My bike is all stock, I bought new top end and cylinder. I was going to install and just drive it but noticed the previous owner already removed the oil tank and lines but left the pump. I will look into it thanks for info. Cheersyes not sure on size though.List your mods temp and elevation,also ratio yo plan to mix at and some 1 will give you a ballpark jetting range
I'm not much of a mechanic I just know how to rebuild top ends. When it comes to carbs i'm lost, do i have to buy any extras to jet my carbIf you add oil to fuel as in the case of pre mix, and at the common ratio of 32:1 the main jet should be increased one size over, to compensate for the diminished fuel in the mix.
It should be confirmed by a plug chop.
Make sure that the pump has had its drive gear taken off and the injection nipple on the carb, capped off and leak free.
Lost me at plug chop fella, could you explain that a bit? ..before any changes are made, it would pay to plug chop the stock main jet, i'd be willing to bet yamaha has these jetted too rich from the start, as they have to run at vastly varying elevations and temps here, and one jet (230) covers them all ? ..... hogwash !
anywhere but sea level and the stock 230 main is more than likely already 1-2 sizes too rich and is probably safe to run with an aftermarket filter (i've done it for years @ 1800' elevation) OR premixed fuel/oil, but maybe not both ?
plug chops must be done and will tell the tale.
L
Lost me at plug chop fella, could you explain that a bit? ..
before any changes are made, it would pay to plug chop the stock main jet, i'd be willing to bet yamaha has these jetted too rich from the start, as they have to run at vastly varying elevations and temps here, and one jet (230) covers them all ? ..... hogwash !
anywhere but sea level and the stock 230 main is more than likely already 1-2 sizes too rich and is probably safe to run with an aftermarket filter (i've done it for years @ 1800' elevation) OR premixed fuel/oil, but maybe not both ?
plug chops must be done and will tell the tale.