smoking

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PUMPIT

Recruit
Joined
Dec 8, 2002
Messages
5
have a chrysler 105 hp smoking very bad at low idle/ trolling, no smoke at all when i have it wide open
 
OBJ

OBJ

Supreme Mariner
Joined
Dec 27, 2002
Messages
10,161
Re: smoking

One of two things come to mind PUMPIT....fuel mix is a little high or the engine isn't coming up to operating temp. Feel the flat area on top just forward of the head while it's idling and see if it feels cool to the touch. If it does, may need a change out on the t-stat.
 
R

rbruce63

Petty Officer 1st Class
Joined
Aug 30, 2003
Messages
212
Re: smoking

A 50:1 premix of gasoline to oil is recommended for all motor speeds up to the wide open throttle range for this motor. Therefore, it will have too much oil at slow trolling speeds and the motor will smoke. I wouldn't try using 100:1 premix if you were trolling as these motors were not designed for it, however, in theory this should curtail the smoke a bit.
 
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