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Message Subject: 115 Yamaha 4 Stroke/115 Optimax

TECK

Posted 3/29/2009 10:05 AM (#369019 - in reply to #365291)
Subject: Re: 115 Yamaha 4 Stroke/115 Optimax

Posts: 670

Location: Minnetonka , MN.

I have a 115 4 stroke and would rather have the Optimax. I have had no problems
with the 4 Stroke but the Optimax uses less gas and better at getting up to speed.

surf n turf

Posted 4/1/2009 1:32 PM (#369607 - in reply to #365279)
Subject: RE: 115 Yamaha 4 Stroke/115 Optimax

Posts: 14

When you get out to parts of the world where people aren't nearly as brand loyal and just need something reliable you will find a lot of Yamaha 4 strokes hanging off the backs of boats. I've read that the newer Optis are a lot better than the earlier models with all the powerhead problems but you can't argue the track record of the Yamaha 4 strokes. Also taking into consideration of how many there are out there.

Herb_b

Posted 4/1/2009 1:55 PM (#369609 - in reply to #369607)
Subject: RE: 115 Yamaha 4 Stroke/115 Optimax

Posts: 829

Location: Maple Grove, MN

I don't think the 115 Opti had power head problems. I believe the only Optis that had trouble were the large 175 HP and larger models with 6 cyclinders. The problem was with cyclinder 6 running to lean. I believe the 115 has 4 cyclinders and so it doesn't have that problem.

No motor is perfect though. Sometimes my Yamaha adds gas to the oil if I troll to much in cold weather without warming the motor up enough. I find that its important to get the motor warmed up good by hammering it a little before a trolling run and its best to hammer it a little between trolling runs. The motor just seems to cool down a little to much at times in cold weather and doesn't always burn all the gas. The unburned gas leaks down into the oil pan and then you just have to change oil an extra time. Its no big deal. Its easily preventable and just something to be aware of.

I plan to run my 2003 Yamaha for many years. Based on my experience so far, I should be able to.

Good luck with whatever you buy.

MuskyRuss

Posted 4/1/2009 6:01 PM (#369658 - in reply to #368271)
Subject: RE: 115 Yamaha 4 Stroke/115 Optimax

Posts: 181

Location: Valparaiso, Indiana

E-Tec

check it out

http://www.youtube.com/watch?v=_-7I00cZUE0

Herb_b

Posted 4/2/2009 12:52 PM (#369783 - in reply to #369658)
Subject: RE: 115 Yamaha 4 Stroke/115 Optimax

Posts: 829

Location: Maple Grove, MN

The E-Tecs look like very good motors too. Light and fast and they look cool.

I would ignore their claim about "no maintence for three years" though. Sorry, but every motor needs to be winterized and spark plugs do not last forever. Any motor that is used very much can benefit from fresh or at least properly re-gapped plugs once a year. Every motor needs some routine maintenance. Even lawn mowers need a little maintenance from time to time.

Because E-Tecs also have a high-pressure fuel injection system, bad gas can cause them trouble just like a Yamaha four-stroke. The mechanic at Hannay's that fixed my Yamaha last year told me that it is a really good idea to add the ten micron gas filter on the E-Tecs too. Those filters can save you a lot of trouble and its no big deal to install or change out once a year. Just something to be aware of.

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