Re: air fuel mixture
i have a 2007model 25hp mercury sea pro 2stroke made by tohatsu
i have removed the inlet restrictor and advanced the timing to 25deg which is the same as the 30hp model
You now run the risk of detonating a piston...
seapro25 said:
does any one know how to adjust the air fuel mixture correctly?
Change the carb to a 30 hp carb... You'll also need to pull the powerhead and change the exhaust tube.... or all that changing of timing and carb will be for nothing, as the exhaust back pressure will be too high (engine can't breath).
And after all that, the next poor bastard (after you sell that abortion) who tries to work on it will be stuffed up royally as now all the parts he thinks should be on it are different....
If you want a 30hp, sell the 25 and buy a 30hp....
Chris..........