Weird miss when not under load
Thread Starter
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Intermediate
Joined: Jun 2007
Posts: 29
Likes: 0
Yes it does miss when 2000 to 2500 in neutral. I think I got the Mechanic pointed in the right direction. A compression test should tell if valve guides are bad I would think. The bike only has 42,000 miles on it. I was sure hoping this had happened to more then just two bikes and someone figured it out.
Cruiser
Joined: Dec 2012
Posts: 136
Likes: 17
From: sandusky Ohio
Checked compression and was fine, both cyl's were within a couple of PSI. Don't remember the numbers, but I think it was 153PSI. Leek down was fine. Has 32K miles. I would think the valve seals are good. Not smoking or using oil. Cleaned the MAP sensor last year. No carbon buildup on intake valves. Not sure how my tuner can twek things. Yes, mine misses in neutral. I hate to keep throwing money and parts at it.
I noticed another post about the "cruse control surging and missing" and it sounds like they are having the same problem.
I noticed another post about the "cruse control surging and missing" and it sounds like they are having the same problem.
Last edited by skyhawk940; Apr 23, 2020 at 08:05 PM.
Cruiser
Joined: Dec 2012
Posts: 136
Likes: 17
From: sandusky Ohio
I would hate to take it to the dealer. They would charge an arm and leg and not fix it. Bring it back and we'll try something else and charge you another arm and leg...… Sounds like many have it. you would think someone knows what's wrong. Vacuum leak? How would I check that? FI, all of the intake air has to be accounted for.
Road Warrior
Joined: Aug 2014
Posts: 1,937
Likes: 320
From: Vancouver, WA
I would hate to take it to the dealer. They would charge an arm and leg and not fix it. Bring it back and we'll try something else and charge you another arm and leg...
Sounds like many have it. you would think someone knows what's wrong. Vacuum leak? How would I check that? FI, all of the intake air has to be accounted for.
Seasoned HDF Member
Joined: Jan 2011
Posts: 28,842
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From: Wisconsin, USA
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Thread Starter
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Intermediate
Joined: Jun 2007
Posts: 29
Likes: 0
Ron Not sure what the breather tubes are never heard of changing them could explain more. I had a intake manifold leak on my 91 EVO that drove me crazy. When the motor warmed up it would seal and run fine then when it was cool you had to put a lot of choke to it to get it to run. That was a easy fix when I finally found it.
Seasoned HDF Member
Joined: Jan 2011
Posts: 28,842
Likes: 16,582
From: Wisconsin, USA
Ron Not sure what the breather tubes are never heard of changing them could explain more. I had a intake manifold leak on my 91 EVO that drove me crazy. When the motor warmed up it would seal and run fine then when it was cool you had to put a lot of choke to it to get it to run. That was a easy fix when I finally found it.
https://partsfinder.onlinemicrofiche.../%20ENRICHENER
Breather tubes are rubber. Part 15 29476-99 BREATHER TUBE 1 3.49