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-   -   Throttle sticks wide open.. (https://www.superhawkforum.com/forums/general-discussion-30/throttle-sticks-wide-open-25014/)

LoPing78 03-23-2011 06:21 PM

Throttle sticks wide open..
 
Before anyone goes screaming "use search function" I already have.. Tried "stuck throttle, throttle stuck, sticky throttle, and just throttle alone" No findings.. on to my point if anyone can help..

Failed MD inspection for amongst other things the throttle sticking for a few seconds when held wide open.. I checked online for some resolutions and tried the easy fix first.. Picked up some cable lube with the little syringe thing and squirted some down.. At first it seemed to have helped.. a few hours later now however, it seems worse.. It won't click back to normal with out me helping it along.. Not sure what to do at this point.. I have a few weeks until my 30day temporary registration runs out and I'm not the most technically savy so I'm not sure I'm going to be the best at taking the whole tank off and getting to the carbs and all that stuff.. Thanks in advance guys..

Syclone 03-23-2011 07:34 PM

make sure your throttle cable doesn't have any weird bends or tight spots in it

slabm7 03-23-2011 09:04 PM

Just some easy idea

- Check your grip and make sure its not rubbing on the bar ends or throttle cable housing
- pull your grip off and put some grease between the clip on and throttle tube, the throttle tube may be rubbing on the clip on.

I don't think it would be a problem in the carb, I think worst case scenario you might have to replace your throttle cable.

motogomojo 03-23-2011 09:11 PM


Originally Posted by slabm7 (Post 296771)
Just some easy idea

- Check your grip and make sure its not rubbing on the bar ends or throttle cable housing
- pull your grip off and put some grease between the clip on and throttle tube, the throttle tube may be rubbing on the clip on.

I don't think it would be a problem in the carb, I think worst case scenario you might have to replace your throttle cable.


+1 check bar ends

poppazuti 03-24-2011 12:28 AM


Originally Posted by slabm7 (Post 296771)
Just some easy idea

- Check your grip and make sure its not rubbing on the bar ends or throttle cable housing
- pull your grip off and put some grease between the clip on and throttle tube, the throttle tube may be rubbing on the clip on.

I don't think it would be a problem in the carb, I think worst case scenario you might have to replace your throttle cable.

+2 on the throttle tube. Had a sticky throttle on my old zx7 and that cleared it right up.

evines 03-24-2011 07:25 AM

I think the above posts just about covered it. Mine used to stick and it was just the grip getting pinched between the bar end and throttle cable housing.

When I did my front end swap, I had too tight a bend in my throttle cables during one trial position, which resulted in the throttle sticking. I repositioned the throttle cables and everything was back to normal.

If it ends up being something other than what we already mentioned, I'd be curious what it was . . .

Erik S. 03-24-2011 07:34 AM

Here's another possibility, inside the throttle housing, make sure the cables or throttle tube aren't sticking in there.

The grip is usually the culprit. My friends 2008 CBR600RR wouldn't return to idle, I knew he had just changed grips. Slid them away from the bar ends, and all was as it should be.

LoPing78 03-24-2011 11:02 AM

Sweet.. thanks for the info! I did just put new grips on and I had to cut the ends for them to fit on. They're definitly not rubbing on either end. I pulled off the cable housing last night applied cable lube.. seemed to help for a moment or two then it went back to sticking only worse than before.. I'll check between the clip on and throttle tube.. Any recommendation on what sort of grease to use there?

Thanks again for all the input.. Pulling the tank off and getting into that whole area is not in my best interest with out having someone experienced help me along.. I fear I'd do more damage than good.. spill gas all over the garage, blow something up.. etc..

slabm7 03-24-2011 07:00 PM


Originally Posted by LoPing78 (Post 296817)
Sweet.. thanks for the info! I did just put new grips on and I had to cut the ends for them to fit on. They're definitly not rubbing on either end. I pulled off the cable housing last night applied cable lube.. seemed to help for a moment or two then it went back to sticking only worse than before.. I'll check between the clip on and throttle tube.. Any recommendation on what sort of grease to use there?

Thanks again for all the input.. Pulling the tank off and getting into that whole area is not in my best interest with out having someone experienced help me along.. I fear I'd do more damage than good.. spill gas all over the garage, blow something up.. etc..

Just use whatever grease you have available, no special kind required. Clean the crap off the clip on. Cover the clip on in a nice thin layer of new grease. Don't use and kind of penetrant (WD40).

7moore7 03-24-2011 07:23 PM

If that doesn't work, try taking the cables off if you can get a screwdriver in through the frame. Detach them from the grips and the carbs (again- I can't remember if one can do this while they're on the motor).

Then try to move the cables in the housing- if they move fine when not attached to the bike, it's in your grip, a kink in the line, or on your throttle at the carbs. If they don't move very well, squirt a bunch of WD-40 down the cables and move them up and down and repeat this a couple of times. I did this to mine and a bunch of grime came out. If you have a compressor, blow the WD-40 out but if not just let it drain as best as possible. Then put cable lube back in and hopefully that will work...

Just throwing out ideas...

LoPing78 03-25-2011 04:37 AM


Originally Posted by 7moore7 (Post 296876)
If that doesn't work, try taking the cables off if you can get a screwdriver in through the frame. Detach them from the grips and the carbs (again- I can't remember if one can do this while they're on the motor).

Then try to move the cables in the housing- if they move fine when not attached to the bike, it's in your grip, a kink in the line, or on your throttle at the carbs. If they don't move very well, squirt a bunch of WD-40 down the cables and move them up and down and repeat this a couple of times. I did this to mine and a bunch of grime came out. If you have a compressor, blow the WD-40 out but if not just let it drain as best as possible. Then put cable lube back in and hopefully that will work...

Just throwing out ideas...

Thanks man.. I think I'm going to have to disconnect the cables and do what you said. I have no idea how to do this.. Take front fairing off and just go to town I guess haha.. I tried squirting more cable lube down the housing last night.. guy at the shop said that once you start lubing in there that debris can become dislodged and gather in one spot thus causing further sticking. Weather isn't cooperating either.. I'll let you know once this issue is solved once and for all.. It's very frustrating.

7moore7 03-25-2011 08:35 AM

Rt side fairing comes off, then if you follow the cables in they attach to a circular guide thing that rotates. THAT part is mounted to the carbs with two screws- if you take those two screws off, the whole things comes loose and you can pull your cables out. After that part is off it's pretty easy to pull them off the guide attached to your handlebars (which you also have to remove two screws to get to.


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