Re: Re: Re: 135 hp Evinrude Starflite

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Posted by Ed Mc. ( on October 28, 2005 at 20:31:43:

In Reply to: Re: Re: 135 hp Evinrude Starflite posted by Michael on October 28, 2005 at 20:01:40:

Michael, the info tag should be riveted to the side of one of the transom mounting brackets, on the part which would be outside the transom as the motor hangs on the boat. If you can't find a plate, usually there's a 'slug' on the block (somewhere on top, fwd of the heads) with the #'s on it. A little smaller than a quarter if I recall.

BTW, the 135 is a honkin' screamin' motor and it's pumping a lot of compression at 150 psi. Be sure that you use the best premium non-alcohol fuel you can buy. These motors are prone to detonation on marginal fuel (what fuel isn't marginal nowadays!), so be careful of that. OMC has put out a modified (thicker) head gasket for these motors, which will lower compression a bit and make them be a little less high-strung and also less likely to burn up from detonation!

Be sure your timing is adjusted correctly as too much spark advance will toast the motor (same thing as what can happen to the Merc Inline 99 C.I. Six's). You might even consider retarding the max timing a few degrees for good measure.

Better to have a bit less top end but have a reliable motor! Also make sure your cooling system, (thermostats, poppets, and impeller) are up-to-snuff as you need to expel all the heat this motor can produce.

Use a premium oil, either mfr's, or a good aftermarket oil such as Penz Synth Blend which is available at most Wal-Marts for a decent price.

Be wary of aftermarket fuel priming bulbs as there's been a lot of posts lately in various boating forums of folks having trouble with defective check valves restricting fuel flow. Running lean is Very Bad for this motor so stick with mfr's item on this. Make sure the rest of your fuel system has no delivery problems and is capable of feeding this monster!

Use nothing but the recommended spark plugs since too hot of a heat range will also smoke this motor.

If you're into performance, you'll find lots of info at the forums. Many knowledgable Johrude Guru's there who can likely fill you in on the ins-and-outs of your motor.


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