need help rd-19-c 1958 35hp sea horse johnson

mntboy

Petty Officer 3rd Class
Joined
Jun 10, 2010
Messages
82
recently installed mukuni fuel pump, took it to the lake first time i pulled the cord boat cranked ran for a minute and died. So i pulled and pulledand it wouldn't hit a lick, screwed plugs out and pulled a few times to blow the gas out, screwed them bac in and it cranked ran for a minute and died, i did the samething again and it cranked again same thing died again. as long as i keep taking spark plugs out and drieng motor out it would crank only to die seconds after. Could some one tell me what is going on, its flooding its self to death i think but don't know how to solve probleme, also what should plugs be gaped? Any help would be appreciated.
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: need help rd-19-c 1958 35hp sea horse johnson

Compression 100+ psi and even on both cyls?

Spark (with plugs removed) jumps a 1/4" gap with a strong blue lightning like flame.... a real SNAP?

If the above areas are as they should be, suspect the carburetor needs cleaning and rebuilding.

S/plugs should be Champion J4C or J6C plugs, gapped at .030
 

mntboy

Petty Officer 3rd Class
Joined
Jun 10, 2010
Messages
82
Re: need help rd-19-c 1958 35hp sea horse johnson

the mukuni fuel pump should work on this boat shouldn't it, how do i test the compression? Also when i put lower unit dop in it i think there was gas in there, how could this be?
 
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