I have a 1977 115 Evinrude V4. It still has the stock prop on it and there are no markings anywhere on it. At WOT, I turn about 4400-4500 RPM going about 27-30 kts. What is the max WOT RPM supposed to be for this motor? I borrowed a friend's 4-blade composite prop that had an adjustable...
I have a 1992 90hp 3cyl. Mariner with the low oil warning module. There is no spark on any of the cylinders. It ran great last time was run - about 1 month ago.<br /><br />Resistance checks on the charge and trigger coils are within specifications. DVA checks on the charge coil and the...
1962 (or '63 ?) Johnson 75 hp Starflite IV electric shift (v-4) with automotive-style battery ignition (points, coil, and distributor - belt driven).<br /><br />I just bought this motor and am synchronizing the throttle and timing linkages. What are the idle-speed and WOT spark advances? Any...
Can a single bad (shorted or open) coil cause no spark on all cylinders?<br /><br />I had started having trouble starting my 1977 115 the last couple of trips previous to my troubles, and had to use starting fluid some. Once started, it was running great and would re-start very easily for the...
