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4 mil dune port high rpm issue


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sonofsand- im actually using the standard br8es plugs wit the lil cap off so it fits into the new plug caps. i cant fit solid tip plugs in or a regular plug with the small cap on top for that matter. gap is still at .018 and i didnt even gap the spark pllug at all. is it possible yours was having that same issue awhile back due to the cap? i remember i pmed you about my prob awhile ago. just food for thought.

 

surfrjag- thanks for the flyhweel tip i didnt know about that. i love this forum there is so much to learn and good people here

 

 

OK, thanks.

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Whos your DADDY!! LOL glad you found the problem, those damn boots and that topend break up cost a buddy of mine about 2 grand chasing the problem with a local shop a few years back!! At least he ended up with a 421 cub when he was done!! LOL Thank god for good forums like this one!!

 

Z

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most shops anywhere exept for the site sponsors on this forum are clowns. when i had a tranny problem first it was the shift shaft. nope. then they had to spilt the cases ect ect. they are out for one thing...... thats $ and they get it. its not right at all but hey thats the truth. i bet that the caps would of been the last thing they replaced on my shee if i took it to the shop. from now on a site sponsor is getting my engine if i cant fix it myself. im taking my shee for a good ride tomorrow so ill give you guys a update about the plug caps fixing my problem

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ok guys a update.... took her for a hr or 2 ride and shes running great. reving to the moon! no rev limiter effect... just a crisp clean scream. i hope this thread helps anyone who has a problem like this in the future. $6 for plug caps and running great. who would of know :jesterlaugh:

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  • 2 years later...

Ok I am having a very similar issue. Did you try swapping the plug wires around before? I have, and it still seems to not hit as hard on the left cylinder. Does not rev clean etc. mine seems to do a lot like that video you posted.

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