No Drive

R1stu · Shrek! Joined: 12 Mar 2003 Karma :

I was out and about monday when I ran into a problem!

I went to pull away after completing a job!

Starts bike, puts into gear lets clutch out, speedos going up but yet im at a stand still! :thumbdown :bugeyes

The chain is rotating when i roll the bike, so im not too sure if its jumped of the front sprocket or not?

Does it sound like final drive gears gone? It all clicks into gear and clutch works etc. just no drive to rear wheel?

HELP!
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Carbon closet tart! https://www.bikepics.com/members/r6stuk/02r6/
Stolen bike. 2000 R1: https://www.bikepics.com/members/r6stuk/00r1/
Current bike 1991 Honda ST1100 Pan European, 1986 Honda cb350sg (Finished)

Guest · Brolly Dolly Joined: 22 Apr 2004 Karma :

Is the chain spinning in relation to the engine revs when you've put it in gear, or just turning when you push the bike?

I assume you can see whether it's on the back sprocket correctly or not, so it sounds like .....

a: the chain has jumped off the front sprocket

b: the front sprocket has come off it's splines

c: (very expensive) the output shaft has sheared/lost it's splines.

If the speedo's driven off the front sprocket then it's obviously turning so it sounds like 'a'.

R1stu · Shrek! Joined: 12 Mar 2003 Karma :

Driven from the font sporcket! and dosent turn when engine moving! but rotates when move bike!

am going to take off the cover soon!
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Carbon closet tart! https://www.bikepics.com/members/r6stuk/02r6/
Stolen bike. 2000 R1: https://www.bikepics.com/members/r6stuk/00r1/
Current bike 1991 Honda ST1100 Pan European, 1986 Honda cb350sg (Finished)

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

As the speedo is moving I would say that the most likely thing is that you have copied a certain NSRs chain:-

https://www.alfa-pages.co.uk/TempPicture/cols_sprocket.jpg

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

sickpup · Old Timer Joined: 21 Apr 2004 Karma :

As the man above say's, that or you've stripped the splines off of the output shaft.

R1stu · Shrek! Joined: 12 Mar 2003 Karma :

my chain does look a bit that! Shocked

it has not been used for 2-3 months and left outside! and now is 2-3 incs of slack! I have a spare sprocket so I can put them on there!

Let you know the weekend!
____________________
Carbon closet tart! https://www.bikepics.com/members/r6stuk/02r6/
Stolen bike. 2000 R1: https://www.bikepics.com/members/r6stuk/00r1/
Current bike 1991 Honda ST1100 Pan European, 1986 Honda cb350sg (Finished)

Guest · Brolly Dolly Joined: 22 Apr 2004 Karma :

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

kasandrich · Trackday Trickster Joined: 20 Oct 2004 Karma :

I think you could say the owner of that sprocket has had his monies worth Razz

But look how dry & rusty the chain looks! who would ride a bike like that?
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Richard

CBR1000FM

mr jamez · World Chat Champion Joined: 04 Aug 2003 Karma :

R1stu · Shrek! Joined: 12 Mar 2003 Karma :

Looks like the sprockets come off the splines!

dose any1 know what the size the bolt is that holds the sprocket on as i seemed to have lost mine! :bugeyes

And where I can get one from before monday?
____________________
Carbon closet tart! https://www.bikepics.com/members/r6stuk/02r6/
Stolen bike. 2000 R1: https://www.bikepics.com/members/r6stuk/00r1/
Current bike 1991 Honda ST1100 Pan European, 1986 Honda cb350sg (Finished)

Mr Tickle · Two Stroke Sniffer Joined: 09 Oct 2004 Karma :

Silly question... How can the speedo move when the bike is at a standstill? The cable goes to the front wheel doesn't it?

Forgive my ignorance if I'm wrong Rolling Eyes

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Mr Tickle

R1stu · Shrek! Joined: 12 Mar 2003 Karma :

The R6 is driven from the front shaft!
____________________
Carbon closet tart! https://www.bikepics.com/members/r6stuk/02r6/
Stolen bike. 2000 R1: https://www.bikepics.com/members/r6stuk/00r1/
Current bike 1991 Honda ST1100 Pan European, 1986 Honda cb350sg (Finished)

Guest · Brolly Dolly Joined: 22 Apr 2004 Karma :

Any Yam dealer should stock 'em, try Fowlers in Bristol if you can't get one locally. Part number 90179-18020-00 according to YAM's USA site. I'd get a new tab washer too - 90215-21022-00

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

Is it a bolt or a large nut? Watch out as it is quite easy to wreck the thread on the output shaft from the gearbox so that the nut will not go on again.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing