Repowering

[Floatingtaco]

I have a 1988 GW tournament 190 and thinking about repowering. any suggestions on engine brand, HP, 2 or 4 stroke would be appreciated and I currently have a Yamaha 175 2 stroke on it

 

[Peahead]

Being almost as light as a 200hp 2 stroke I'd look at the Yamaha 2.8l F200 inline-4 (4 cylinder 4 stoke). It has great torque, efficient fuel consumption with a solid reputation so far. I've heard of the odd thermostat needing replacement ( after 400-500 hrs) on the earlier ones but thats about it. I re-powered from a 200 HPDI to a new 2015 200 inline 4 and love it. Many boats have them now up here in BC and its a popular twin re-power partially due to their light weight. Came out in 2012/2013 as I recall . The hole shot is a tad slower than my 200 2 stroke but once up on plane its mid range torque is surprisingly good.


http://yamahaoutboards.com/F200

 

[seasick]

Being almost as light as a 200hp 2 stroke I'd look at the Yamaha 2.8l F200 inline-4 (4 cylinder 4 stoke). It has great torque, efficient fuel consumption with a solid reputation so far. I've heard of the odd thermostat needing replacement ( after 400-500 hrs) on the earlier ones but thats about it. I re-powered from a 200 HPDI to a new 2015 200 inline 4 and love it. Many boats have them now up here in BC and its a popular twin re-power partially due to their light weight. Came out in 2012/2013 as I recall . The hole shot is a tad slower than my 200 2 stroke but once up on plane its mid range torque is surprisingly good.


http://yamahaoutboards.com/F200

I agree on the F200 inline. It is an ideal match. One would expect low end torque to be less with a 4 stroke compared to a 2 stroke although newer models are not a bad on the low end as years ago. If low end torque is an issue, say you like to water ski or the like, a different prop can help at the expense of some top end speed. That said, the bump up in HP should make up for the different torque curve.