Montauk: Re-Power with Yamaha 90-HP or E-TEC 90 Two-cycle Engines

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Author Topic:   Montauk: Re-Power with Yamaha 90-HP or E-TEC 90 Two-cycle Engines

Timk posted 07-27-2010 08:42 AM ET (US)
I have a 1992 Montauk with a 90-HP Evinrude. I am going to re-power and I have it narrowed down to two engines. One is a 90 HP 2 stroke Yamaha (the local Yamaha dealer bought some before Yamaha stop selling them). The other choice is a Evinrude 90hp E-TEC. The installed cost is a little more for the Yamaha. The advantage to the Yamaha as I see it is the weight, about 50-lbs less then the E-TEC. Does any one have any experience, good or bad, with [an] E-TEC?
Peter posted 07-27-2010 09:04 AM ET (US)
The Yamaha 90 is a good, proven engine, but it will use more fuel and oil than the 90 E-TEC. The heavier weight of the E-TEC is not a problem on the Montauk.
If I were in your situation, I would go with the E-TEC because it does not require complete re-rigging of your Montauk. Also, the self-winterization mode is a really nice feature for Northern climates.
Buckda posted 07-27-2010 09:32 AM ET (US)
TimK -
Contact forum member Meridian (Terry). He has a Montauk with a 90 HP E-TEC that he runs on Lake Michigan. He can provide you with firsthand knowledge of how this boat/motor combination run.
I owned two 2006 90 HP E-TEC engines (mounted to my 18' Outrage), and was very happy with the fuel economy, oil use (XD-100 setting) and overall noise/comfort experience when operating the boat.
I'm back to "old school" carburetor motors on my "new-to-me" boat and miss the E-TEC's very much.
Regards,
Dave
Tohsgib posted 07-27-2010 10:45 AM ET (US)
The Yamaha should be about $5k and the E-Tec about $7k(engine only). The Yamaha would disappoint you as far as performance goes compared to what you are running. Lighter weight is not necessarily better. You will be very pleased with the e-tec and it's efficiency. She will burn half of what you burn now, the Yamaha won't. Resale will be better as well and you can use your prop and controls, etc.
freetime99 posted 07-27-2010 10:25 PM ET (US)
Has anyone tried a Yamaha F90 four-cycle motor on [a boat of the] same type [as a Boston Whaler MONATAUK 17]? Is weight [a concern] there? [The Yamaha F90 four-cycle outboards] seem like really nice engines.
jimh posted 07-27-2010 10:31 PM ET (US)
The Yamaha 90-HP two-cycle is a nice classic two-cycle outboard, with all of the good and bad features. The E-TEC 90-HP is a modern two cycle engine, with all of the good features of the classic two-cycle and none of the bad features.
freetime99 posted 07-28-2010 09:14 PM ET (US)
[Changed TOPIC]
If the choice is between [Yamaha] 90-HP two-cycle or four-cycle motors, which is best on a 17 Montauk?
jimh posted 07-28-2010 11:48 PM ET (US)
The E-TEC 90-HP might weigh a bit more than the Yamaha 90-HP two-cycle, but the E-TEC will have the following advantages:
--starts amazingly fast, actually better than most cars start;
--no smoke, no soot, very clean emissions, better than most low-emission outboards;
--idles down to 450-RPM and will run all day like that while burning miniscule amounts of fuel due to stratified charge combustion chamber design; the fuel economy advantage at idle and low speeds is very significant;
--less noise, less vibration, and no harsh running characteristics.
And you say the price of the E-TEC is less than the conventional old-technology Yamaha 90--that is a good deal.
dgoodhue posted 07-29-2010 06:05 AM ET (US)
If I was buying a new motor, I would buy a motor with new technology.
Blackduck posted 07-29-2010 08:30 AM ET (US)
A little less for the installed E-tec? No-brainer, go with the E-tec.
boatdryver posted 07-29-2010 10:45 AM ET (US)
our local sailing club 2 weeks ago replaced a blown 40 HP Evinrude/Suzuki, which had 1989 OMC controls and tachometer with 3 warning lights, with a 2011 40 HP Etec.
The OMC controls and the tach were re-used. We had only to purchase a new prop as the old motor had a Suzuki lower unit and prop. We took the boat to the dealer with the old motor removed.
Total cost after buying the motor? $330 for motor installation and prop.
The cost of Yamaha gages and controls would have been about $750 plus installation.
JimL
Timk posted 07-29-2010 02:43 PM ET (US)
Thanks for all the input, I decided to go with the E-Tec 90 HP. It should be installed in a few weeks, I will let you know how it works out. Thanks

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Author	Topic: Montauk: Re-Power with Yamaha 90-HP or E-TEC 90 Two-cycle Engines
Timk	posted 07-27-2010 08:42 AM ET (US) I have a 1992 Montauk with a 90-HP Evinrude. I am going to re-power and I have it narrowed down to two engines. One is a 90 HP 2 stroke Yamaha (the local Yamaha dealer bought some before Yamaha stop selling them). The other choice is a Evinrude 90hp E-TEC. The installed cost is a little more for the Yamaha. The advantage to the Yamaha as I see it is the weight, about 50-lbs less then the E-TEC. Does any one have any experience, good or bad, with [an] E-TEC?
Peter	posted 07-27-2010 09:04 AM ET (US) The Yamaha 90 is a good, proven engine, but it will use more fuel and oil than the 90 E-TEC. The heavier weight of the E-TEC is not a problem on the Montauk. If I were in your situation, I would go with the E-TEC because it does not require complete re-rigging of your Montauk. Also, the self-winterization mode is a really nice feature for Northern climates.
Buckda	posted 07-27-2010 09:32 AM ET (US) TimK - Contact forum member Meridian (Terry). He has a Montauk with a 90 HP E-TEC that he runs on Lake Michigan. He can provide you with firsthand knowledge of how this boat/motor combination run. I owned two 2006 90 HP E-TEC engines (mounted to my 18' Outrage), and was very happy with the fuel economy, oil use (XD-100 setting) and overall noise/comfort experience when operating the boat. I'm back to "old school" carburetor motors on my "new-to-me" boat and miss the E-TEC's very much. Regards, Dave
Tohsgib	posted 07-27-2010 10:45 AM ET (US) The Yamaha should be about $5k and the E-Tec about $7k(engine only). The Yamaha would disappoint you as far as performance goes compared to what you are running. Lighter weight is not necessarily better. You will be very pleased with the e-tec and it's efficiency. She will burn half of what you burn now, the Yamaha won't. Resale will be better as well and you can use your prop and controls, etc.
freetime99	posted 07-27-2010 10:25 PM ET (US) Has anyone tried a Yamaha F90 four-cycle motor on [a boat of the] same type [as a Boston Whaler MONATAUK 17]? Is weight [a concern] there? [The Yamaha F90 four-cycle outboards] seem like really nice engines.
jimh	posted 07-27-2010 10:31 PM ET (US) The Yamaha 90-HP two-cycle is a nice classic two-cycle outboard, with all of the good and bad features. The E-TEC 90-HP is a modern two cycle engine, with all of the good features of the classic two-cycle and none of the bad features.
freetime99	posted 07-28-2010 09:14 PM ET (US) [Changed TOPIC] If the choice is between [Yamaha] 90-HP two-cycle or four-cycle motors, which is best on a 17 Montauk?
jimh	posted 07-28-2010 11:48 PM ET (US) The E-TEC 90-HP might weigh a bit more than the Yamaha 90-HP two-cycle, but the E-TEC will have the following advantages: --starts amazingly fast, actually better than most cars start; --no smoke, no soot, very clean emissions, better than most low-emission outboards; --idles down to 450-RPM and will run all day like that while burning miniscule amounts of fuel due to stratified charge combustion chamber design; the fuel economy advantage at idle and low speeds is very significant; --less noise, less vibration, and no harsh running characteristics. And you say the price of the E-TEC is less than the conventional old-technology Yamaha 90--that is a good deal.
dgoodhue	posted 07-29-2010 06:05 AM ET (US) If I was buying a new motor, I would buy a motor with new technology.
Blackduck	posted 07-29-2010 08:30 AM ET (US) A little less for the installed E-tec? No-brainer, go with the E-tec.
boatdryver	posted 07-29-2010 10:45 AM ET (US) our local sailing club 2 weeks ago replaced a blown 40 HP Evinrude/Suzuki, which had 1989 OMC controls and tachometer with 3 warning lights, with a 2011 40 HP Etec. The OMC controls and the tach were re-used. We had only to purchase a new prop as the old motor had a Suzuki lower unit and prop. We took the boat to the dealer with the old motor removed. Total cost after buying the motor? $330 for motor installation and prop. The cost of Yamaha gages and controls would have been about $750 plus installation. JimL
Timk	posted 07-29-2010 02:43 PM ET (US) Thanks for all the input, I decided to go with the E-Tec 90 HP. It should be installed in a few weeks, I will let you know how it works out. Thanks