Carburetor Ice??
Thread Starter
|
Supporter
Joined: Nov 2005
Posts: 1,366
Likes: 11
From: Ozark, AL
Carburetor Ice??
I have an '02 RK FLHR. I have had the the bike, apparantly, lean out causing backfiring on deceleration and popping at the carb on accelleration. This sounds like classic carb problems but it is intermittent. Commonalities between each occurance are 30-40 degrees, moisture ( either rain, drizzle or in one case dense fog), not noticed during accel after initial hesitation. I have pulled and replaced the plugs. They were black but had been firing. I checked the intake manifold for leaks with starting fluid nothing there. On each occasion after parking I have noticed water dripping from the air cleaner cover. Could this be icing on the air filter?
thanks,
Vern
'02 Road King FLHR
stage 1
SE slip ons
thanks,
Vern
'02 Road King FLHR
stage 1
SE slip ons
Seasoned HDF Member
Joined: Dec 2004
Posts: 7,934
Likes: 43
From: Bloomfield, NM
RE: Carburetor Ice??
At that temperature I guess you could get carb icing, although I have never heard of it in a bike. If your plugs came out black, that does not sound like a lean condition. Black is usually an indicator of a rich condition.
If you have water dripping from the air cleaner cover, you might just be getting water in the carb. If you think it's ice, just pull the air cleaner cover the next time it happens and see if there is ice on the filter element.
Sorry I couldn't be more help.
Regards,
Bill
If you have water dripping from the air cleaner cover, you might just be getting water in the carb. If you think it's ice, just pull the air cleaner cover the next time it happens and see if there is ice on the filter element.
Sorry I couldn't be more help.
Regards,
Bill
Thread Starter
|
Supporter
Joined: Nov 2005
Posts: 1,366
Likes: 11
From: Ozark, AL
RE: Carburetor Ice??
I need all the help I can get!! The water makes me think that it may be ice but I don't know. At warmer temps it starts and idles fine. I think if it was spark or fuel it would show up under more circumstances.
Vern
Vern
Stellar HDF Member
Joined: Nov 2005
Posts: 3,183
Likes: 836
From: KMHT KFMY
RE: Carburetor Ice??
it could very well be carb icing.
the european version of my jap bike actually passes coolant thru a tube that goes thru the 4 carb bowls to prevent this.
the plane I fly ( piper P28) has a duct that when activated draws warm air from the exhaust manifold to the carb air inlet.
for some reason american market bikes ( HD and the metrics/rice rockets) don't have a provision for this and you figure a darn good part of the USA gets cool from october to april.
the european version of my jap bike actually passes coolant thru a tube that goes thru the 4 carb bowls to prevent this.
the plane I fly ( piper P28) has a duct that when activated draws warm air from the exhaust manifold to the carb air inlet.
for some reason american market bikes ( HD and the metrics/rice rockets) don't have a provision for this and you figure a darn good part of the USA gets cool from october to april.
Road Master
Joined: Oct 2005
Posts: 1,034
Likes: 3
From:
RE: Carburetor Ice??
If it was carb icing, then the ice would be inside, past the backing plate and not out on the air filter element. What causes carb ice is the expansion of air in the carb venturi, which super-cools the moisture in the air. I would look for a vacuum leak, or check again for an intake leak.
Thread
Thread Starter
Forum
Replies
Last Post
leightmac
Exhaust System Topics
1
Jul 28, 2009 02:31 PM
golfblues
General Harley Davidson Chat
18
Jan 13, 2009 06:18 AM
