See full version: Torque for flywheel on 1975 9.9 johnson outboard
Double check your points gap, .020", anything dramatically more or less may throw timing off enough not to fire. These need to be set at the highest part of the cam lobes and if off just a slight bit, can effect the timing.
Therefore, it is critical to get points perfectly set on the mark. On twins, it is even more critical because it affects the balance of the power impulses which are traveling through all the moving parts, and can cause at a minimum, poor performance, moderate vibration, and if really out of synch, it can wear out and break things eventually.
Timing Plate : If you have to remove this timing plate, there are 4 screws that need to be removed from the top that attach the timing plate to the timing plate base. These screws are marked by the red arrows as shown below. Note that 2 of them also hold the coils in place. If you take it apart enough that the coils are loose, be sure that they settle down inside the small protrusions of the plate when you reassemble them.
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These also work great where the timing plate bearing is so loose that each rotation changes the timing plate location, which in turn changes the points setting.
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Hello, We do not have an answer for that but it might need a 1-5/16" socket and its dimensions 0.12lbs / 1.50in length X 1.50in width X 0.50in height. Thank you -- Andrés Nasser Crowley Marine 1-800-580-0720
We do not have one in stock to check at the moment, but it should take a 1-5/16" socket. more
Repowered my 94 Boston Whaler Rage14 Turbo Jet. I would personally like to thank Wade for all of his help, above and beyond what I expected from over the phone. Two of my local marinas couldn't be bothered with helping me get this project under way. One of them is a BRP franchise. I had part numbers and descriptions of everything I needed. They said "those parts are old and no one stocks them anymore". I wanted to keep my money local and help my community but if you don't want to sell something that is still available. I'll spend my money at a company that took the time to get it right. Thanks again Wade. Tom Summers, Niles MI. boat named "Going Propless"
not torquing down the flywheel nut. i believe it is 70 ft lbs. but look it up.
Torque that flywheel nut to 40-45 ft. lbs. more
As said, once you shear the first one it causes damage. Shear the second one and it causes more damage, The third----etc. SO, check the tapers. They must be virtually perfect. The key slots must not be battered. If everything is still serviceable, proceed--