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

Search results

  1. R

    High compression in 3 cyl

    I picked up an ugly CB750 for Freeeeeeee. I started going through the motor checking spark and compression and came across something strange. Cyl 1,2,&4 all show 135-140. Cyl 3 shows 235+ psi compression. What could cause it? I pulled the valve cover to see if I could see if the exhaust...
Back
Top