Hesitation off Idle
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Road Captain
Joined: Aug 2014
Posts: 628
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From: Trim Town
Hesitation off Idle
2011 Road Glide TC. All engine mods are listed in my signature. The throttle body is stock. I've had the bike tuned by two different dyno tuners here in my area and neither has eliminated this problem. Actually I don't think either tuner was able to reproduce the hesitation when on the dyno. One possible important clue. This always happens when the bike is hot. The hotter the worse it is. If the bike is cold, just getting warmed up it does not happen.
So here is what happens- Sitting at idle say at a red light. When starting to take off engine will cut out/hesitate pop-pop backfire sometimes. I can pull in the clutch and rev it and it goes away, but this hesitation isn't right. Also say slowing down considerably to make a right hand turn. No throttle, while making the turn, then as exiting the turn I roll the throttle and again hesitation, pop-pop etc. It starts firing normally after the hesitation but like I say it's not right.
This always happens when the bike is well warmed up or outright hot. It's sometimes 110 degrees here in Phoenix area and that's when it gets really bad.
Any comments?
So here is what happens- Sitting at idle say at a red light. When starting to take off engine will cut out/hesitate pop-pop backfire sometimes. I can pull in the clutch and rev it and it goes away, but this hesitation isn't right. Also say slowing down considerably to make a right hand turn. No throttle, while making the turn, then as exiting the turn I roll the throttle and again hesitation, pop-pop etc. It starts firing normally after the hesitation but like I say it's not right.
This always happens when the bike is well warmed up or outright hot. It's sometimes 110 degrees here in Phoenix area and that's when it gets really bad.
Any comments?
Elite HDF Member
Joined: Aug 2013
Posts: 3,789
Likes: 277
From: Hawkeye state
2011 Road Glide TC. All engine mods are listed in my signature. The throttle body is stock. I've had the bike tuned by two different dyno tuners here in my area and neither has eliminated this problem. Actually I don't think either tuner was able to reproduce the hesitation when on the dyno. One possible important clue. This always happens when the bike is hot. The hotter the worse it is. If the bike is cold, just getting warmed up it does not happen.
So here is what happens- Sitting at idle say at a red light. When starting to take off engine will cut out/hesitate pop-pop backfire sometimes. I can pull in the clutch and rev it and it goes away, but this hesitation isn't right. Also say slowing down considerably to make a right hand turn. No throttle, while making the turn, then as exiting the turn I roll the throttle and again hesitation, pop-pop etc. It starts firing normally after the hesitation but like I say it's not right.
This always happens when the bike is well warmed up or outright hot. It's sometimes 110 degrees here in Phoenix area and that's when it gets really bad.
Any comments?
So here is what happens- Sitting at idle say at a red light. When starting to take off engine will cut out/hesitate pop-pop backfire sometimes. I can pull in the clutch and rev it and it goes away, but this hesitation isn't right. Also say slowing down considerably to make a right hand turn. No throttle, while making the turn, then as exiting the turn I roll the throttle and again hesitation, pop-pop etc. It starts firing normally after the hesitation but like I say it's not right.
This always happens when the bike is well warmed up or outright hot. It's sometimes 110 degrees here in Phoenix area and that's when it gets really bad.
Any comments?
Thread Starter
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Road Captain
Joined: Aug 2014
Posts: 628
Likes: 0
From: Trim Town
Engine mods are as follows-
Patrick Racing Headwork, 10.5/1 pistons, 106in S&S Jugs, Andrews 55HG gear drive cams, Ness Big Sucker AC, V&H True Duals with High Output Slip-ons, Power Commander tuner.
Grand HDF Member
Joined: Dec 2007
Posts: 4,999
Likes: 55
From: Bay Area
Maybe an intake leak? Mine had a hesitation when at a stop light when I tried to take off when hot. Took it back to my tuner and he said show him what its doing and of course it wouldn't happen. than it finally did it in front of him, it wheezed and popped when blipping the throttle. He put it back on the dyno and I think he added a little fuel off idle. Made a 500 mile trip in 100* heat and it ran good. He did say that a better tuning can be done if I put the 02 sensors back in and install a TTS Mastertune.
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