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Engine starts right up without fail.
When under power seems that cylinders 3 & 5 will drop out randomly.
The WOT will spin 5500 RPM but will drop to 50-5100 RPM.
At all speeds this will occur, slow at idle speed 1400 drops to 10-1100.
Totally random when and for how long it occurs.
What I have done.
Had my local mechanic take a crack at it. He couldnt figure it out.
He bought two new ignition coils for 3 & 5. He broke the carbs down to check jets and reported no probs.
Compression is good on all cylinders.
He finally said he thought it was the CDI.
I bought a used CDI and swapped it myself. The engine does the EXACT same thing.
I check the Pulser coil, charging coil, ignition sensor all resistances read within acceptable ranges.
Any other ideas would be appreciated.
Thanks,
Keith
When under power seems that cylinders 3 & 5 will drop out randomly.
The WOT will spin 5500 RPM but will drop to 50-5100 RPM.
At all speeds this will occur, slow at idle speed 1400 drops to 10-1100.
Totally random when and for how long it occurs.
What I have done.
Had my local mechanic take a crack at it. He couldnt figure it out.
He bought two new ignition coils for 3 & 5. He broke the carbs down to check jets and reported no probs.
Compression is good on all cylinders.
He finally said he thought it was the CDI.
I bought a used CDI and swapped it myself. The engine does the EXACT same thing.
I check the Pulser coil, charging coil, ignition sensor all resistances read within acceptable ranges.
Any other ideas would be appreciated.
Thanks,
Keith
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