R1 help?

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R1 Indy

Original Poster:

4,381 posts

182 months

Friday 31st October 2014
quotequote all
I've got a 08 R1 engine in a kitcar.

It is due to being sold tomorrow, took it for one last drive today, and it suddenly started to make a nasty sound with the clutch frown

Basically when I'm engaging the clutch, I'm getting a nasty whirring/ light crunching sound?

The noise is coming from around the clutch area. Also notice what looks like oil leaking around the gear selector?
And the oil has gone rather black.

Does anyone have any ideas?

Lee540

1,586 posts

143 months

Friday 31st October 2014
quotequote all
R1 Indy said:
I've got a 08 R1 engine in a kitcar.

It is due to being sold tomorrow, took it for one last drive today, and it suddenly started to make a nasty sound with the clutch frown

Basically when I'm engaging the clutch, I'm getting a nasty whirring/ light crunching sound?

The noise is coming from around the clutch area. Also notice what looks like oil leaking around the gear selector?
And the oil has gone rather black.

Does anyone have any ideas?
Slave cylinder leaking? Is it leaking brake fluid rather than oil? Probably wouldn't be black but may look black if its taking road dirt and oil with it?

bgunn

1,416 posts

130 months

Friday 31st October 2014
quotequote all
If the oil has suddenly gone very black, drain it and check for lumps/bits of clutch material - the noise sounds like the clutch plates are worn. Don't forget, the engine/clutch is designed to be driving a bike, rather than a (relatively speaking) heavy car.

R1 Indy

Original Poster:

4,381 posts

182 months

Friday 31st October 2014
quotequote all
bgunn said:
If the oil has suddenly gone very black, drain it and check for lumps/bits of clutch material - the noise sounds like the clutch plates are worn. Don't forget, the engine/clutch is designed to be driving a bike, rather than a (relatively speaking) heavy car.
It could be clutch plates, it's not slipping at all, the plates and steels were replaced around 3K miles ago, thought it would of lasted a little longer.

Looks like I'm going to have to call the buyer and see what he wants to do, as don't have time to change oil/clutch plates now frown


It won't be brake fluid, the brakes are completely separate.

CoolHands

18,496 posts

194 months

Friday 31st October 2014
quotequote all
could be needle bearings breaking up. Really needs taking apart and checking. Nut holding basket could have worked loose etc

eg for bearing see part 24

http://www.boats.net/parts/search/Yamaha/Motorcycl... - YZFR1S/CLUTCH/parts.html

accident

582 posts

255 months

Friday 31st October 2014
quotequote all
in a kit car its going to take about 10 minutes to take the clutch out and have a look.
look for the big nut (not you )being loose.
look for wear on the basket and on the edge of the plates.
look for bits ,bits are bad.
do you use the clutch for up changes?
is it jumping out of gear or giving false neutrals?
look at the plates are they warped or a funny colour?
i dont know if you setup has a slipper clutch,if it has it might have given up.

Pebbles167

3,417 posts

151 months

Friday 31st October 2014
quotequote all
accident said:
look for the big nut (not you )being loose.
hehe very good.

Has the buyer been notified?