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Old 16 May 2019, 17:23   #1
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Country: UK - England
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Tohatsu m50d2

Starts up ok ticks over revs free then engage gear and revs but drops and slight misfit
Carbs off cleaned
Filters done
Fuel ends and lines done
Fresh fuel
New plugs
Any ideas
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Old 16 May 2019, 19:04   #2
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check the compression..have a look at the plugs while your at it...10 min job
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Old 16 May 2019, 19:48   #3
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Quote:
Originally Posted by Seabass and cuda View Post
Starts up ok ticks over revs free then engage gear and revs but drops and slight misfit

Carbs off cleaned

Filters done

Fuel ends and lines done

Fresh fuel

New plugs

Any ideas
Hi
I had same problem ? With 9.8 hp two stroke
Turned out to be main jet ! After cleaning and rebuild in carb long tube think with 6 or 8 side holes
bit off shit blocked one hole ! Or check for air leak on carb gasket ! When you clean them sometimes repeat it again !
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Old 17 May 2019, 00:27   #4
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First things I checked as good as new
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Old 17 May 2019, 07:10   #5
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found this has troubleshooting chart if you havent one. fuel pump diaphragm damaged/hole


http://www.tohatsu.de/media/docs/upl..._OM2016_en.pdf
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Old 17 May 2019, 08:10   #6
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Trying to find the parts for the pump as it’s built on to bottom carb
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Old 17 May 2019, 13:51   #7
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These guys are excellent. Tohatsu outboard engine parts - sales - service
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Is that with or without VAT?
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Old 18 May 2019, 15:36   #8
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Itíll be one of the coils, common fault on these
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Old 18 May 2019, 17:54   #9
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Yeah going to order one anyone know what size fuel pipe gos on the carbs
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Old 23 May 2019, 00:55   #10
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Coils definitely worth a shot, I've had it many times, feels like a fuel issue but most of the time it's a dodgy coil
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