On start, sputtering / backfire? Help!
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Stage II
Joined: Jun 2012
Posts: 2
Likes: 0
From: Toledo, Ohio
On start, sputtering / backfire? Help!
I'm in need of some good advice. I recently bought a 94 Dyna Glide and the past 4 rides have been experiencing this problem.
On cold start
Pull choke, pull throttle a few times, start and let run for good 5-7 minutes with choke full open.
When I take out on the road the engine starts running real choppy. Sounds like its hitting, hitting, hitting then backfire, hitting hitting hitting then backfire.... Then after a couple miles it runs great!
I'm a little lost and would appreciate any feedback.
Thanks,
On cold start
Pull choke, pull throttle a few times, start and let run for good 5-7 minutes with choke full open.
When I take out on the road the engine starts running real choppy. Sounds like its hitting, hitting, hitting then backfire, hitting hitting hitting then backfire.... Then after a couple miles it runs great!
I'm a little lost and would appreciate any feedback.
Thanks,
Road Captain
Joined: Mar 2012
Posts: 637
Likes: 3
From: Iowa
1st I would either try leaving the choke in either longer or pushing it back in sooner to see if that helps. Also try pulling it out 3/4 or 1/2 way out instead of all the way out. Every bike is different just guessing here.
Cruiser
Joined: Apr 2012
Posts: 174
Likes: 0
From: Beaumont
I have a '98 and unless the engine is real nice a and warm it will do that. I usually let mine warm up at least 10 minutes or until the top of the head is real warm to the touch. I live on the gulf coast so it's pretty warm in the mornings, the cooler it is outside the longer it will take. You gotta love a carb'd engine.
Yeah, you are explaining a cold lean condition. My scoot used to take forever to warm up and smooth out, the Mikuni & a proper tune with the build fixed that, choke it 1/2 way out for a minute tops, then on my way. Take it easy for the first few miles then I ride as normal.
Might need to fatten up your idle air mixture as well
Might need to fatten up your idle air mixture as well
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