Replaced Front Sprocket... I can't get the lock washer on!

[waffles007]

Hi, I have a 1978 GS550, i replaced the front sprocket with a new stock 15 tooth, upon trying to put the lock washer back on i find out the new sprocket is wider, so I can't put the lock washer on. I know the lock washer holds the nut in place will the shaft spins, can i not use the washer or is that dangerous? what can i do?

Thanks,
Devin

[Billy Ricks]

Did you get the right sprocket?

[KEITH KRAUSE]

You bought the wrong sprocket. You'll have to get a genuine Suzuki part or something that's the same thickness.
Whatever you do, DO NOT run the bike without that lockdown washer. The sprockets are infamous for loosening up even when correctly torqued but the washer stops them from moving more than maybe 1/32". You'll do some real damage if that sprocket came off.

[waffles007]

1978 GS550 Front Sprocket Replacement Troubles

Thanks guys for the help. I guess i'm returning the sprocket then.

[KEITH KRAUSE]

Just another thought. You DID install the new one facing the right way? If you reverse some sprockets, they don't sit well due to a recess or design on one side. If yours has the three Phillips screws holding a plate to the sprocket, they should face out. I've seen the seller reverse this (for what reason I don't know) and it causes fit problems.

[waffles007]

no there aren't any designs on the sprocket it has the same thickness on both sides and no screw holes it's made of carbonized steel... i've taken it back and gotten a different sprocket which fits with the lockwasher.

Thanks for all the help.