Hockey390 Posted January 25, 2004 Report Share Posted January 25, 2004 I recently added FMF pipes, a set of used carbs (mine had stripped threads) and a twist throttle to my 87 shee. I got all of the moding done, went to start...nothing, figured out it had no spark, so then I thought back to when I hooked up my twist throttle. So finally I remembered a wire I unhooked that had no place to connect after I put on the twist. I check for spark with that wire hooked up to my old thumb throttle, and i got spark. So I figured i would just take that wire and plug it in, remove the peice off the thumb throttle, tape it up, and secure it in the frame. I did this and started her up. Had to use thrust quick start fluid but i got her running. Now the problem.. When she started up it reved REALLY high almost like i had it wide open, which i didnt, and then it would stall out. So i gave it gas and tried adjusting the idle screws which made no difference. I checked to make sure the carbs werent stuck open, which they werent.. Finally after a while of it being really high revved and having to give it some throttle to keep it going it stayed running on its own. So i started adjusting the idle screws some more and nothing changed it. NOW the odd part. My family came out and told me to shut it off because it was so loud, so I hit the kill switch.. and yes, it stays running... Confused, i turn the key to off.. Stays running... Took the key out, stays running.. Then i shut the gas off and it eventually died out.. The antifreeze was boiling and smoke was coming from the engine and where the pipes connect to the engine. I feel that it has something to do with that item i disconnected from the throttle, but I dont see how that would effect how it stayed running!?!?! My final thoughts on this are that it has something to do with the TORS. the carbs I bought had tape over the TORS plugs, so i left them unplugged. I had the TORS plugged in on my old carbs, so thats why i think that might be the problem. The plugs on the new carbs are different from my old ones so I have to do some wiring, but first I have to go to my other house to get my owners manual so I can work on this through the night. If you have any idea what is wrong, please reply... If you have thoughts as to what I should try... Please reply. Here is a picture of the unit I unplugged from my thumb throttle. I have no idea what it is... All that I know is that I need it to get spark. Quote Link to comment Share on other sites More sharing options...
Cotton eyed Joe Posted January 25, 2004 Report Share Posted January 25, 2004 That is the switch from your thumb throttle. It is used like this: If its connects, and the TORS switches in the carbs DO NOT the ignition is chopped. You have to either unplug the entire TORS unit located on the left had side under your gas tank, or cut the switch off the end of that and twist the wires together. I would think your idling uncontrollably is an air leak. Somehow air is getting in to the carbs, and running lean, thus the runaway condition though a super hot plug (from running lean from the air leak) or carbon deposits. Pull a plug and take a look at it. Quote Link to comment Share on other sites More sharing options...
Hockey390 Posted January 26, 2004 Author Report Share Posted January 26, 2004 So say this is the condition. I have the TORS unplugged at the point where the carbs are, and then the switch from the thumb throttle is plugged in, but removed from the thumb throttle and just left alone.. Should everything be go? Or should I plug the TORS in? I dont see how TORS would hurt me any, so I'm riging them so I can plug them back in. If this doesnt make any difference on either of my problems please let me know. So then why wouldnt I be able to turn it off? Is the air leak the only option? Or could it be related to the TORS.. Quote Link to comment Share on other sites More sharing options...
Hockey390 Posted January 26, 2004 Author Report Share Posted January 26, 2004 Forgot to mention that I also tried to get spark by just placing a screwdriver between the 2 prongs that are on the male connecter for that throttle peice I showed you. (There are 2 parts, the one running from ignition to a male connector, and the female connector running to the thumb throttle...I placed the screwdriver between the 2 prongs on the male side, which i thought would have been the same as twisting the wires together... But I got no spark.) Quote Link to comment Share on other sites More sharing options...
superchicken Posted January 26, 2004 Report Share Posted January 26, 2004 im thinking if you unplug the tors box from the under side of your gas tank that will eliminate all your tors problems then you wouldnt have to worry about the ignition.get it to run then check for air leaks or a tight throttle cable Quote Link to comment Share on other sites More sharing options...
Banchetta Posted January 26, 2004 Report Share Posted January 26, 2004 Ok,,,,first disconnect ALL the tors system,,its is worthless and you don't need it...Disconnect the 3-wire plug under the left side of the gas tank coming out of a little black box. Next disconnect the parking brake switch on the handlebars and follow the wire towards the gas tank to a connector and disconnect that....Disconnecting the thumb throttle switch will do nothing now, neither will the connectors on the carbs.. W/ that aside, your kill switch is totally separate from the tors system so you have to chase the wires back from the kill switch and see where the disconnection is...you are talking about the key switch right? The ground to kill the motor for the handlebar kill switch is a black/white or yellow striped wire coming from the kill switch and goes towards the gas tank, there is a connection, make sure its hooked up..... Next, the high rev, could have been caused by the ether you put in to start the shee...it takes a few seconds to burn off, or you could have reversed the carb slides in the carbs, look into the air cleaner side and make sure you can see the cutaway of the slides....if everything checks out, the you might have an air leak. Quote Link to comment Share on other sites More sharing options...
Hockey390 Posted January 26, 2004 Author Report Share Posted January 26, 2004 SUCCESS!!! I didnt get to all these replies until after I fixed my problem, but thanks for the input guys. What I did : I hooked the TORS up, instead of removing it because it never hurt me in the past.. I'm sure I could have removed it but I wasnt having troubles before I disconnected it so I figured what the heck... Also my overreving was because my throttle cable was slightly tightened.. The twist throttle didnt come with a cable made for it, so I cut back the cable made for a thumb throttle so it would work with it. Unfortunatly I cut it back about 1/4 inch too far, so I just moved the bolt out further to compensate. While looking into the carb they appeared to be down all the way, but after adjusting that bolt so that it could go down even more, i noticed i decreased the opening by at least 50%... I was really suprised that it idled THAT high with just an opening that much bigger. I mean we are talking it sounded like FULL throttle because the opening in the carb was about 1/8 of an inch instead of 1/16.... So thanks for the help, but I still dont know what exactly caused the on off and the key not to work... But whatever it was, plugging the TORS in fixed my problem, so I'm not complaining. Quote Link to comment Share on other sites More sharing options...
spoin39 Posted January 27, 2004 Report Share Posted January 27, 2004 If I were you I would get rid of the TORS. It will fail on you sooner or later and usually at a bad time. EXAMPLE: Some friends were looking for a down jump off a cliff at a local riding place, We found one a little higher than we wanted but had a perfect hill to land smooth on about 20' down and 30-40' out. Of course I had to try it first so as I gained my confidence (this was a make or break jump) I approached the edge and just before I left the ledge I goosed it and nothing! Needless to say I didn't make it and had to go to the Hospital for broken ribs, torn muscle in knee, and a screwed up quad! Quote Link to comment Share on other sites More sharing options...
Hockey390 Posted January 28, 2004 Author Report Share Posted January 28, 2004 ouch.. Quote Link to comment Share on other sites More sharing options...
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