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hi guys i have a 16' 1980 thundercraft with a 1977 johnson 140. with four people in the boat im getting about 68km/h. i just installed a tach today and did not know what the rpms were befor. i just installed a 12 3/4 with a 21'' pitch. there was a 13x19 prop on it befor but i never got to test...
hi i have a 1977 johnson 140 outboard. during the starting procedure i am suppose to lift the warm up lever then choke and crank the motor. my problem is that when i lift the warm up lever it does not advance the timing on the motor. If i manually advance the timing on the motor by pulling it...
Hi guys i have a 1980 thundercraft 16' boat with a 1977 johnson 140hp outboard. the propeller on the engine was damaged and i never got a chance to try it out. it was 13x19. i just got a new prop today it is 12-1/4x21 and i was wondering if this was too high of a pitch for my boat?is there a...
