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Old 28 May 2013, 14:34   #1
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Country: Finland
Town: Helsinki
Boat name: SR 5.4
Make: Avon
Length: 4m +
Engine: Toh1 3,5 Yam 90/2S
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The Ultimate engine !

Just purchased this beast...Tohatsu 1 hp(at 6500 rpm) aircooled, age unknown.
Wonder is this maybe the lightest outboard ever made, guess its like 5 kg.

Cleaned tank an carbs, started on the second pull! The sound was "big" but the size of the prop is like on a RC boat, very, very tiny.

Oil mixture is mentioned to be 1/30 but wonder, should i use outboard grade or chainsaw grade....Anyone had this engine, think its a rare motor?

Now I only need a very light sib, then its a truly portable combo!
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Old 28 May 2013, 14:38   #2
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Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
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I'd use chainsaw grade.Apparently TCW3 doesn't like high temps much.
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Old 29 May 2013, 15:56   #3
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Country: Finland
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Make: Avon
Length: 4m +
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Originally Posted by Nos4r2 View Post
I'd use chainsaw grade.Apparently TCW3 doesn't like high temps much.
Your probably right, guess it gets pretty hot compared to water cooled engines.
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Old 31 May 2013, 19:24   #4
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Country: Other
Town: Lima-Peru
Boat name: Nautile
Make: Sea Rider Boats
Length: 4m +
Engine: Tohatsu 18 /30 HP
Join Date: Sep 2007
Posts: 1,706
Congrats, very nice mint condition engine and still working as in the good old days. Although just 1 HP, much better than rowing. That model should be the first produced in Japan, being Tohatsu the oldest outboard manufacturer far away than Yam being second. This nice oldie should come inmediately after...

Happy Boating
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Old 01 June 2013, 04:29   #5
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Country: UK - England
Town: Bournemouth
Boat name: Seadrive
Make: Capelli Tempest 470
Length: 4m +
Engine: Suzuki DF70
MMSI: 235079113
Join Date: Jul 2008
Posts: 540
where's the kill cord?
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Old 01 June 2013, 05:12   #6
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Country: UK - Channel Islands
Town: Jersey
Boat name: Archangel
Make: Ribcraft
Length: 6m +
Engine: ETec 225
MMSI: 235063789
Join Date: Sep 2008
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I bet that consumes less petrol than my ETec.
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Old 01 June 2013, 05:25   #7
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Country: UK - England
Town: Sticks, N.Yorks
Boat name: Tamanco
Make: Honwave 3.5AE
Length: 3m +
Engine: Tohatsu Outboard
Join Date: May 2012
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I bet that consumes less petrol than my ETec.
Probably uses less than my Zippo lighter.
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Old 02 June 2013, 07:48   #8
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Country: Finland
Town: Helsinki
Boat name: SR 5.4
Make: Avon
Length: 4m +
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Join Date: Oct 2009
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Quote:
Originally Posted by Locozodiac View Post
Congrats, very nice mint condition engine and still working as in the good old days. Although just 1 HP, much better than rowing. That model should be the first produced in Japan, being Tohatsu the oldest outboard manufacturer far away than Yam being second. This nice oldie should come inmediately after...

Happy Boating
Yes, it seams to be in good condition, no rust. Checked also under the hood, parts had a surprisingly nice finish and quality looks good too. Haven't tested it on the water, but will do asap.

Finding parts if needed might me impossible. This was an engine wanted to have as a kid but never got, so had to buy it now Paid 150 euros, not cheap considering i don't actually need it, but not too much either....At least i does not take much space!
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