Jerry Ahrens wrote:The big disadvantage of the 4 stroke fishing motors (IMO) is the weight. the carbureted models don't do well setting around with old gas in them.... ethanol is a death sentence to the fuel system. To be fair though, many of these engines that fail to start or are hard to start, is due to lack of proper care and maintenance. Like I always say, fill it up with ethanol, go fishing, push the stop button and put it in storage... The tiny passages in the Japanese carburetors are easily plugged. On the other hand, if cared for properly, they are nice running engines. I have a 2003 115 Merc (fuel injected) in the shop right now, that has set for 2 years with old gas in it. I'm not sure if it had ethanol in it or not. It was running on 3 out 4 cylinders, once we were even able to get it to start. But again, it was just turned off and left setting, so it's hard to blame the engine.
twostroke wrote: My poor old pontoon boat that my wife and I use on almost a daily basis when the water isn't 'hard' has a 30 yr old OMC twin that just plain runs.
outbdnut2 wrote:twostroke wrote: My poor old pontoon boat that my wife and I use on almost a daily basis when the water isn't 'hard' has a 30 yr old OMC twin that just plain runs.
My Dad bought 1987 30 Evinrude new back then when he bought his pontoon which I now have. Like your similar or same motor - yes - it always ran....but....like a lot of those era OMCs in that HP range, it had a fairly wide throttle range where it did not run smooth as it was in transition from the low to hi speed carb jets. The speed we want to idle around the lake is in the middle of that rough running range. I could only alter that slightly by adjusting the low speed carb needle, and then it didn't idle well at slower speeds. This rough running and "4-cycling" of the 2-stroke engine made it noisier and it was marginally Ok until my wife took a ride on a neighbor's pontoon with a 4-stroke. I didn't hear the end of it until 2004 when I bought a new 25 Yamaha 4-stroke for it. I've noticed on several similar motors, this rough-running throttle range is (in my opinion) unacceptably wide.
twostroke wrote:Yeah. My boat gets run WFO twice a year. Across the lake when I put it in....and across the lake when I'm taking it out.