Throttle Stuck...

[kmk]

So I'm heading home today after work and when I try to slow down for the on ramp the bike is acting funny.

I get out on to the ramp shift for 3d and it winds way up... I know I didn't miss my shift that bad. I find I cant slow down, how great.... hit the kill switch, pull the clutch and coast to the side of the road. Now what I think. I fiddle with the throttle from full to closed and try to start it.. wont start. hold the throttle closed *hard* and try to start.. runs, but poor. I head home.

Get home crack open the throttle assembly, all looks good. Raise the tank, cables are fine, no debris, springs are still there and attached.. best I can tell.

It will open fine, but will not close completely, It is better now that I have working it back and forth but somethings not right. The panel reads that throttle position is at 20 when at "closed" and 96 WOT. Ideas?

Should note that it runs just over idle now.. (1000-1200) and runs crappy.. low pops from the exhaust and and god awful occasional noise at the new "idle" from the right side of the bike (please don't say CCT, please )

 

[03HiYoSilver]

Kmk,

Good thing you had a cool head and was able to control the bike.

Your condition sounds like the TPS is going bad. Did you do your Recall on this yet?

Here are some links that may assist you:

https://www.fjrforum.com/forum//index.php?s...st&p=127397

https://www.fjrforum.com/forum//index.php?s...mp;#entry148013

https://www.fjrforum.com/forum//index.php?s...3&hl=recall

https://www.fjrforum.com/forum//index...ic=10755&st=20

Hope this helps!

 

[Bustanut joker]

You haven't adjusted the cables have ya? I had mine a bit to tight and had similar problems awhile back.

No misfire mind ya, just a throttle that liked to stick

:jester:

 

[kmk]

Kmk,
Good thing you had a cool head and was able to control the bike.

Not my first stuck throttle... first time on this bike. Still exciting...

Your condition sounds like the TPS is going bad. Did you do your Recall on this yet?
Here are some links that may assist you:

https://www.fjrforum.com/forum//index.php?s...st&p=127397

https://www.fjrforum.com/forum//index.php?s...mp;#entry148013

https://www.fjrforum.com/forum//index.php?s...3&hl=recall

https://www.fjrforum.com/forum//index...ic=10755&st=20

Hope this helps!

I don't know if the previous owner replaced that part.. after reading it sounds like half the problem, I don't know how it can hold the throttle open... I have to read more on its location. I just want to touch back and say thanks for help.. was Googling for stuck throttle and FJR never thought to try TPS.

 

[johnny80s]

I had a similar problem with a sticky throttle. I had the cables replaced and that resolved it.

 

[kmk]

You haven't adjusted the cables have ya? I had mine a bit to tight and had similar problems awhile back. No misfire mind ya, just a throttle that liked to stick

:jester:

Bustanut, honored to have your reply and slightly scared at the same time....

No not prior to the event. I took the throttle apart at the handle bar to see if the throttle parts under the tank (don't know my part names) would snap closed.. no such luck, I reassembled the handle bar throttle parts.

The only thing that was changed was on Sunday I replaced the old Air filter, removed a mouse :angry2: , mouse nest :blink: and several little pink mice

 

[RadioHowie]

Should note that it runs just over idle now.. (1000-1200) and runs crappy.. low pops from the exhaust and and god awful occasional noise at the new "idle" from the right side of the bike (please don't say CCT, please )

Don't wanna be an alarmist, but YOU already said it. Rattley/crunchy noise from right side = bad.

How many miles on your Cerulean Battle Cruiser?

 

[Fred W]

Any chance that any mouse detritus got past the filter? Maybe some jetsam is holding the plates from closing all the way?

 

[Bustanut joker]

Jetsam, Flotsam, Son of Sam..... That's it! The Ghost in the Machine

:jester:

 

[RadioHowie]

I can't help but come back to KMK's "noise". I hate to be an alarmist, but if I heard unwanted noise from the right sight of the motor, I wouldn't run it again at least until I gave the CCT a slight counter clockwise twist to see if the plunger was fully extended and contacting the chain guide.

If it wasn't, I'd be calling Gary McCoy first thing in the morning.

edited to add:

Plus, the "runs crappy" and "low pops from exhaust" make me tend to believe the exhaust cam may have slipped one tooth. I DO NOT know how many teeth a cam on a Feej has to be off before "very bad things" happen, but a bike will run with a cam out of time by a tooth....although not run well.

 

[Geezer]

My first thought was that maybe the air filter failed and a chunk got digested. I didn't want to suggest that worst case possibility until you had tried some other options. However, now that you say you recently replaced the air filter, and you had mice, I suggest you pull it out and take a look. Clean that air box very carefully. Could be the mice chewed the old filter up some and stuff got past it that now worked it's way to the throttle bodies.

 

[kmk]

Umm judging by the added posts.. looks like I'm four-wheeling tomorrow The noise was very loud, grinding/rattling looks like I have to take it for a trip to the stealer and open my wallet. That noise just startled me, I herd it and I had flash backs to the posts on this board. Not good. (Sigh) I use my FJR to commute rain/shine and taking the car feels very, well winter..

Geezer, I will look, the filter was not damaged just very dirty/smelly (mouse pee stinks!esp mixed with gas smell) But its worth a look.

RadioHowie, 19600mi and was running strong.

Fred W, Any good way to look at that area with out fully taking things apart.. I'm mechanically inclined enough to know how mechanically inclined I am, and I'm not that mechanically inclined.

 

[JuiceMcGoose]

A story of a stuck throttle. 1969, my friends mom is heading south on the 405, San Diego Fwy, Orange County in a 1967 big block Chrysler station wagon. Some how, the throttle sticks wide open and all mom can think of is hit the brakes. Needless to say, those old drum brakes give it up in short order and mom finds herself locked in a run-away train. Not thinking clearly and not wanting to hit the other cars, which by now she is going over twice the speed of, she takes the Magnolia Ave southbound off ramp. When the ramp turns right, she goes straight, and with the help of road camber, literally flies completely over Magnolia Ave. and into the brush on the other side. Turns out she was fine, hardly a scratch. We never see the Chrysler again which Dad says was bent in the middle. We later wonder what it was like to see a Chrysler station wagon fly over a major street.

 

[RadioHowie]

noise was very loud, grinding/rattling looks like I have to take it for a trip to the stealer and open my wallet. That noise just startled me, I herd it and I had flash backs to the posts on this board. Not good. (Sigh) I use my FJR to commute rain/shine and taking the car feels very, well winter..\
RadioHowie, 19600mi and was running strong.

You wouldn't think 19.6K miles would be enough to "wear out" a CCT, but trust me, grinding/rattling is a tip-off of possible pre-catastrophic failure.

Do not...I repeat...DO NOT be tempted to "fire her up for a minute to see how she runs." You are tempting demons. I've been dead in the water for 6 months and only the unbelievable generosity of this forum has given me the first hopes to ride my Feej again since the motor grenaded.

Make sure you are 100,000% positive the CCT is functioning, the chain is tight, and the cams haven't slipped timing before you try to run it. If you DO take it to the dealer, make sure you make them understand you suspect a bad CCT and loose chain and if THEY attempt to crank it and airmail a set of valves, it's THEIR fault

CHECK THAT CCT AND THE CAM TIMING before you proceed.

Take it from someone with just a little catastrophic cam chain tensioner failure experience.

 

[kmk]

noise was very loud, grinding/rattling looks like I have to take it for a trip to the stealer and open my wallet. That noise just startled me, I herd it and I had flash backs to the posts on this board. Not good. (Sigh) I use my FJR to commute rain/shine and taking the car feels very, well winter..\
RadioHowie, 19600mi and was running strong.

You wouldn't think 19.6K miles would be enough to "wear out" a CCT, but trust me, grinding/rattling is a tip-off of possible pre-catastrophic failure.

Do not...I repeat...DO NOT be tempted to "fire her up for a minute to see how she runs." You are tempting demons. I've been dead in the water for 6 months and only the unbelievable generosity of this forum has given me the first hopes to ride my Feej again since the motor grenaded.

Make sure you are 100,000% positive the CCT is functioning, the chain is tight, and the cams haven't slipped timing before you try to run it. If you DO take it to the dealer, make sure you make them understand you suspect a bad CCT and loose chain and if THEY attempt to crank it and airmail a set of valves, it's THEIR fault

CHECK THAT CCT AND THE CAM TIMING before you proceed.

Take it from someone with just a little catastrophic cam chain tensioner failure experience.

Thanks RadioHowie, Looks like it get a trailer ride down to the shop.. Ill be sure to tell the shop what is suspected. So do we have guesses as to the total $$$$. Closest without going over wins.

 

[RadioHowie]

Thanks RadioHowie, Looks like it get a trailer ride down to the shop.. Ill be sure to tell the shop what is suspected. So do we have guesses as to the total $$$$. Closest without going over wins.

Just for diagnosis? A good shop tech should be able to test the CCT (without running the bike), pull the cam cover and confirm timing is okay in 1 1/2-2 hours. I guess $150 for diagnosis.

If the CCT needs replacing? And/or cam timing is off? Add another 2 hours. I think I could do it blindfolded by now.

Here's a thought....just have them replace the CCT without checking the cam timing, start it up, ruin the valves and a new cylinder head IS ON THEM! :assassin:

[SIZE=8pt](just kidding)[/SIZE]

 

[Zissky]

A story of a stuck throttle. 1969, my friends mom is heading south on the 405, San Diego Fwy, Orange County in a 1967 big block Chrysler station wagon. Some how, the throttle sticks wide open and all mom can think of is hit the brakes. Needless to say, those old drum brakes give it up in short order and mom finds herself locked in a run-away train. Not thinking clearly and not wanting to hit the other cars, which by now she is going over twice the speed of, she takes the Magnolia Ave southbound off ramp. When the ramp turns right, she goes straight, and with the help of road camber, literally flies completely over Magnolia Ave. and into the brush on the other side. Turns out she was fine, hardly a scratch. We never see the Chrysler again which Dad says was bent in the middle. We later wonder what it was like to see a Chrysler station wagon fly over a major street.

this comes to mind

 

[kmk]

Just for diagnosis? A good shop tech should be able to test the CCT (without running the bike), pull the cam cover and confirm timing is okay in 1 1/2-2 hours. I guess $150 for diagnosis.
If the CCT needs replacing? And/or cam timing is off? Add another 2 hours. I think I could do it blindfolded by now.

Here's a thought....just have them replace the CCT without checking the cam timing, start it up, ruin the valves and a new cylinder head IS ON THEM! :assassin:

[SIZE=8pt](just kidding)[/SIZE]

Do your rates go up or down when your blindfolded and when can I drop it off!

PS yes read the CCCTF a while back.. still have nightmares.

 

[RadioHowie]

Just for diagnosis? A good shop tech should be able to test the CCT (without running the bike), pull the cam cover and confirm timing is okay in 1 1/2-2 hours. I guess $150 for diagnosis.
If the CCT needs replacing? And/or cam timing is off? Add another 2 hours. I think I could do it blindfolded by now.

Here's a thought....just have them replace the CCT without checking the cam timing, start it up, ruin the valves and a new cylinder head IS ON THEM! :assassin:

[SIZE=8pt](just kidding)[/SIZE]

Do your rates go up or down when your blindfolded and when can I drop it off!

Ride it down to Fla. I'm taking off 9/23 to take Grumpy's motor out of his wrecked bike to put in my Feej so I'll be in "mechanic mode". Have lunch with me and Grumpy.....YOU'RE BUYIN"!