• Enter the March CB750 Supply gift certificate giveaway! It's easy... Click here, post something, and you're entered into the drawing!

Rapidly fluctuating vacuum on sync gauges

DutchDaye

CB750 New member
Messages
1
Reaction score
0
Points
1
Location
Ohio
1980 dohc came to me as non runner carbs in pieces got them all cleaned up and together. Bike starts but sync gauges are all 4 rapidly bouncing in wide arc. Make me think timing or valve adjustment. But I'm a harley guy haven't worked on a cb in more yrs than I care to remember. Any pointers in a direction would me much appreciated
 
Back
Top