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Old 04 August 2011, 16:24   #11
Country: Finland
Town: Helsinki
Boat name: SR 5.4
Make: Avon
Length: 4m +
Engine: Toh1 3,5 Yam 90/2S
Join Date: Oct 2009
Posts: 896
Here You can find and download the manual:

Tohatsu Outboards: Authorized North American Distributor for Tohatsu Outboard Motors, Parts, & Accessories.

And here the parts

Tohatsu Outboard Parts - Parts Books

fun on a boat is inversely proportional to size...sort of anyway
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Old 04 August 2011, 16:35   #12
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Country: Ireland
Town: Bangor
Boat name: Lencraft 4.8m
Make: Lencraft
Length: 4m +
Engine: DT55HP Suzuki
Join Date: Jul 2011
Posts: 469
nice one!



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Old 09 October 2013, 03:13   #13
Country: Australia
Town: Brisbane
Make: Zodiac
Length: 4m +
Engine: 30HP Mercury
Join Date: Oct 2013
Posts: 1

I have a 2012 Mercury 30HP outboard ME30MHLITE2S
30 HP MH Lite 2 Stroke Short Shaft (Made in Japan).

Is it also a Tohatsu and has it an air restriction plate and throttle adjustments to reduce power? If so can I modify it to make more power?


Originally Posted by Locozodiac View Post
Hola Steve

If your Mariner 30 HP model engine looks like this photo, is a disguissed Tohatsu outboard made in Japan and exported to USA for Mariner/Mercury brands with their own characteristic logos and colours. 25 & 30 HP has the same cc, that is 430, the 25 HP has an air restriction plate on the carb entrance and throttle adjustments to lessen power.

What manual are you looking for, owners manual, spare parts manual ? Have all the requested information available, I'm a Tohatsu dealer, just email me to send whatever info you need. Pleased to lend you a hand.

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Old 10 October 2013, 19:21   #14
Country: Australia
Town: Melbourne
Boat name: Shark attack
Make: Stacer
Length: 3m +
Engine: 30hp Outboard
Join Date: Apr 2010
Posts: 19
Only the 25hp 'detuned' models can be upgraded to produce 30hp by removing the carby restrictor and advancing the ignition timing. Your 30hp already produces 30hp, the difference compared to the 25hp is only noticeable at WOT as this is where the fuel flow really matters. Other possible ways to maximise the power output of your engine could be to ensure it is mounted correctly and that you are using the best prop for your rig.

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