yamaha or tohatsu?

[Neil_M50D2]

Mr. Johnson, if you're in Mo. any time this year come to an NBRA race , you'll see 1 of the fastest FE runabouts Yamy powered all 42+cu. in..
Don't need no stinking 49.7 cu.in. LOL.
RichardKCMo

I understand thats a highly modified Yamaha 50. No one has taken the time to modify the Tohatsu/Nissan M50D2, which is very simular to the Yahama 50.
However, I percieve the parties in discussion here are more interested in a stock or semi-stock engine for drag racing. If displacement is not an issue, a larger Yahama or Tohatsu/Nissan would better serve their purpose.
Neil Bass

[RichardKCMo]

Also 42+ cu.in., i'll bet a lot of folks here don't what the parent Co. Name is.?
That Bass motor running looks and sounds good , starts good too.
RichardKCMo

I understand thats a highly modified Yamaha 50. No one has taken the time to modify the Tohatsu/Nissan M50D2, which is very simular to the Yahama 50.
However, I percieve the parties in discussion here are more interested in a stock or semi-stock engine for drag racing. If displacement is not an issue, a larger Yahama or Tohatsu/Nissan would better serve their purpose.
Neil Bass

[Fast Fred]

the Tohotsu is the most advanced, of them 50's, cuzz of the divider in the side tranfur ports, it torques better through the low and mid range.


maybe it's cuzz of the class or the rules or some thing, in "X" SLT you can run a 50hp moda, mod the crap out of it, it would just get Killed against
the 49,56 OMC the 52, 59,Merc the Yamaha 52

[tthibodaux]

You gettin all this? Sounds like the OMC is the way to go.

[tthibodaux]

How funny does iwannatohatsu sound?

[Roy Hodges]

Also 42+ cu.in., i'll bet a lot of folks here don't what the parent Co. Name is.?
That Bass motor running looks and sounds good , starts good too.
RichardKCMo

.................................................. ....................
- the bass motorator is a Tohatsu , look on the cowl, on the "Avatar". its a 42 incher. For what it is , is great motor. I saw one at the kilos at Oroville , last Saturday . Nice, and a guy running against it had a 44inch merc on a Mk55H tower , he said that Bass Machine motor goes like a stripe-ped *** ape.

[Neil_M50D2]

Cumoon guys, what is all this crapp you are writing if you are looking for the
fastest 50 hp. engine you are on the wrong side of the pond

Ever heard of a sertain Mr RAANA and his mod TOHATSU 50?

OK, I will bite. I have never heard of Mr RAANA nor do I understand what you want me to see in the photograph. I am truely interested, so do not take this to be other than honest.
Thanks,
Neil Bass

[tthibodaux]

OK, I will bite. I have never heard of Mr RAANA nor do I understand what you want me to see in the photograph. I am truely interested, so do not take this to be other than honest.
Thanks,
Neil Bass

Here we go..

[Mark75H]

you can´t see the trick from that angle you have to turn the engine around, you have to ask Mr. RAANA but he is on a trip to China so you won´t be hearing from him for a while , not sure if he is willing to share anyway.

Then what was the point of the picture?

[Fast Fred]

well, lets think about the exhaust port, stock, it's shape is oval, oval shape make for a wide power band, square off the top and the band becomes peaky,
more power?, no, just moved the peak, but a cleft on top on the right side of the exhaust port would make more power.