carb explotion, backfire and running on one piston when going slow
Thread Starter
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Road Master
Joined: Jul 2009
Posts: 849
Likes: 13
From: Santo Domingo, Dominican Republic
carb explotion, backfire and running on one piston when going slow
This is a strange one... if I go slow (less than 30mph) on 2nd or 3rd gear for like a 2 minutes I start to get small carb explosions, backfire on the exhaust and running on one piston! If I get it up to 50-60mph then everything runs smooth. The longer I stay going slow the longer it need to clear up but it will.
So whats wrong?
PS:
I had a lot of carbon buildup on the cylinder, if I don't find whats wrong and keep using it like this will it get all dirty again inside the jugs?
So whats wrong?
PS:
I had a lot of carbon buildup on the cylinder, if I don't find whats wrong and keep using it like this will it get all dirty again inside the jugs?
Thread Starter
|
Road Master
Joined: Jul 2009
Posts: 849
Likes: 13
From: Santo Domingo, Dominican Republic
This morning I took it for a small ride and no problem until I got to a traffic light, after 60 secs the light turns green and the problem started right away!
So, how do I check for an intake leak?
loose or bent pushrods??? how can this be the cause of this problem? keep in mind that my mechanics skills are better than average but not to technical, mostly I'll read and ask from what happens to me and my friends.
BTW. I have change the plugs a week ago and nothing got better.
So, how do I check for an intake leak?
loose or bent pushrods??? how can this be the cause of this problem? keep in mind that my mechanics skills are better than average but not to technical, mostly I'll read and ask from what happens to me and my friends.
BTW. I have change the plugs a week ago and nothing got better.
Stellar HDF Member
Joined: Apr 2009
Posts: 3,039
Likes: 11
From: Northern Ontario
This morning I took it for a small ride and no problem until I got to a traffic light, after 60 secs the light turns green and the problem started right away!
So, how do I check for an intake leak?
loose or bent pushrods??? how can this be the cause of this problem? keep in mind that my mechanics skills are better than average but not to technical, mostly I'll read and ask from what happens to me and my friends.
BTW. I have change the plugs a week ago and nothing got better.
So, how do I check for an intake leak?
loose or bent pushrods??? how can this be the cause of this problem? keep in mind that my mechanics skills are better than average but not to technical, mostly I'll read and ask from what happens to me and my friends.
BTW. I have change the plugs a week ago and nothing got better.
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Cruiser
Joined: Dec 2011
Posts: 158
Likes: 1
From: Salem,MA
Same symptoms, I bought a set of new spark plug wires bought from an indy,and ended up removing electronic ignition and going back to points ,only to find when I put the factory wires back on bike ran perfect.Just a thought
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Seasoned HDF Member
Joined: Nov 2009
Posts: 15,705
Likes: 22,720
From: Farmington ,MS
This is a strange one... if I go slow (less than 30mph) on 2nd or 3rd gear for like a 2 minutes I start to get small carb explosions, backfire on the exhaust and running on one piston! If I get it up to 50-60mph then everything runs smooth. The longer I stay going slow the longer it need to clear up but it will.
So whats wrong?
So whats wrong?
So when it is doing this, are you getting any smoke out of the exhaust? Do you have an aftermarket ignition? First order of business is a compression test as stated earlier.