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Starts then loses fire, then won't start again
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Bayouboy63
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PostPosted: Tue Jun 12, 2018 7:11 am    Post subject: Starts then loses fire, then won't start again Reply with quote

Now it won't start at all. Turns over good. It was starting and would run 1min or 5 hrs but it's like someone would turn the ignition off and all it does is spin. Ignition wire at the new coil shows 12.6 volts but no spark in (clear) distributor cap. 1972 type II 1600 in fiberglass buggy. This problem just started, been riding this buggy for 2+ years
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vwracerdave
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PostPosted: Tue Jun 12, 2018 7:35 am    Post subject: Re: Starts then loses fire, then won't start again Reply with quote

Replace the clear dist cap with a good quality Bosch cap. Those transparent things are complete junk and should not even be sold.
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Bayouboy63
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PostPosted: Tue Jun 12, 2018 8:03 am    Post subject: Re: Starts then loses fire, then won't start again Reply with quote

vwracerdave wrote:
Replace the clear dist cap with a good quality Bosch cap. Those transparent things are complete junk and should not even be sold.


Ok, that's helpful.

I put it to see the spark.
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Wetstuff
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PostPosted: Tue Jun 12, 2018 9:31 am    Post subject: Re: Starts then loses fire, then won't start again Reply with quote

Given you have three posts, Boy, you might wanna listen to someone with 12,000.

Jim
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Bayouboy63
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PostPosted: Tue Jun 12, 2018 10:37 am    Post subject: Re: Starts then loses fire, then won't start again Reply with quote

Wetstuff wrote:
Given you have three posts, Boy, you might wanna listen to someone with 12,000.

Jim


Yep. Helpful again. I have a Bosch 009 with electronic compu fire in it, I put the clear cap just to see. No fire, Bosch cap back on it now, still no fire....No need to be an ass about it!!! Thanks again.
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Q-Dog
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PostPosted: Tue Jun 12, 2018 11:58 am    Post subject: Re: Starts then loses fire, then won't start again Reply with quote

My guess would be either the compufire module or the coil have failed. There are instructions all over the internet describing how to test a coil. I have no idea how to test a Compufire. Maybe install points and see if it runs?

That clear distributor cap is unreliable ... there are lots of reports of them failing.
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Dale M.
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PostPosted: Tue Jun 12, 2018 3:31 pm    Post subject: Re: Starts then loses fire, then won't start again Reply with quote

Put a test lamp on negative (#1) terminal of coil... Attach other side of test lamp to ground....

Spin up engine with starter, if test lamp flashes off/on/off/on/off/on distributor and coil are good.... IF it does not flash coil may have open winding on primary side, or electronic module is not being trigger by magnet or module is fried...

One of these can be your new best friend...

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YDBD
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PostPosted: Tue Jun 12, 2018 8:37 pm    Post subject: Re: Starts then loses fire, then won't start again Reply with quote

Had the compufire module in mine just go bad about 10 years ago...went back to points, no problems. Sometimes they just fail.
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