When warmed up, can reach 55 MPH ok. Seems to have plenty of power, and good acceleration. At shutoff, it will backfire once occasionally.

Any ideas will be appreciated. I am thinking of rebuilding the carburetor next.

Brotherbob
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Re: 1996 Helix 16k miles Starts but dies within 30 sec.

Postby zozman » Thu Sep 12, 2019 12:22 am

Did you at any time remove the carburetor inulator (intake) boot?


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87 & 98 Helix
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Re: 1996 Helix 16k miles Starts but dies within 30 sec.

Postby Brotherbob » Thu Sep 12, 2019 7:57 am

No! but the previous owner did have the carburetor out about three years ago in an attempt to clean it.

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