Smokey motor

[k4m]

I am new to boating and have just bought a 1999 Bayliner Capri, with a 115 merc o/b 2 stroke. I knew that buying a 2 stroke I would have to put up with a little more smoke smell then a 4 stroke, but it was part of the package. The motor has very low hours and has been checked by a marine mechanic.<br /><br />Is there anything I can do to reduce the smoke smell.<br /><br />Also what is the best and cheapest way to get more speed.

 

[k4m]

Re: Smokey motor

x

 

[Johnsonzzzz1]

Re: Smokey motor

Use a diffrent oil. A syntetic would probably be the best. And maybe the oil pump is set to high. <br /><br />A properly tuned 2 stroke should show very little if any smoke at all.

 

[Yepblaze]

Re: Smokey motor

Don't dally around the ramp for extended periods. get out there and run it good. Remember if the wind is to your back at slow speeds you will catch a wiff. If you have past the warranty you might try other oils that you might find more aromatically pleasant. Like the synthetics or semi synthetics.

 

[sho305]

Re: Smokey motor

I like the Tech brand at Walmart by the gallon. I only see smoke from my 73 merc when I start it, and none otherwise. I can smell it if I get my nose down there by the motor, but since I can not reach the throttle from there it's no fun. It also makes my weedeater smoke very little compared to most other oils.

 

[Spidybot]

Re: Smokey motor

First of all you have to make sure you're using the motor according to the manual.<br /><br />It has a built in tank for oil - if you by mistake use both this and use premix you'll run double oil and have a lotta smoke.<br /><br />Next, avoid extended running periods of idle.<br />Your motor has a system that runs 2 cylinders only when below 1800 rpm. It tends to smoke if it's run around just under and above 1800 for some time.<br /><br />If you're concerned about the smell rather than the smoke, keep speed up.<br /><br />The easiest & cheapest way to get more speed is to make sure your motor, boat and hull is as easy as possible to move through the water. Check your prop, reduce weight, distribute weight, reduce wind resistance (canopy, suntop, bimini) trim your motor. Then read your tachometer to see if your within WOT range and decide if you want to change the prop.<br /><br />If so, do your homework (search this board) to find the optimal prop for your needs.<br /><br />If you want more power, get a new motor. The Merc 115 is one of the largest 4-cyl.s and therefore the last step before a jump in mpg.