Montauk Re-power with TOHATSU TLDI 90
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- Posts: 22
- Joined: Mon May 09, 2016 3:58 pm
Montauk Re-power with TOHATSU TLDI 90
Getting closer to re-powering a [1973] Montauk. I use my boat for fishing. I am intrigued by the Tohatsu TLDI 90. It seems like a good fit for the classic hull and is a good value. I just don't see them around here . A couple of people I respect have had good success with smaller Tohatsu engines. I appreciate any input on [re-powering a Boston Whaler MONTAUK 17 with a TOHATSU 90 TLDI). Thanks--Joe
1974 Montuak
2021 Yamaha F70
2021 Yamaha F70
Re: Montauk repower
The Tohatsu brand has a good reputation but it is not a high volume seller in the US. I recall there could be a relationship to Nissan outboards.
I would not be concerned, a good choice.
I would not be concerned, a good choice.
1992 Outrage 17
2019 E-TEC 90
2018 LoadRite 18280096VT
Member since 2003
2019 E-TEC 90
2018 LoadRite 18280096VT
Member since 2003
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- Posts: 199
- Joined: Sat Oct 24, 2015 12:12 pm
- Location: Florham Park NJ / Punta Gorda FL
Re: Montauk Re-power with TOHATSU TLDI 90
The Tohatsu TLDI 90 is a fine choice - 337lbs, 1267cc, 5 year warranty. The technology is similar to a Mercury Optimax using an air assisted direct fuel injection system. As stated over and over on this forum - one of the deciding criteria should be your relationship with your local dealer.
Member since 2005
2005 170 Montauk, 2010 E-TEC 115 H.O.
2016 210 Montauk, 2017 E-TEC G2 200 H.O.
"Red sky at night, sailor’s delight - Red sky in the morning, sailor’s warning”
2005 170 Montauk, 2010 E-TEC 115 H.O.
2016 210 Montauk, 2017 E-TEC G2 200 H.O.
"Red sky at night, sailor’s delight - Red sky in the morning, sailor’s warning”
Re: Montauk Re-power with TOHATSU TLDI 90
Is there a big difference in price between the 90-HP Tohatsu and E-TEC, Mercury, and Yamaha?
Re: Montauk Re-power with TOHATSU TLDI 90
I just re-powered a '79 Montauk with a Tohatsu TLDI 90. Also considered an E-Tec. Tohatsu was $1600 less and my marina is a Tohatsu dealer. I have about 6 hours on the new set up and I'm very happy. Obviously, it still has some breaking in to do before I really open it up.
Re: Montauk Re-power with TOHATSU TLDI 90
I'll add that my marina has quite a few Tohatsu engines under 100 hp spanning 20 years and I hardly ever see any needing mid-season repairs.
Re: Montauk Re-power with TOHATSU TLDI 90
Tohatsu as a brand in North America is relatively obscure. They just don't compete effectively here. But Tohatsu as a manufacturer of outboard engines, particularly smaller horsepower outboard engines, is very well known. Tohatsu makes many small outboard engines that end up being painted, decorated, and branded with other, better-known names, like Mercury and Evinrude. Tohatsu operates a large plant for manufacturing of outboard engines in Komagane, Nagano Prefecture, Japan.
TLDI stands for Two-cycle Low-pressure Direct Injection, and is a variant of the ORBITAL COMBUSTION PROCESS. I assume Tohatsu is licensing it from Orbital. The only other outboard brand to use the Orbital Combustion Process is Brunswick's Mercury OptiMax, which now has mostly been rebranded as Brunswick's Mercury ProXS line.
This article from a New Zealand magazine has good information:
http://www.jacksonbrown.co.nz/site/wp-c ... _MD90B.pdf
TLDI stands for Two-cycle Low-pressure Direct Injection, and is a variant of the ORBITAL COMBUSTION PROCESS. I assume Tohatsu is licensing it from Orbital. The only other outboard brand to use the Orbital Combustion Process is Brunswick's Mercury OptiMax, which now has mostly been rebranded as Brunswick's Mercury ProXS line.
This article from a New Zealand magazine has good information:
http://www.jacksonbrown.co.nz/site/wp-c ... _MD90B.pdf
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- Posts: 22
- Joined: Mon May 09, 2016 3:58 pm
Re: Montauk Re-power with TOHATSU TLDI 90
I appreciate the input ! Repower is not an easy decision for me.
Thanks. Joe
Thanks. Joe
1974 Montuak
2021 Yamaha F70
2021 Yamaha F70
Re: Montauk Re-power with TOHATSU TLDI 90
I had a 2005 Tohatsu 90 TLDI on my 1977 Outrage 21. The boat made over 100 trips out of the harbor every year for 9 years. It never went back to the dealer. I changed spark plugs twice and the water pump impeller once, that was it. It finally lost compression in one cylinder and I sold it and it still looked almost new. I only hope my new E-TEC 115 is that dependable.