Convert 2008 4st 4hp F4a to 6hp?

[djdyna123]

OMG, go buy a 10hp and be done with it....

I have a 2005 Tohatsu 9.8 4st already. This is my backup engine

[boscoe99]

There should be a label on the clamp bracket that gives the model identity and the engine ID.

What parts catalog are you using?

[boscoe99]

What does your owners manual say about the model?

[djdyna123]

There should be a label on the clamp bracket that gives the model identity and the engine ID.

What parts catalog are you using?

Hi. Come back from being away. Here is the info

[djdyna123]

Anyone able to advise? Thanks

[99yam40]

I thought Boscoe would have dropped back by to reply since he asked for that motor info

[boscoe99]

Boscoe has been trying to correlate that model F4 to some model of F6. I cannot get there from here. Trail went cold on me.

[99yam40]

so, it sounds like the OP is going to have to do some searching over where he is located
I would tend to think he will not find many people that have done this to those small motors