Joined May 2008
379 Posts | 0+
Norfolk
well the evil clutch slip has reared its ugly head.. again...
started off just in first gear under heavy acceleration
its now got to the point where whatever gear if i accelerate too heavy, by the time the revs reach about 5 or 6 thou it just slips, first and second gear are just pointless for me now... ive been riding for weeks at 3000rpm
uke
first thing i thought was the clutch fluid, replaced, bled, bled again, bled again, replaced and bled again... almost no difference
i have been intending to change the oil and filter recently anyway since its about time she got some fresh lube, done that and i definately used the correct type of oil, the same specification of oil thats been used since new, made a slight difference, first and second are still wasted beyond 4000rpm and after riding a while things gradually got back to the way it was before i changed the oil, no joy unfortunately
so today i finally decided to pull apart the clutch and check its condition, i took measurements of the stack and of the springs:
stack height roughly 47.5mm (aprilia quoted wear limit is 46.3mm)
spring length was 44mm (aprilia quoted wear limit is 44mm)
the plates appeared in fair condition, the far back (deepest in engine) steel plate looked like it had been exposed to the most abuse, slightly noticable heat patterns, not extreme or anything.. but the other steels had no heat evidence at all so im not sure if i should be worried about that :dunno
the clutch lever is stock, as are both the master and slave cylinders, i know quite a few people have had problems there
what do you guys think? should i be looking to get a new clutch kit? is there something i have completely missed?
one thing i would love to know the answer to... why does a set of 9 friction plates on a 06 or newer bike cost £32, and a set of 9 friction plates on an 04 or 05 bike cost £144?!?!
i havent exactly checked the slave cylinder but i dont know what i should be looking for, if you think its worth investigating then i will pull it out and see
thanks in advance for any help :thumbup
started off just in first gear under heavy acceleration
its now got to the point where whatever gear if i accelerate too heavy, by the time the revs reach about 5 or 6 thou it just slips, first and second gear are just pointless for me now... ive been riding for weeks at 3000rpm
ukefirst thing i thought was the clutch fluid, replaced, bled, bled again, bled again, replaced and bled again... almost no difference
i have been intending to change the oil and filter recently anyway since its about time she got some fresh lube, done that and i definately used the correct type of oil, the same specification of oil thats been used since new, made a slight difference, first and second are still wasted beyond 4000rpm and after riding a while things gradually got back to the way it was before i changed the oil, no joy unfortunately
so today i finally decided to pull apart the clutch and check its condition, i took measurements of the stack and of the springs:
stack height roughly 47.5mm (aprilia quoted wear limit is 46.3mm)
spring length was 44mm (aprilia quoted wear limit is 44mm)
the plates appeared in fair condition, the far back (deepest in engine) steel plate looked like it had been exposed to the most abuse, slightly noticable heat patterns, not extreme or anything.. but the other steels had no heat evidence at all so im not sure if i should be worried about that :dunno
the clutch lever is stock, as are both the master and slave cylinders, i know quite a few people have had problems there
what do you guys think? should i be looking to get a new clutch kit? is there something i have completely missed?
one thing i would love to know the answer to... why does a set of 9 friction plates on a 06 or newer bike cost £32, and a set of 9 friction plates on an 04 or 05 bike cost £144?!?!
i havent exactly checked the slave cylinder but i dont know what i should be looking for, if you think its worth investigating then i will pull it out and see
thanks in advance for any help :thumbup
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