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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
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#1
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What is wrong with my Clutch/Drivetrain?
I was out Saturday doing a final post rebuild check up ride and testing the results of the knobby knife. My little test track is very tractable, a mix a clay and sand and pretty virgin stuff. I was cracking the throttle and mostly riding normally with a little hard shifting when I noticed my clutch lever couldn't be pulled all the way into the bars and the clutch wasn't disengaging.
This isn't "drag". The clutch doesn't seem to want to disengage. I bled everything to make sure, no change. When I had it up on the stand running I could get the clutch to disengage (tire to stop spinning in first), but I had to be absolutely crushing the clutch lever in to make it happen. Did I bend a shift fork? Is something shot? I have an entire extra engine (same year MC250) that I have been planning to take apart to play with. I took the clutch cover off of it last night, do I unscrew the clutch springs to get the basket to come out? Could I just swap basket for basket to see if that helps? What steps should I take? Help!
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2003 EC250 w/ Ohlins pkg Sometimes you eat the bear, sometimes the bear eats you. |
#2
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Might be excessive grooves on the clutch basket fingers.
Take it apart and take a look see. With the clutch pressure plate off, pull the clutch lever in and see if the push rod moves freely. |
#3
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Will do. Gonna get her cleaned up and apart tonight. I might take the spare apart first for a little practice.
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2003 EC250 w/ Ohlins pkg Sometimes you eat the bear, sometimes the bear eats you. |
#4
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did you remove clutch slave anytime recently? if so, did you make sure it was seated properly and tightened the bolts evenly while pressing the slave body in to keep it seated?
if not, i'm betting clutch hub or basket fingers are grooved.
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07 ec300 was 00 xc200 now a 00 xc300. now parting out. 99 ec300 (now a pile of parts which are for sale) Stainless Cycle - Motorcycle Bolt Kits www.stainlesscycle.com |
#5
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Nah, no recent removal but I will check that as I go along. Thanks!
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2003 EC250 w/ Ohlins pkg Sometimes you eat the bear, sometimes the bear eats you. |
#6
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Quote:
to remove clutch basket and hub: remover outer cover remove 6 spring screws. remove springs, pull pressure plate off, remove clutch plates. remove pushrod (carefull - might have a bearing on the end - can't remember...i work on too many motors..). unbend hub center lock nut lock. zip clutch hub nut off with rattle gun. remove hub - pay attention to spacer location remove basket - pay attention to spacer location, and be careful with bearing/bushings. inspect clutch hub and basket for wear. check basket cush for slop (gear should not move independent of basket..) then take a look at your other hub and basket. put the best combination back in there.
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07 ec300 was 00 xc200 now a 00 xc300. now parting out. 99 ec300 (now a pile of parts which are for sale) Stainless Cycle - Motorcycle Bolt Kits www.stainlesscycle.com |
#7
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sounds to me like the slave cylinder piston has come out of the cylinder, take the slave cylinder off and push it back in you may have to bleed afterword.
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#8
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Why would that happen?
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2003 EC250 w/ Ohlins pkg Sometimes you eat the bear, sometimes the bear eats you. |
#9
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So I took some time tonight and tore down the whole clutch of my spare MC250 Motor. It looks pretty good except one broken friction plate. The inner few steels are a little blue but the outers look new. The basket appears to be pretty useable so that is good.
Is there any magical method to take the nut that holds the inner part of the basket off? My impact is weak, not air. 6th gear and hold the rear wheel? Also the fold over metal nut holder, is that reuseable? I plan on cleaning the EC tomorrow night, popping the skid off, then checking the slave as nmrider suggested. If that doesn't work I'll pull the clutch apart. Here are the pics of the MC clutch-
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2003 EC250 w/ Ohlins pkg Sometimes you eat the bear, sometimes the bear eats you. |
#10
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An impact is the easiest tool to remove the nut. Putting the bike in gear won't do anything as the clutch is taken apart.
You will have to hold the inner basket. Some people take a steel clutch plate and weld a bar to it to hold the inner basket. The locking washer is reuseable. To properly diagnose your bike. DON'T start ripping it apart. Remove one part at a time and check them as you go. The MC basket looks good. |
Tags |
clutch, disengage, high lever effort |
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