Motor missing when hot
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Stage II
Joined: Jul 2016
Posts: 2
Likes: 0
From: Wyoming
Motor missing when hot
Hi
Having a problem with my 03 Ultra Classic. I'm hoping someone has seen it before. The bike runs great in the morning but as the day heats up ( 90s )
the motor starts missing from time to time. It is getting worse so soon It will show itself but man I hate trying to push a Electra Glide home.
Having a problem with my 03 Ultra Classic. I'm hoping someone has seen it before. The bike runs great in the morning but as the day heats up ( 90s )
the motor starts missing from time to time. It is getting worse so soon It will show itself but man I hate trying to push a Electra Glide home.
Tourer
Joined: Dec 2009
Posts: 440
Likes: 7
From: wisconsin
Hi
Having a problem with my 03 Ultra Classic. I'm hoping someone has seen it before. The bike runs great in the morning but as the day heats up ( 90s )
the motor starts missing from time to time. It is getting worse so soon It will show itself but man I hate trying to push a Electra Glide home.
Having a problem with my 03 Ultra Classic. I'm hoping someone has seen it before. The bike runs great in the morning but as the day heats up ( 90s )
the motor starts missing from time to time. It is getting worse so soon It will show itself but man I hate trying to push a Electra Glide home.
Road Warrior
Joined: Nov 2014
Posts: 1,962
Likes: 140
From: NY
All the above are good suggestions.
Another thing to check is when the coil is on the way out when it heats up it can intermittently go open on cyl only causing misfire.
But bad plug wire ,resistor going bad in a sparkplug or plug itslef bad,poor elec connection on injector or when inj gets hot maybe its hanging up requiring a good cleaning (Chevron's Techron concentrated injector cleaner @ 1.5oz per gal fuel is good for that),intake leak or injector seal leak are often the cause of an intermittent misfire.
Happy motoring.
Scott
Another thing to check is when the coil is on the way out when it heats up it can intermittently go open on cyl only causing misfire.
But bad plug wire ,resistor going bad in a sparkplug or plug itslef bad,poor elec connection on injector or when inj gets hot maybe its hanging up requiring a good cleaning (Chevron's Techron concentrated injector cleaner @ 1.5oz per gal fuel is good for that),intake leak or injector seal leak are often the cause of an intermittent misfire.
Happy motoring.
Scott
Last edited by wscott; Jul 10, 2016 at 05:46 PM.
Thread Starter
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Stage II
Joined: Jul 2016
Posts: 2
Likes: 0
From: Wyoming
Thanks guys. Have new plugs and wires are on the way. Old wires have about 25000 on them so could be the prob. If not I have directions to go in now. Guess I'll throw money at it until I hit the prob. I need my road truck back. Thank again.
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Road Captain
Joined: Jun 2013
Posts: 671
Likes: 168
From: Ontario, Canada
I posted the part number for the injector pigtail somewhere on here if you need it. Just do a search.
Good luck.
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