Sprocket whine

[Guest]

Thanks for all the info on carbs new problem front sprocket sheered 2 of 3 screws no oem replacement went with jt and spacer looks like it lines up good torqued nut to specs new chain now slight whine from that area

[tom203]

Put your bike/model/year in your signature. How did this happen?
Did you check alignment of rear wheel/sprocket?

[gsrick]

Proper chain tension? 20-30 mm of movement at the center point of the chain between the sprockets?

[steve murdoch]

Might seem obvious but are the new chain and sprockets all the same pitch? 530? 520? 630?

[gsrick]

Might seem obvious but are the new chain and sprockets all the same pitch? 530? 520? 630?

Good question. We had a set come off ebay at the shop I work at, that had the wrong manufacture make for the front sprocket. Right size, but wrong shaft hole and splines, so a goof is possible. Humans do make mistakes.