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Aq 151A Intermittent spark from coil when hot

dazk14

Contributing Member
"1986 AQ 151A cuts out after l

"1986 AQ 151A cuts out after long rides ~1/2hr.

After letting the engine sit for ~15+minutes it will restart and run flawlessly.

I have finally traced it to no spark from the coil. Swapped in an auto yellow accel and same results(runs, then cuts out ~1/2hr).

Coil was hot as h*ll and when I swapped back to original Bosch coil - great spark.

Is there a coil that I can buy for my rig that won't overheat and shut down?

Any help would be appreciated, Thanks!"
 
"The primary coil resistance s

"The primary coil resistance should be around 3 ohm. If you measure around 1.5 ohm between the + and - leads, then you have the wrong coil for your application.

Try to get a 3 ohm coil with internal resistor."
 
Thanks EL P.

Is there a br


Thanks EL P.

Is there a brand or model that you would suggest?

Cost is not an issue - looking for something bullet proof - just tired of breaking down...

Mike
 
"Thanks again El P.

The boa


"Thanks again El P.

The boats runs 5000rpm @ 16MPH(minimum planing speed
thumbs_down.gif
) so I need a coil that can take a beating.

Max speed is ~18mph at 5400rpm.

Mike"
 
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