drive traiin issues for EVO
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Stage I
Joined: Jun 2010
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drive traiin issues for EVO
I have a Harley EVO engine with an S&S Super E Carb. I put Stabil in the tank before winter, shut off the tank and ran the carb out of gas and stored my bike inside (constant 60-70 degrees). This spring I was riding along the all of the sudden, the bike all but shuts down, loses most of the power and will only go about 35 MPH. I babied it for about 10 miles and all of the sudden it comes back at full strength. Nothing for a while and now its starting to backfire every now and then, but goes in to these very short spurts of lost power and near shutdown. Then all of the sudden, I'm back at full power again. Any thoughts will be greatly appreciated?
My next scenario relates to a problem I am having when I try to accelerate from a stop. The clutch seems to work fine, I let out the clutch, hop on the gas and the bike starts to shudder or buck. This happens in 1st through 3rd gear and sometimes in 4th. I have a 6 speed belt drive ultima transmission. Any thoughts will be greatly appreciated.
My next scenario relates to a problem I am having when I try to accelerate from a stop. The clutch seems to work fine, I let out the clutch, hop on the gas and the bike starts to shudder or buck. This happens in 1st through 3rd gear and sometimes in 4th. I have a 6 speed belt drive ultima transmission. Any thoughts will be greatly appreciated.
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
Hi Rob and welcome to HDF.
Reminiscent of problems I had a few years ago, which when the bike finally expired proved to be the ignition sender inside the conical timing cover. But it could be a variety of other things. Check your VOES and the small pipe to it, which can mess with the timing. The VOES is mounted under the gas tank on the bracket between frame and heads and has a short thin tube to the inlet manifold.
Other than that, check the basics, such as clean the carb float chamber, gas tank filter, to make sure there is no fuel supply problem. These thingsa can be a devil to chase down sometimes. Keep us posted!
Reminiscent of problems I had a few years ago, which when the bike finally expired proved to be the ignition sender inside the conical timing cover. But it could be a variety of other things. Check your VOES and the small pipe to it, which can mess with the timing. The VOES is mounted under the gas tank on the bracket between frame and heads and has a short thin tube to the inlet manifold.
Other than that, check the basics, such as clean the carb float chamber, gas tank filter, to make sure there is no fuel supply problem. These thingsa can be a devil to chase down sometimes. Keep us posted!
Road Warrior
Joined: Nov 2008
Posts: 1,595
Likes: 8
From: Vancouver Island British Colombia Canada
Hi Rob and welcome to HDF.
Reminiscent of problems I had a few years ago, which when the bike finally expired proved to be the ignition sender inside the conical timing cover. But it could be a variety of other things. Check your VOES and the small pipe to it, which can mess with the timing. The VOES is mounted under the gas tank on the bracket between frame and heads and has a short thin tube to the inlet manifold.
Other than that, check the basics, such as clean the carb float chamber, gas tank filter, to make sure there is no fuel supply problem. These thingsa can be a devil to chase down sometimes. Keep us posted!
Reminiscent of problems I had a few years ago, which when the bike finally expired proved to be the ignition sender inside the conical timing cover. But it could be a variety of other things. Check your VOES and the small pipe to it, which can mess with the timing. The VOES is mounted under the gas tank on the bracket between frame and heads and has a short thin tube to the inlet manifold.
Other than that, check the basics, such as clean the carb float chamber, gas tank filter, to make sure there is no fuel supply problem. These thingsa can be a devil to chase down sometimes. Keep us posted!
Road Master
Joined: May 2010
Posts: 931
Likes: 112
From: Oregon
Hi Rob and welcome to HDF.
Reminiscent of problems I had a few years ago, which when the bike finally expired proved to be the ignition sender inside the conical timing cover. But it could be a variety of other things. Check your VOES and the small pipe to it, which can mess with the timing. The VOES is mounted under the gas tank on the bracket between frame and heads and has a short thin tube to the inlet manifold.
Other than that, check the basics, such as clean the carb float chamber, gas tank filter, to make sure there is no fuel supply problem. These thingsa can be a devil to chase down sometimes. Keep us posted!
Reminiscent of problems I had a few years ago, which when the bike finally expired proved to be the ignition sender inside the conical timing cover. But it could be a variety of other things. Check your VOES and the small pipe to it, which can mess with the timing. The VOES is mounted under the gas tank on the bracket between frame and heads and has a short thin tube to the inlet manifold.
Other than that, check the basics, such as clean the carb float chamber, gas tank filter, to make sure there is no fuel supply problem. These thingsa can be a devil to chase down sometimes. Keep us posted!
+1 on this. Great power.........struggling..........great power........struggling..........Fuel filter or carb issue is where I would start. Stabil is nice but debris is debris!
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