Misfire and popping on startup cause - maybe - Honda CRF1000L Africa Twin Forum
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post #1 of 7 (permalink) Old 07-16-2019, 05:37 PM Thread Starter
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Misfire and popping on startup cause - maybe

about 4-5 thousand miles back, my '17 AT manual started popping and misfiring a bit on startup, but then would straighten out after being ridden just a short distance. Worse when cold.

Working on her 32K valve check, found one of the spark plug caps had developed a crack in the rubber and the screw that makes contact with the spark plug wire had corroded off, so some arcing must have been going on.

Only 32 bucks for a new one.. (:> Oh well.... Changing spark plugs as well, man, are THEY buried...

So if you have similar behavior... might be the reason...
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post #2 of 7 (permalink) Old 07-16-2019, 06:11 PM
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Good post, I'll keep this in mind for something to check when I dive into doing my valves.
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'17 Africa Twin, '14 CB500X, '82 MB5, '78 XL250s, '72 CB350K4
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post #3 of 7 (permalink) Old 07-17-2019, 06:15 AM
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Misfire and popping on startup cause - maybe

My 16 manual AT did this a couple times in the spring, while warming up i would hear a low pop but never more than one. I only have 5k on mine, Thanks for posting what you found


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post #4 of 7 (permalink) Old 07-17-2019, 10:56 PM
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Yea man, thanks for the info. Good post, great pics.

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post #5 of 7 (permalink) Old 07-22-2019, 06:40 PM
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CRF1000L My 2016 is in for the 16,000 mile valve check and the spark plug cap broke because it was rusted. It has been parked in my garage it’s entire life. I am extremely disappointed. I went the route of always taking it into the dealer for all the services I was supposed to. I can not believe such a great bike has such a bad issue. All I heard was how bulletproof the brand was supposed to be. Now, I want to get rid of it as soon as possible. This is obviously something that should have been recalled already.
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post #6 of 7 (permalink) Old 07-22-2019, 07:19 PM
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Quote:
Originally Posted by Psclontz View Post
CRF1000L My 2016 is in for the 16,000 mile valve check and the spark plug cap broke because it was rusted. It has been parked in my garage it’s entire life. I am extremely disappointed. I went the route of always taking it into the dealer for all the services I was supposed to. I can not believe such a great bike has such a bad issue. All I heard was how bulletproof the brand was supposed to be. Now, I want to get rid of it as soon as possible. This is obviously something that should have been recalled already.
It is kinda disappointing that it’s a corrosion issue, come on Honda, it’s a adventure class bike; water and dirt should be the norm - **** - on ANY bike water shouldn’t be a issue... Short of dropping it in water over the top of the gas tank..

Hmmm, I wonder if you can get a better aftermarket wires for them or have some made... ?
Lol some marine grade stainless braided waterproof ones would be sweet...
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Last edited by AT-Dragon; 07-22-2019 at 07:24 PM.
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post #7 of 7 (permalink) Old 07-23-2019, 08:29 PM
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Quote:
Originally Posted by AT-Dragon View Post
It is kinda disappointing that it’s a corrosion issue, come on Honda, it’s a adventure class bike; water and dirt should be the norm - **** - on ANY bike water shouldn’t be a issue... Short of dropping it in water over the top of the gas tank..

Hmmm, I wonder if you can get a better aftermarket wires for them or have some made... ?
Lol some marine grade stainless braided waterproof ones would be sweet...
Good idea of getting AM plug wires, ......for every AT owner. Make a nice upgrade with piece of mind.

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