15/42 sprockets waiting ....

Stare at it for an hour.
Have a brew.
More starin.
Go to Amazon and buy a 'How to' on basic motorcycle fettling. Haynes or whatever.
Stare some more.
Make sure you've got all the tackle at hand.
Start job.
Take time.
Double check EVERYTHING.
Go for a test [slowly].
Feel good.
Go wheelie.

Refer to manual many many more times in future years and get confident in fettlin thi bark.

AAAAAAAAAAAAAAAAAHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
NNNNNNNNNNNOOOOOOOOOOOOOOOOOOOOOOOOOOOO
Wheres Charlie Brown gone ???????????????????????????????????????????????????????????????????????????

Bring him back RIGHT now.

OK in simplest terms, start with the rear.

Remove wheel (i assume you can do this ?)

Pull off the sprocket carrier.

The sprocket nuts need 2 spanners, 1 front, 1 rear. You may need someone to help you with these by holding the sprocket carrier (or a vice).

Once removed it simply comes straight off. Simply re-fit them in reverse and tighten small ammounts on an opposing side basis. So, assuming your bolts are x 6, the one as 12 o'clock, then 6 o'clock, then 3pm, then 9pm, etc etc.... Don't fully tighten in 1 go, couple of turns so they all tighten at the same rate (thus keeping the sprocket/carrier level).

Front sprocket is really really easy. Lighter to open than you think.

They recommend some grease on the inside of the sprocket and locktite 243 on the thread. Copperslip will be fine on the back of sprocket. DEFFO use locktite although it in theory can't come undone as it rotates in reverse to opening.

Use a torque wrench on both the sprocket nuts and also on the front sprocket bolt.

There's very little you can do wrong apart from overtighten the front bolt and strip thread. The nuts on the rear are threadlock nuts so shouldn't come undone.

Ensure you fit the spacers correctly on wheel and put back together, again ensuring you do it to the correct torque.

All in all, if not fitting a new chain, job should be completed within 1 hour.

Hmmmm take some pics and get a mate to lift/help.

Assuming 15/42 is no more than 1 down and 2 up then chain tension shouldn't even come into the discussion.

Have you tried re-fitting without the chain ? (Just to show you can do it)

I'd be suprised if that were the issue. For that to be the case your chain tensioners would have had to have been at the minimum....

Hold on... you have tried the chain tension adjusters yeah ?

ChrisBuk said:

the rear brake had snapped shut...i prised it open and the wheel fell forward into
place ,which meant..so did the chain :lol

ah well...its done now...took hour and half..not too bad
thanks for the help weeksy :thumbup :cheers

Click to expand...

LOL you're not the first to do that and won't be the last mate

nice one.