Clutch + sparks = not cool!!! help??

auji700triple

auji700triple

New member
Joined
May 2, 2005
Messages
1,023
Age
38
Location
Labrador City,Canada
K well this happend Just before my engine went, It was at 50% -100% trottle only when it happens.. once you get to 50 Or 100% throttle (100 =full 50 means half) it starts pouring out Sparks from the Left footwell... it was in the night when it happend so i notised them very well.. wasn't just a few, it was alot!! ALot of people told me they had the same thing happpen to them and the Same symptoms. He told me that theres a "SHIM" in your primary clutch, and it gets wore out and thats when the clutches are open to half to full throttle. thats wear metal on metal and sparks come from that.. he said a new shim is needed .. is this True.. Junior, Mr.viper, Turk, yamaholic22 you guys now??? i want to know what is causing the sparks.. i need to fix this!! my new engine is comingin, and i need it to be ready! thanks, anybody else with this experince?? :o| :o|
 
the primary clutch has nothing to rub against within itself, the only movement is axially (along the drive shaft)

if you saw the sparks at the footwell, I would guess the secondary is rubbing the frame or shield or something else somewhere????.


hmmmmmmmm
 
I dunno man, something is obviosly rubbing somewhere, but I couldn't tell you where, best to look for marks, if it threw up as much spark as you say, then it will have left a mark.
 
Look for lose or broken motor mounts, motor is twisting letting the clutch rub. Maxdlx
 
do u have electric start? ive seen problems where the starter will activate at certain rpms and catch the starter wheel on the primary...ive seen this happen before where it ripped the starter right off the case....
when the starter gear contacts the starter wheel on the primary..the sparks will fly...
 
Last edited:
Maybe the drive axle or jackshaft bearing . Is your speedo working OK, typical sign of a bad axle bearing.
 
hmm

i dont know, i dont think so... i found these 2 small pieaces under the Secondary. It looks like a Shim, or a ring of some sort. its Wore and in 2 pieaces. anyone know?? how much "play" is the secondary supposed to have? and how many shims are supposed to be in the secondary, i counted 3. maybe thats what caused it..? anyone??

The ring Or shim, whatever is left looks like its got a Natural Bend to them
like this ---> ) but not as much bend like that. hmm i have no idea!!!
 
Last edited:
Rancidjo just left my house and his 02 viper is doing the exact same thing. sparks are a flying at 3/4 to full throttle. we had his hood off and belt guard off and you could see them light up the night. sled was ratcheting a bit and making a "tinging" noise when the sparks would fly. we jacked up the rear of the sled, held it to the bar, and no sparks.
what ended up fixing it? he'll give more details tomorrow.
 
I have yet to tear into it but just wanted to know where to start looking. As blueballer said it will not happen when it is on the jackstand. It will not spark when you ease into the throttle and get up to speed. Only when I hammer on the throttle. So it is only under torque. I had the motor out so the clutches have been off. the motor mounts are tight, the center to center and offset look to be fine. My guess it is probably something rubbing when the motor moves under torque, however i do have the torque arm installed, will also check the bearings but they were good when I but it back together. Any other ideas? I will let you know what I find when I start looking at it, hopefully tonight.
 
Look at the backside of the secondary clutch, at the windage plate and little screws, see if they are rubbing on the bearing retainer bolts for the jackshaft, a incorrect spaced secondary clutch can open up and rub the bolts, it will definitely leave a mark there to see.
 
Have you checked directly above your left footwell?
I had wires rubbed through when I first got me srx.
If I remember right they were shorting out and sparkin like a bugger.Where the wiring plugs in behind the vents.
Just a thought.
 
If it sounds like it's ratcheting you might want to check and see if the primary is tight . That happened to mine last season . Thought the track was making that
sound , but it was ok . Then I checked the primary . went to pull it off and it didn't take much at all . Cleaned the shaft and bore of the clutch retightened noise went away . Something to check .
 
tore the clutches off last night, no signs of rubbing on the back or edges of either clutch. I noticed that the starter gear seemed easy to move by hand...not sure if this is normal. Wrapped electrical tape around the starter gear and spring....went out to test. Did 10 real hard runs...no spark or noise. Just about the chaulk it up to something not beieng tight enough or whatever and the removal of the clutches corrected it...but then did 2 more runs....and the sparks and noise were back again. Pulled it into the shop ripped the primary off and sure enough the tape was pretty much off of the starter gear, and there seemed to be a little bit of adhesive or something on the ring gear. So I am leaning towards the starter gear coming in contact with the ring gear. Tonight I am going to pull the fuse for the starter to see off it is getting actuated and coming out. If there is still sparks I will remove the ring gear to avoid contact. Hopefully that will correct it and I will work on the starter to fix the problem. This is my best guess at this time so we will see...will keep posted
 
Well I looked really close at both clutches last night. No real signs of rubbing. Still sparks and a bit of noise. Had them on and off a couple of times could not see anything wrong. I did notice I had a couple of small gouges in the sheeves of the primary. So just for the heck of it i changed the belt. Went out and hammered on it 15 times or so. no noise and I didn't see any sparks. The old belt does have a small groove on the side of it. Going to buff the gouges out, clean up the belt and clutches real good and try it again tonight. Do you guys think it is possible the belt either has something inbedded in it (I couldn't see or feel anything), or the gouges put a groove in the belt and the fibers in the belt are actually igniting when I hammer on the throttle. What are your thoughts? Like I said I will try again tonight to make sure this was the problem...it just seems a little wierd the the belt would throw sparks.
 
Any luck figuring this out??? I have the exact same problem it just started out of the blue on my 04 Viper. On a side note both of my limit straps are broken don't know if its a coincidence or not?







rancidjo said:
Well I looked really close at both clutches last night. No real signs of rubbing. Still sparks and a bit of noise. Had them on and off a couple of times could not see anything wrong. I did notice I had a couple of small gouges in the sheeves of the primary. So just for the heck of it i changed the belt. Went out and hammered on it 15 times or so. no noise and I didn't see any sparks. The old belt does have a small groove on the side of it. Going to buff the gouges out, clean up the belt and clutches real good and try it again tonight. Do you guys think it is possible the belt either has something inbedded in it (I couldn't see or feel anything), or the gouges put a groove in the belt and the fibers in the belt are actually igniting when I hammer on the throttle. What are your thoughts? Like I said I will try again tonight to make sure this was the problem...it just seems a little wierd the the belt would throw sparks.
Click to expand...
 
Is your jack shaft bearing riding loose on the shaft? I started to have something similar on my sx, and found that my set screws had backed out and the bearing was starting to go so at high speeds it started to spin on the shaft. I put a new bearing on and loctited the set screws. I also shimmed between the shaft and bearing, to take up any wear.
 
You must log in or register to reply here.


Back
Top