Slight Throttle Issue
Thread Starter
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Road Captain
Joined: Aug 2013
Posts: 668
Likes: 34
From: New Jersey
Agreed, cable adjustment is where I'd start.
I'm also running the ISO grips and I've always felt the larger diameter of the grips made the throttle more sensitive, the diameter of the cable channel is larger which gives more cable pull for the amount of throttle grip rotation. At least that's my theory
There have been a couple of threads of people installing the ISO's and noticing the same thing; cable adjustment needed to be accurate and the throttle was more sensitive and they had to adapt to it. I like how sensitive the throttle feels compared to the stock grips.
Twospot, I keep my cables adjusted so there's basically zero freeplay at the grip. Be certain the cables are not so tight that they'll be pulled if you move the bars lock to lock.
Two things: if you are too tight on the throttle cable the idle surges when you move the bar lock to lock; if you are too tight on the return/idle cable the throttle sticks or will be sluggish returning to idle.
I'm also running the ISO grips and I've always felt the larger diameter of the grips made the throttle more sensitive, the diameter of the cable channel is larger which gives more cable pull for the amount of throttle grip rotation. At least that's my theory
There have been a couple of threads of people installing the ISO's and noticing the same thing; cable adjustment needed to be accurate and the throttle was more sensitive and they had to adapt to it. I like how sensitive the throttle feels compared to the stock grips.Twospot, I keep my cables adjusted so there's basically zero freeplay at the grip. Be certain the cables are not so tight that they'll be pulled if you move the bars lock to lock.
Two things: if you are too tight on the throttle cable the idle surges when you move the bar lock to lock; if you are too tight on the return/idle cable the throttle sticks or will be sluggish returning to idle.
Extreme HDF Member
Joined: Feb 2015
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From: Galt's Gulch - MI
Seems very odd your throttle won't return with the bike off. They're an either works or won't sort of deal, my throttle snaps back without any issues, bike running or off. Did you lubricate the cables when you had the grip off? I use Teflon lubricant on the cables a couple of times a year when I readjust them to keep them working smoothly. It sounds like something is binding in either the cables or the switch housing.
Thread Starter
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Road Captain
Joined: Aug 2013
Posts: 668
Likes: 34
From: New Jersey
Seems very odd your throttle won't return with the bike off. They're an either works or won't sort of deal, my throttle snaps back without any issues, bike running or off. Did you lubricate the cables when you had the grip off? I use Teflon lubricant on the cables a couple of times a year when I readjust them to keep them working smoothly. It sounds like something is binding in either the cables or the switch housing.
Extreme HDF Member
Joined: Feb 2015
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From: Galt's Gulch - MI
This is what I've used for years on my throttle cables on my sport bikes, track bikes, and HD's; I get it at Lowe's. I have such a sense something is binding, it's either in the throttle cables or the switch housing...
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Joined: Jun 2014
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From: NW Ohio
I use Dri-Slide. It's a moly or graphite base (I can't remember) suspended in a solvent. Probably mineral spirits. It's really thin. Flows everywhere then the solvent evaporates and leaves a lube film. Includes a nice long needle applicator that works great for cables.
Only thing I don't like is that it can make a mess and stain if you get it on leather or fabric.
Only thing I don't like is that it can make a mess and stain if you get it on leather or fabric.
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Road Captain
Joined: Aug 2013
Posts: 668
Likes: 34
From: New Jersey
Two Lowes so far and neither have it. I'll buy this or CG's suggestion DriSlide off of Amazon I guess. Tonight I am going to pull the A/C and take the switch housing/grip apart and see if I can't figure this out. Was hoping to have something to lube the cables with when I took everything apart
Extreme HDF Member
Joined: Feb 2015
Posts: 10,907
Likes: 8,756
From: Galt's Gulch - MI
Two Lowes so far and neither have it. I'll buy this or CG's suggestion DriSlide off of Amazon I guess. Tonight I am going to pull the A/C and take the switch housing/grip apart and see if I can't figure this out. Was hoping to have something to lube the cables with when I took everything apart
Adjust the cables for maximum slack; after you've lubed the cables start with the idle cable first. Adjust it so that there is no slack when the throttle is held closed and tighten the locknut. Adjust the throttle cable for your desired amount of freeplay at the grip and tighten the locknut. Check operation; hopefully your grip will start snapping back cleanly like it should
Thread Starter
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Road Captain
Joined: Aug 2013
Posts: 668
Likes: 34
From: New Jersey
Can't find it? Wow, glad I stocked up; that was my go-to chain lube. It does help if you can see the throttle body as you adjust the cables.
Adjust the cables for maximum slack; after you've lubed the cables start with the idle cable first. Adjust it so that there is no slack when the throttle is held closed and tighten the locknut. Adjust the throttle cable for your desired amount of freeplay at the grip and tighten the locknut. Check operation; hopefully your grip will start snapping back cleanly like it should
Adjust the cables for maximum slack; after you've lubed the cables start with the idle cable first. Adjust it so that there is no slack when the throttle is held closed and tighten the locknut. Adjust the throttle cable for your desired amount of freeplay at the grip and tighten the locknut. Check operation; hopefully your grip will start snapping back cleanly like it should
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Thread Starter
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Road Captain
Joined: Aug 2013
Posts: 668
Likes: 34
From: New Jersey
Thanks for all your help as well CG! I may have to stop there to grab some.