[Kane_Thorp]

How can I get my 50 two stroke up to at least a 70? Aren't there people who can change the computer or something? Or can I do something to it? Looking to spend less than 500$. Thanks a ton.

 

[AfterHours2]

Sell your motor and buy a 70. If it were that cheap and easy then everyone would be buying 20 ponies below what is needed..

 

[Rediculous]

Bore it out, and put a supercharger with a 9lb pulley. A set of flowmasters and maybe some NOS wouldn't hurt either....

 

[Master_Baiter]

I have heard of people changing out carbs from bigger motors. I've been trying to do that to my 98 6hp mercury. I can't find anything on it though. did you check that?

 

[fsae99]

Typically this is only feasible when your motor is a built on the same platform as a larger HP motor.

Example any of the motors below could be made in to 35 HP fairly cheap because the 20 is the same platform as the 35.

Johnson OB's
2 cylinder, 521 cc platform, 20/25/30/35 HP
15 inch shaft, rope start -- 115 lbs
15 inch shaft, elec. start -- 118 lbs
20 inch shaft, rope start -- 117 lbs
20 inch shaft, elec. start -- 120 lbs

 

[DuckNut]

You want to increase your HP by nearly 50% by changing he computer on a 2-stroke.

I just saw an ad that showed Dell was having a sale. If you buythe shiny black one that will get the job done.