No spark on front cylinder, going crazy, diagnositic all checks out - Honda RC51 Forum : RC51 Motorcycle Forums
 
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post #1 of 5 (permalink) Old 02-18-2017, 06:22 PM Thread Starter
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Unhappy No spark on front cylinder, going crazy, diagnositic all checks out

Hi Guys,

this forum appears to be our last resort. THERE'S NO SPARK ON FRONT CYLINDER ONLY

Here's what has been tested so FAR.
Swapped ECU
Swapped CDI
CHECKED CONTINUITY on all connections between them all

Don't believe the pickup coil can cause only 1 cylinder to spark but not sure 100% sure since I haven't swapped it.
Also most forums have pointed to CDI and it may be possible the one i swapped is also bad but that's seems crazy ...

Thanks SO MUCH!!
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post #2 of 5 (permalink) Old 02-18-2017, 06:24 PM
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swap ignition coils and see if the issue migrates to the rear cylinder.


the front coil is a total asshole to get at though, be warned.
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post #3 of 5 (permalink) Old 02-18-2017, 07:57 PM Thread Starter
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all of that was done,

I have entire parts bike and swapped everything from the ignition system but the pickup coil.

thanks
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post #4 of 5 (permalink) Old 02-19-2017, 10:34 AM
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Check the crank pick up. You have 2 behind the LHS side cover. You can check the pick up(pulse generator at the red plug on LHS of engine next to the cylinder head. Peak voltage when cranking. Minimum voltage seen should be 0.7 volts.

Disconnect the grey connector at the ECM before checking.

Hope that helps

Last edited by Rob H; 02-19-2017 at 10:55 AM.
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post #5 of 5 (permalink) Old 02-19-2017, 11:05 AM
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Here is a page from the manual.
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