1985 1.6L OMC SEADRIVE

[hotwheels44]

I have a couple of questions regarding this motor. I have 16.5 ft monark and at full throttle motor speaks out at 5000 rpm at about 30-35 mph does seem about right for speed and max rpm? It seems that i shopuld be able to get more speed out of it with a small boat.<br /><br />2nd question- I recently incountered on my last trip that the boat would not get up on plane and top out full throttle at 3000 rpm. I found out it was only running on three cylinders. I replaced the coil and that did not fix it. what could it be maybe?<br /><br />Thanks for the help

 

[Joe Reeves]

Re: 1985 1.6L OMC SEADRIVE

First, check the compression. Should be in the 100+ psi range and even on all cylinders.<br /><br />Second, with the s/plugs out, check the spark. It should jump a 7/16" gap with a strong blue lightening like flame on all cylinders.<br /><br />If the above checks out okay, the usual problem is fouled carburetors. Let us know what you find.

 

[Solittle]

Re: 1985 1.6L OMC SEADRIVE

WOT for my 87 1.6L Sea Drives is 5500 rpm.