Bike Troubles ...

Slaanesh

Dropped the bike in yesterday to get a new chain (old chain stretched to the end). Picked it up yesterday evening and as soon as I started to drive off there was a loud grinding type noise. I brought it back to the shop and the guy hopped on and took it for a spin. Then for about an hour he had the sprocket cover off cleaning everything making sure everything was ok. he had it up on the stand and was revving it in gear and it made a few weird noises (a bit clunky). I had no way home so had to drive it, I made it ok and dropped it back in today.

I just dropped it in to see what the story was and he said he was just waiting for a new front sprocket and hoped that was the reason otherwise it might be something internal (gear box). Damn, I really hope it's not the gearbox and the bike was fine with the old chain.

Anyone have any thoughts?

Oryx

Only that you shouldnt put a new chain on old sprockets anyway, the old sprockets will have worn in with the old chain, and will only wreck the new one.

I aint no mechanic, so I dont know any more. I hope your gearbox isnt buggered.

Crapbag

Normally when you replace a chain, it is a good idea to check both spockets aswell. did you check them for wear? What model bike is it? Where did you leave it in? If the chain is fitted incorrectly it might cause an unusually loud noise. Make sure the spockets are adjusted back to shop manuals specs for a new chain. Try elevate the rear wheel (use the main stand or a block) and put it into gear with no weight on the rear, see if the noise is still there. It will be easier to identify when you are off the bike.

I wouldnt drive it until it is sorted though. Get it on a trailer if you can to transport it.

Slaanesh

Leo O'Reillys on Dorset st.

It was put up on the stand and tested and it wasn't overly fluid but the grinding noise wasn't present.

It's a Yamaha Fazer 600 '03.

He said he's changing the front sprocket because it was a little warn but didn't think it warn enough to warrant replacing the first time round.

Chains and sprockets should be changed at the same time. They would both be equally worn. I wouldnt change one and not the other. Im thankful that my bike has a driveshaft and I dont have to worry about chains and sprockets anymore!

bushy...

They should have replaced them as a set , I'd reckon the teeth were a bit hooked on the front sprocket , would sound ok with your old chain , but be with the new one it would be fairly noisy ( and damage the rollers on your new chain) .
They really shouldn't have let you away on it , instead given you something else to drive home.

bjmotors

wouldn't recomend leo o reilly's in the first place, but as the others said you should always chain the sprockets at the same time as the chain.

Crapbag

Whats the noise like now the spockets have been replaced?

Slaanesh

Whoops forgot to reply, replacing the sprockets sorted it out.