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Old 07-03-2014, 05:16 PM   #1
divotdm OP
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Bandit 1250 clutch slips

Hi,
I have an 07 Bandit. Hydraulic clutch. 12000 miles.At operating temp the clutch slips badly and only the last little bit of travel of the lever has an effect. When cold, and for the first several miles it works perfectly. I have installed new friction plates and flushed the fluid which improved nothing. I am at a loss. What could cause this?

Thanks,
Dave
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Old 07-03-2014, 06:23 PM   #2
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Quote:
Originally Posted by divotdm View Post
At operating temp the clutch slips badly and only the last little bit of travel of the lever has an effect.

Meaning you cant get it to disengage or engage?

Are the springs torqued to spec?
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Old 07-03-2014, 06:43 PM   #3
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On a dl1000 it's real important to install the hydraulic slave correctly. Otherwise the clutch no worky. So retrace your steps, I bet it's something simply..
BTW, why are you replacing your clutch at 12k?, are you drag racing?
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Old 07-03-2014, 07:25 PM   #4
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Quote:
Originally Posted by Danjal View Post
Meaning you cant get it to disengage or engage?

Are the springs torqued to spec?
pulling away from a stop, feel no attempt at forward motion until the very end of the lever release.

spring bolts installed by the book {oem manual)
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Old 07-03-2014, 07:29 PM   #5
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Quote:
Originally Posted by lesman View Post
On a dl1000 it's real important to install the hydraulic slave correctly. Otherwise the clutch no worky. So retrace your steps, I bet it's something simply..
BTW, why are you replacing your clutch at 12k?, are you drag racing?

replaced friction plates to attempt to correct the issue. old ones must have been ok as the problem remains
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Old 07-03-2014, 08:11 PM   #6
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That's typical of a Suzuki hydro clutch, not engaging till its almost out. My busa is like that as are a few other Suzuki bikes. On the upside, you can shift fast like that.

Your above issue is almost dead on with sounding like a clutch slipping issue. Im wondering if your master cylinder isn't bleeding fluid back through and holding up. Hows the fluid look? Also pull the reservoir cover and check for contaminants. Does the bandit have an op rod by chance too?

I'd wager its more a spring issue or something stupid

Edit: Yes it does. Like the old GS series some of the older bandits were modeled after, the clutch ran on the left side of the case and used a rod to op the clutch off the right side. Luckily, you can pull the hydro unit and check its operation to check the master cyl it looks like. Plus it has a slave cyl.

Pics here:
http://www.cmsnl.com/suzuki-gsf1250-...2.html#results
http://www.twtex.com/forums/showthread.php?p=401726

Slave cylinder is just above the chain there.


Would it be an easy pull to check out the slave cylinder at all before needing to crack into the cases again?

Could also be a bent rod. Had that on an older GS.

Danjal screwed with this post 07-03-2014 at 08:30 PM
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Old 07-05-2014, 12:54 AM   #7
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Bandit 1250's aren't known to have clutch slip issues.

What kind of oil are you using? Is it 'Energy Conserving' oil?
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Old 07-05-2014, 02:04 PM   #8
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What he said.... That oil can cause clutch slippage issues....get her up to temp....good & warmed up....drain and refill w/Dino ....repeat. Maybe a quick fix.w
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Old 07-05-2014, 02:25 PM   #9
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Castrol GTX 10-40 API-SJ Not energy conserving
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Old 07-05-2014, 10:27 PM   #10
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No problem of clutch slip on my 3 yrs old FA at 50k km. But I only use MC spec Oil. Using M1 Racing 4T 10W40. No problem at all. Maybe you can just change to a MC spec oil to see whether the clutch still slips.Good luck.
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