Strange Problem at Highway Speed
Seasoned HDF Member
Joined: Feb 2007
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From:
Is there garbage in the tank ?
Almost reads like garbage in tank floating towards fuel valve and then causing a restriction.
Bike stops for a while or you get a fill-up and garbage floats away from fuel valve until gravity and suction make it float towards fuel valve again.
Almost reads like garbage in tank floating towards fuel valve and then causing a restriction.
Bike stops for a while or you get a fill-up and garbage floats away from fuel valve until gravity and suction make it float towards fuel valve again.
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Extreme HDF Member
Joined: Jul 2015
Posts: 12,499
Likes: 7,511
From: Edmond, OK
Originally Posted by im
Is there garbage in the tank ?
Almost reads like garbage in tank floating towards fuel valve and then causing a restriction.
Bike stops for a while or you get a fill-up and garbage floats away from fuel valve until gravity and suction make it float towards fuel valve again.
Almost reads like garbage in tank floating towards fuel valve and then causing a restriction.
Bike stops for a while or you get a fill-up and garbage floats away from fuel valve until gravity and suction make it float towards fuel valve again.
Club Member
Joined: Apr 2011
Posts: 5,816
Likes: 7,846
From: SE Louisiana
The petcock screen is the fuel filter, the tank should be drained and the petcock removed and cleaned every so often as maintenance,
This is also a good time to replace the fuel hose, especially if it's old, the ethanol will eat up the inside of the hose and put rubber flakes in the carb, and could be the cause of your problem.
Might want to replace the crossover hose also.
I use the Gates Barricade injection hose, resistant to ethanol, and doesn't kink as easy as the regular Barricade fuel hose
https://www.gates.com/us/en/fluid-po...-000000-000007
This is also a good time to replace the fuel hose, especially if it's old, the ethanol will eat up the inside of the hose and put rubber flakes in the carb, and could be the cause of your problem.
Might want to replace the crossover hose also.
I use the Gates Barricade injection hose, resistant to ethanol, and doesn't kink as easy as the regular Barricade fuel hose
https://www.gates.com/us/en/fluid-po...-000000-000007
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Extreme HDF Member
Joined: Jul 2015
Posts: 12,499
Likes: 7,511
From: Edmond, OK
Pulled petcock. Reset carburetor, gave it a topical cleaning, and retuned. Checked fuel that came out of tank. All looks good. Took it out and it runs like a million bucks again. Must have been the faintest of debris or just out of adjustment. I didn't spend much time tuning it after swapping the exhaust this last winter.
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,114
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From: Poolville
Pulled petcock. Reset carburetor, gave it a topical cleaning, and retuned. Checked fuel that came out of tank. All looks good. Took it out and it runs like a million bucks again. Must have been the faintest of debris or just out of adjustment. I didn't spend much time tuning it after swapping the exhaust this last winter.
Sounds to me you forgot to mention this in your first post..... Of coarse a different set of pipes is going to change the way a motor will perform...
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Extreme HDF Member
Joined: Jul 2015
Posts: 12,499
Likes: 7,511
From: Edmond, OK
Originally Posted by 98hotrodfatboy
[/b]
Sounds to me you forgot to mention this in your first post..... Of coarse a different set of pipes is going to change the way a motor will perform...
Sounds to me you forgot to mention this in your first post..... Of coarse a different set of pipes is going to change the way a motor will perform...
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,114
Likes: 7,638
From: Poolville
So what pipes did you take off and what did you put on? Looking at your sig it looks like an RB 2-1...
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Extreme HDF Member
Joined: Jul 2015
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Likes: 7,511
From: Edmond, OK
Originally Posted by 98hotrodfatboy
So what pipes did you take off and what did you put on? Looking at your sig it looks like an RB 2-1...
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,114
Likes: 7,638
From: Poolville
I though it was a pro stock.... They breath very well mid to upper range... Not the greatest down low... over 3k , is ok...
So what have you done to the motor to have the need for that pipe?
So what have you done to the motor to have the need for that pipe?
Last edited by 98hotrodfatboy; May 15, 2019 at 08:36 AM.