I have a 90HP, 1987 Yamaha with Autolube.<br />I also have a gauge indicating oil level (3 diodes giving light according to oil level).<br />Can anybody help with the wiring of the gauge?<br />Does it also need ground and 12V in addition to the wires from the oil sensor in the oiltank?<br />(And...
Just changed the engine on my boat from a 90Hp Yamaha with a 1375X13 propeller, to a 150HP Johnson equipped with a 1425X23 propeller. With the Yamaha i could reach 5500rpm , but i do not seem to get above 4300 with the Johnson.<br />The boat is around 2200 lbs, and I think the current propeller...
Just changed the engine on my boat from a 90Hp Yamaha with a 1375X13 propeller, to a 150HP Johnson equipped with a 1425X23 propeller. With the Yamaha i could reach 5500rpm , but i do not seem to get above 4300 with the Johnson.<br />The boat is around 2200 lbs, and I think the current propeller...
My rebuild 150 Johnson is causing me great frustration.<br />Here is the story:<br />- 90psi compression on all cylinders (+/- 4)<br />- spark on all plugs<br />- New Powerpack<br />- Spark plugs appear brownish and dry on one side, and brownish but slightly wet on the other side.<br />- No...
The engine seem to intermittent misfire on one or 2 cylinders. In neutral and idle all cylinders fire, no problem getting 5500rpm. In forward on water 3000-3400 is max. If backing off the throttle i notice that at least one cylinder tries to fire, but only intermittently.<br />It is not a gas...
