James Banks Posted December 19, 2013 Share Posted December 19, 2013 Earlier today i slipped on a wet manhole cover. The bike (honda cbr 125) landed on it's left side, my leg caught some of the impact but when trying to get it home i noticed it wouldn't shift down gears. Only up. The gear pedal hits the side stand. I had to hold in the clutch and get high revs to get it to move anywhere. It felt as if the clutch wasn't releasing properly when i let it go completely. Anyone have any idea on how much of a job it would be to repair and how much it would possibly cost?Any advice appreciated. Thanks alot. James. Quote Link to comment Share on other sites More sharing options...
rennie Posted December 19, 2013 Share Posted December 19, 2013 At least you're ok!It could just be that something has bent and canbe bent back! It could be worse!hard to say without seeing the bike.Have a good look in the daylight.Good Luck! Quote Link to comment Share on other sites More sharing options...
Adam Posted December 19, 2013 Share Posted December 19, 2013 As Rennie said it sounds like a bent gear lever with a bit of luck. Glad you're okay though lesson learned, avoid manhole covers and road markings like the plague. Quote Link to comment Share on other sites More sharing options...
James Banks Posted December 19, 2013 Author Share Posted December 19, 2013 Thanks both. I'm gonna go look at it now and take it to a garage. Fingers crossed. Quote Link to comment Share on other sites More sharing options...
James Banks Posted December 19, 2013 Author Share Posted December 19, 2013 Got the gear peddle back in place, that's working fine now. The mechanic fiddled with the clutch and now that's working better than it was before but at high rpm's (starts at about 6k) it feels as though i'm holding the clutch down. The revs go ridiculously high very fast without delivering much power to the bike. It's fine as long as i stick to low rpm's but that restricts my top speed on a 125 :/ Quote Link to comment Share on other sites More sharing options...
Smokin Joe Posted December 19, 2013 Share Posted December 19, 2013 Got the gear peddle back in place, that's working fine now. The mechanic fiddled with the clutch and now that's working better than it was before but at high rpm's (starts at about 6k) it feels as though i'm holding the clutch down. The revs go ridiculously high very fast without delivering much power to the bike. It's fine as long as i stick to low rpm's but that restricts my top speed on a 125 :/ The mechanic needs another fiddle with the clutch, he's adjusted it so it's slipping. And get it done sooner rather than later before you burn the clutch out. Quote Link to comment Share on other sites More sharing options...
James Banks Posted December 19, 2013 Author Share Posted December 19, 2013 I think that you're right, i definitely smell burning clutch when at high rpm. I just hope it's just that adjustments need to be made rather than something that wrong internally with the clutch as a result of the bike hitting the ground. Could turn out expensive if so Quote Link to comment Share on other sites More sharing options...
megawatt Posted December 19, 2013 Share Posted December 19, 2013 Yep, the clutch is still slipping. If you keep riding it, you will destroy it!!! Quote Link to comment Share on other sites More sharing options...
James Banks Posted December 19, 2013 Author Share Posted December 19, 2013 Right, first thing tomorrow i'm taking it back down. Is there any way to tell if it's an easy fix or something wrong with the clutch itself? There's no burning smell or problems at low rpm's. Think it's damaging the bike then? Quote Link to comment Share on other sites More sharing options...
megawatt Posted December 19, 2013 Share Posted December 19, 2013 Clutch normally runs in a bath of oil and you can't smell it burning. Slip it enough and you will warp the steel plates and wear away the friction plates. Probably an easy fix for a half decent mechanic? Quote Link to comment Share on other sites More sharing options...
James Banks Posted December 21, 2013 Author Share Posted December 21, 2013 I asked a mechanic, (not the usual one) and he said if it's slipping then the clutch is going and i need a new one. He said that the tuning on the clutch makes no difference if it's slipping and he wont have time to replace the clutch until after the weekend. I'm meant to be doing about a 200 mile drive tomorrow . I really need to try to get it fixed tonight. I hope it isn't the clutch, maybe if i stay at low rev's tomorrow the bike will survive the journey (although it will be even longer) and get it repaired on the other end. Quote Link to comment Share on other sites More sharing options...
Guest Posted December 21, 2013 Share Posted December 21, 2013 Clutch slip can be down to a few things.. No necasserily always down to the Friction pads being low..Generally, if the springs are good, then lower clutch material shouldnt affect it too much, as the tension on the springs push the friction plates in, So should still make good contact..I recently replaced my clutch because the friction pads were low, it slipped if i burried the throttle in a high gear and low revs, or if i hit a harsh bump in the road. But was fine normally..Like i said, clutch slip can be a few things..Low friction plate materialweak clutch springsincorrect engine oilpoorly adjusted clutch lever (most engines have a nut inside the crank casing directly behind the clutch lever to the engine, although, some honda engines dont have this)..Poorly adjusted clutch cable..Generally speaking, you want your clutch cable tightened so that when the clutch lever is fully out, there is around 1 - 2cm of clutch lever free play before the clutch starts to dissenguage..This is in the Honda engine manual...and the biting point of the clutch should be half way between the lever travel..If the biting point is right at the end of the clutch release travel, ie: right at the top.. you may want to adjust the cable, so that there is 1-2cm of free-play before the clutch starts acting on a pull...ID check the smallest things first, before cracking the crank casing open and doing the more advanced stuff...Hope thi shelped Quote Link to comment Share on other sites More sharing options...
James Banks Posted December 21, 2013 Author Share Posted December 21, 2013 Thanks alot! i'm crossing my fingers and hoping that when the bike fell and bent the clutch handle it messed up the adjustment and that's all that needs doing. I'm gonna look into it all later. Thank you! Quote Link to comment Share on other sites More sharing options...
James Banks Posted January 27, 2014 Author Share Posted January 27, 2014 A month or so later and i've had the levers and cable sorted so it's definitely not them. Alignment was out on the clutch lever which was causing some unwanted tension. Now as i slow down (say in second gear) by just using the throttle a horrible grinding sound comes from the engine. I'm gonna guess that this is the clutch slipping as it tries to transfer the change (decrease) in power from the engine to the wheels. I thought it could either be that or a chain issue. May just need a new clutch. If i had the tools and some space i'd change the clutch plates myself as i'd save around £100 doing it and there any many videos on how to do it. Any suggestions guys? Thanks alot. James. Quote Link to comment Share on other sites More sharing options...
eastanglianbiker Posted January 27, 2014 Share Posted January 27, 2014 changing the clutch is a very easy job but also change the oil and use fresh oil at the same time as the old oil will be full of clutch particles.you need a set of friction plates and steel plates clutch case gasket and oil.if unsure take pics as you take it apart but it is a very easy job to do on that bike Quote Link to comment Share on other sites More sharing options...
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