| Author | Message | ||
     Gbaz |
When I received my bike back from the dealer after the last clutch leak I thought it felt like the clutch was slipping. At any speed there is a slight surging that is not the same as the low speed surging that some (me included) complained about. So I looked in the service manual and there are a few possible causes. The one that looks the most likely is that the clutch line needs to have the air purged. My dealer is over an hour away so I intend to do this myself to save time… Any opinions or tips to bleeding the line from someone that has done it before? Thanks | ||
| Nuts4mc |
a) if there was air in the line ...you most likely would have problem shifting/engaging first gear /or finding neutral - if there is air in the line - it acts like a spring and doesn't allow the hydraulic pressure to fully disengage the clutch...the air "takes up" the travel that the hydraulic system is trying to apply to the clutch. b) if the clutch is slipping you would see it in the tach vs MPH...too high an rpm and too low a MPH would indicate slipping clutch c) Surging sounds like fueling, brake dragging, belt damage d) recently change the oil? what type did you use - the new automotive oils with their "high mileage" additives are bad for motorcycles wet clutches...they tend to make them slip when under acceleration. e) if you really want to bleed the clutch hydraulic system - 1) use a good grade of brake fluid Motul 5.1 if you can find it. 2) brake fluid will eat the plastics up front by the M/C - use a drip pan made out of wifey's aluminum foil - put it under the Master Cyl and long enough to keep drips from touching the body work...a spray bottle with water in it will quickly wash off spills - don't get the water in the Master Cyl. 3) another pair of eyes to watch the fluid level and pump the master cly helps. 4) PATIENCE good luck | ||
| Gbaz |
It feels like its slipping. The only thing that was done to the bike from it not feeling like this to now was having the clutch leak fixed. The service manual lists bleeding the clutch as a possible fix to a slipping clutch. I tend to agree with you about air in the line causing the clutch to not disengage, but that is what the service book says to do... Ill 2x check the belt and breaks. | ||
| Crazyhawk99 |
+1 to what Nuts said. I have had to bleed the clutch and my symptom was difficulty shifting, particularly when the bike is not moving. Also, hard to find neutral. | ||
| Drawkward |
Does bleeding the clutch really help with the difficulty finding neutral? | ||
| Nuts4mc |
Mr. Draw...i see from your profile you live in the lone star state - i visited your great state last year in August - it get's dam hot - in another thread about clutch cable conversion - I discuss the routing of the clutch hydraulic line and it's proximity to heat generating devices on the 1125r. a) if neutral is hard to find when the bike is cool or you're just starting off - Yes - bleed the clutch - the hydraulic system isn't doing it's job. b) if it's hard to find neutral after you come home from a long ride (say from Austin to Fredricksberg) and the bike is hotter than Texas blacktop in August - then the hydraulic fluid is possibly breaking down and needs to be replaced with new fluid or a better grade (Motul 5.1)...Dot 3,4 & 5.1 are compatible as each grade has a higher boiling pt. - Wikipedia Dot brake fluid to learn more....DO NOT use DOT 5 - it NOT compatible with DOT3,4, & 5.1 c) or the slave cylinder's piston is leaking (internally) and your hydraulic system has lost it's muscle... stay cool - and good luck | ||
| Usanigel |
You can bleed the clutch just by opening the bleed nipple (attach a clear hose to a catch bottle) and the fluid will "fall" out. An over full reserve will also cause the clutch to slip as the fluid has nowhere to expand in to. | ||
| Nuts4mc |
+1 on what USANigel wrote - too full of a reservoir leaves NO room for expansion - half full on a level site glass | ||
| Gbaz |
Well i hate to say it, but i did not even think about checking to see if the reserve was over filled... Ill take a look today. | ||
| Brumbear |
there is an adjustment that can be made I forget how to do it though the spherical nuts center shaft(allen wrench) had something to do with it. I will bet its overfilled though. | ||
| Skntpig |
Why don't you just do a quick few bleeds if it is too full or not. This way you know and you are done in less time than this took me to type this. | ||
| Gbaz |
Clutch is overfilled. Will drain when I can |
