Nc30 misfire

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NGneer
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Bike owned: x3 NC30,Matchless G80s AJS16ms
Location: Köln
Re: Nc30 misfire

Post by NGneer » Wed May 23, 2018 3:31 pm

Oli, swapping out the HT leads and checking agian seems like an (easy) Logical step. If nothing else it should help with the fault diagnosis process if it doesn't solve the problem. If you don't have a spare set, I have the old HT leads and caps from my Project and can chuck those in the postif it helps out.

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bikemonkey
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Bike owned: 92 NC30, 90 VFR750
Location: Oxfordshire
Re: Nc30 misfire

Post by bikemonkey » Wed May 23, 2018 9:42 pm

Thanks for that Ian, I think I have some on my racking from the cb750's.

I'll look tomorrow as I had a few beers tonight.
Priorities!

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NGneer
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Re: Nc30 misfire

Post by NGneer » Wed May 23, 2018 10:08 pm

bikemonkey wrote:
Wed May 23, 2018 9:42 pm
I'll look tomorrow as I had a few beers tonight.
Priorities!
Good skills :mrgreen:

Give me a shout if you find that you do need them

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bikemonkey
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Re: Nc30 misfire

Post by bikemonkey » Thu May 24, 2018 6:56 pm

Well I think I've found the cause.

I was having a look at how I could replace the ht leads, taking the cap off etc, and noticed that one of the caps was absolutely filthy inside.

So I pulled the cap out of the rubber sheath and gave it all a good clean.

I think the dirt was getting in the way of a good clean connection between the cap and plug.

I'm still going to get new leads as a back up, but I think once the bike is back together I'll either book a dyno session to confirm or deny my ''fix'' or take the bike to a private stretch of road...


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