25 2 Stroke 2006 Tohatsu

[ORES]

Hey,

We got a 25hp tohatsu 2 stroke 2006, just wondering if any one can tell me the ideal fuel/oil mixture to use?

I usualy use 50:1 with older models but others have said 100:1 or others 25:1????

does the quality of oil matter...semi sinthetic or full synthetic?

opinion would be appreciated, maybe Huey can answer this one.

thanks

[cut_loose]

50;1 is a little rich for a 2006 model outboard. Mate use 75;1 or 100;1

[pjbink]

I'm sure the manual will say use 50:1, which makes Tohatsu different from most other small outboard brands which specify 100:1. I don't think there is a mechanical reason for this difference, it's just that Tohatsu have gone for longevity rather than making a concession to the environment. These motors will definitely last longer run on 50:1. I rum my 30hp Suzuki on 50:1 even though they specify 100:1.

[a boat]

Hi, your engine is 50:1 and as mentioned use a good quality oil. All brands can run on 100:1 if you are doing recreational boating and some brands have recomended this over the years. Problem is for an engine that runs at 100:1 at WOT the oil is too lean and also if you put the engine away for an extended period there is not enough oil residue in the bores/crankcase and with condensation rust and corrosion can occur.

Long story short, just use 50:1 in all carby 2-Stroke engine and the best quality you can find so best running.

Cheers,

Huey.

[joel99]

Hi, your engine is 50:1 and as mentioned use a good quality oil. All brands can run on 100:1 if you are doing recreational boating and some brands have recomended this over the years. Problem is for an engine that runs at 100:1 at WOT the oil is too lean and also if you put the engine away for an extended period there is not enough oil residue in the bores/crankcase and with condensation rust and corrosion can occur.

Long story short, just use 50:1 in all carby 2-Stroke engine and the best quality you can find so best running.

Cheers,

Huey.

Does this hold true for very old models 1980s?

[a boat]

What, that you use 50:1-yes or that you can run at 100:1-yes too but I would not due to the reasons I listed. Run your engine at 50:1.

Cheers,

Huey.

PS I would not call 1980's very old, we have customers with 1960's Evinrude and Johnsons still running and in fact have a 9.5HP Evinrude here at the moment getting serviced that is a 1968 model and she runs great.

[ORES]

Thanks for the info guys and the link as well.

Huey, you always pull through with good advise and a 1968 evinrude still running fine is amazing, just goes to show that if you take care of your outboard it will probably out live its owner.

Huey, ive been told that converting it to a 30hp is an inexpensive procediure.

Can you Pm me with a quote for that and a quote on an impelor and gearoil change as well please.

Im a little short on cash at the moment but need to do this very soon, I dont want to destroy the motor as I havnt had it in the water yet and dont know its past service history.

thanks