1991 150hp johnson fast strike

[deadtreejohnson]

need help bad
starter fuse h

need help bad
starter fuse had blown long time back.
now having problems with starting turn the key nothing i check the fuse not blown then engine starts. then after time turn key nothing tighten all starter/solenoid nuts checked wires on harness then it cranks wait a while nothing jiggle wires on side of engine at main connection it cranks could it be the igntion switch HELP driving me crazy

 

[roederll]

Make sure all the wires going

Make sure all the wires going to key switch are tight first.

 

[deadtreejohnson]

i've tighten all the switc

i've tighten all the switches even replaced the part of wire harness and now engine will crank but now engine will not run wide open runs good at 4500rpm's spits and sputters at 5000rpm's