MDS2106 Posted June 4, 2007 Report Posted June 4, 2007 (edited) Has anyone fried a clutch with almost all of the adjustment left?I put clutches in about 6 months ago and they have been doing fine than he tells me it feels like the clutch is slipping so today I get on the bike and it slips bad in the upper rpms expecially when the powerband kicks in.I also noticed it after shifting when pinning the throttle.It still launches faily good. It just seems weird that the lever still has alot of adjustment left :shrug: Could the plates be glazzed from all the drag racing??? Edited June 4, 2007 by MDS2106 Quote
Snopczynski Posted June 4, 2007 Report Posted June 4, 2007 What knid of clutch is it, and what springs did you use? Quote
blueshee03 Posted June 4, 2007 Report Posted June 4, 2007 Has anyone fried a clutch with almost all of the adjustment left?I put clutches in about 6 months ago and they have been doing fine than he tells me it feels like the clutch is slipping so today I get on the bike and it slips bad in the upper rpms expecially when the powerband kicks in.I also noticed it after shifting when pinning the throttle.It still launches faily good. It just seems weird that the lever still has alot of adjustment left :shrug: Could the plates be glazzed from all the drag racing??? yes they could be glazed.also the type of oil you use in the tranny can help create this problem.another thing to check is how badly the pressure plate and clutch hub is worn.when you installed the clutches did you install new springs ? did you install the steel plates the proper way? Quote
MDS2106 Posted June 4, 2007 Author Report Posted June 4, 2007 Tusk clutch with 3 hd barnett springs and 3 hd ebc springs.All steels were installed corectly.The oil I am using is valvoline 10w-40 4 stroke atv oil..We have been doing quite a bit of dragging lately, it just seems like the clutch would be losing some adjustment before the plates fry. Quote
Snopczynski Posted June 4, 2007 Report Posted June 4, 2007 Facts: That clutch, and those springs are crap. You need to have a barnett race clutch or cascade innovations heavy duty clutch. Opinion: I would never put motor oil, atf, or rear axle oil in my transmission. It took a lot of years of breaking shit to figure out I needed to be running a formulated 2 stroke gear oil. Quote
MDS2106 Posted June 4, 2007 Author Report Posted June 4, 2007 The atv oil is suppose to be good for wet clutches.I figured that the barnett springs were really good springs they are almost twice as stiff as the three ebc springs. Quote
shanYE west Posted June 4, 2007 Report Posted June 4, 2007 Facts: That clutch, and those springs are crap. You need to have a barnett race clutch or cascade innovations heavy duty clutch. I've used tusk kits in alot of bikes as well as many other people on this site and seem to be pretty happy with them. I personaly will never run another barnett clutch. Their springs loose tension very quickly and plates glaze easily. But thats my opinion... I think the problem is is not in the clutch but in other componets like Blueshee said. (pressure plate and inner hub) I replace the presure plate everytime I change the clutch pack and if the inner hub is groved a bit I replace that also. The clutch pack is only as good as the rest of the clutch componets. Quote
Snopczynski Posted June 4, 2007 Report Posted June 4, 2007 The barnett kits you have to use are not the Dirt Digger clutches, they are the Barnett Race clutch packs. Quote
shanYE west Posted June 4, 2007 Report Posted June 4, 2007 The barnett kits you have to use are not the Dirt Digger clutches, they are the Barnett Race clutch packs. No thanks, been down that road already. I'll stick with what I'm using. I might try one of those Barnett pressure plates somtime though. Quote
shanYE west Posted June 4, 2007 Report Posted June 4, 2007 (edited) The atv oil is suppose to be good for wet clutches.I figured that the barnett springs were really good springs they are almost twice as stiff as the three ebc springs. If it was me. I would replace the pressure plate and replace your springs. Barnett springs like to loose tension very quickly (aslo heard this from a very reputable builder) and I'd bet thats why your clutch is sliping. Buy a set of Toomey springs (15.00) and use 3 of them and 3 new springs of your choice and it should fix your problem. Or all 6 Toomey springs dependnig on how much motor you have. There is many people running 80+hp using Tusk kits and having good luck with them. If you feel like you need different clutch set-up, I'd check into getting one from Jeff @ F.A.S.T Edited June 4, 2007 by Fouledout420 Quote
MDS2106 Posted June 4, 2007 Author Report Posted June 4, 2007 If it was me. I would replace the pressure plate and replace your springs. Barnett springs like to loose tension very quickly (aslo heard this from a very reputable builder) and I'd bet thats why your clutch is sliping. Buy a set of Toomey springs (15.00) and use 3 of them and 3 new springs of your choice and it should fix your problem. Or all 6 Toomey springs dependnig on how much motor you have. There is many people running 80+hp using Tusk kits and having good luck with them. If you feel like you need different clutch set-up, I'd check into getting one from Jeff @ F.A.S.T I pulled the clutches today it looks like two fibers were toasted and two steels were burnt the rest looked like new.I will be replacing all of the clutch assembly except for the basket... Quote
dawarriorman Posted June 5, 2007 Report Posted June 5, 2007 (edited) Why are you replacing the pressure plate every time? Better yet, how often do you change your clutch? Unless its warped you're wasting money. Edited June 5, 2007 by dawarriorman Quote
shanYE west Posted June 5, 2007 Report Posted June 5, 2007 Why are you replacing the pressure plate every time? Better yet, how often do you change your clutch? Unless its warped you're wasting money. I change my clutch once a year and for 15.00 for a new pressure plate... why not? Quote
xLastShotx Posted June 5, 2007 Report Posted June 5, 2007 The stock 1973 Yamaha RD350 (street bike with Banshee engine) clutch plates and friction plates are some of the best you can get. The Tusk and EBC clutch kits can blow apart in some of the higher horsepower applications. My engine builder and several of my friends who went to him have all been running the 1973 Yamaha RD350 stuff and never had one problem, and there all running 65hp+ banshees. One of them decided to keep the EBC EP Race Clutch Kit in his machine against my builders warnings after he had it built because the clutch was new and he didn't want to waste it. It ended up blowing apart on his second ride half way up Oldsmobile. I have a brand new Tusk Heavy Duty kit in mine rite now, but after what my builder has told and shown me I am going to take it out and get a street bike clutch (RD350) before my engine work is done. 1973 RD350 Clutch and Friction Plates...It comes out around $130.00 (Not including springs) Quote
shanYE west Posted June 5, 2007 Report Posted June 5, 2007 (edited) Why are you replacing the pressure plate every time? Better yet, how often do you change your clutch? Unless its warped you're wasting money. Pressure plates dont have to be warped to be bad. They do wear. Edited June 5, 2007 by Fouledout420 Quote
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