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550 650 top end conversion

Thread starter 1981gs550
Start date May 3, 2023

1981gs550

Forum Newbie

May 3, 2023

to those that have done this or has knowledge on the 550 bottom end 650 top end. i am doing this conversion right now and was wondering which timing did you use?
on the bike cliff website there are 2 650 manuals, one states you line up the 2 on the exhaust sprocket and go back 19 roller pins for the 3 mark on the intake sprocket, the other manual says that its 20 roller pins from arrow to arrow. and the 550 also says 20 roller pins. i am using the the 550 cams and sprocket. was wonder which timing i should use on the conversion. ps all parts are from 1981 gs's

Tags: None zz0.vzymp7ax18

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