Bit of a strange one this, went out on the Streetfighter yesterday, did 80 miles ish in one hit, stopped for a bite 30mins then moved on, its this part of the journey that I noticed the biting point on my clutch moving, originally the biting point was as I started to release the clutch lever, so quite near to the bar, but then it started moving further out, by the time I reached whiteways 30 odd miles on the biting point was literally at the end of releasing the clutch lever, so nearly full travel of lever. I have checked the fluid there appears to be no loss of fluid (using a race grade fluid) Clutch is a Ducabike slipper affair Slave is Oberon and new ish at 3 months old, system recently had just putoline standard fluid but was fully drained and refilled with Putoline race fluid and bled thoroughly done by my local dealer. So where do I start looking to identify the problem ?
Don't really know enough Vince, but trying to be helpful: Possibly stuck pushrod being ground away thereby altering length and consequently biting point!
Nice thought John but no its not that, once bike is left standing and everything has completely cooled down biting point returns to riginal position and it starts all over again.
The new fluid isn't some exotic DOT 5 or something not recommended for your system, is it? It could be incompatible with the seals in the master / slave. I don't know why the biting point would alter back and forth.
No I'm pretty sure it's ok. They used the same on my panni and I never had a problem. I'm bloody stumped.
If action returns to 'normal' repeatedly then sounds like a heat related problem. Is spigot bearing okay in pressure plate? maybe pushrod constantly spinning for some reason.
Push rod is a nice tight fit in to the spigot so no issue there. Bradders the whole system was bled couple weeks back.
Contaminated fluid? Ie water ingress. A system bled recently isnt immune as I know well. Shit happens. I'd replace it all as my 1st job just to be doubly 100% about it.
I'm unsure about possible repercussions of overfilling/under filling the MC, if it was overfilled/under filled could this possibly cause the symptoms you are experiencing?
I recall that your reservoir was at a 'unusual' angle due to brackets, wonder if this is having any influence now you've fitted the slipper?
