how do i turn the fuel up on a yanmar ym 146

[1971bmw2002]

To get more grunt out of the machine is to swap the DIFF gears and up the tire sizes.

Basically, a YM146 is a GT Garden Tractor. It's not a racer. Although there is a YM3000R racer out there.

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The YM3000R, you'll need a racing helmet like robin has here,

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In the photo of the 146 attached it has lines coming out of the front what is that for?

 

[bmaverick]

In the photo of the 146 attached it has lines coming out of the front what is that for?

To mount front weights.

 

[1971bmw2002]

More grunt? Replace it with something larger.

i dont have the acres for larger tractors

 

[careyo63]

Here's your options New Pump and largest is for a YM2210 #IP-200
Timing is the shims #IPG-1450
Injector Nozzle #IN-2100 Ym135- YM4500
No Adj on the pump itself those are for the Fuel line Bleeding the air out.
I would think without bigger pistons/Cyl. sleeves you might try leaving the bleed screws wide _ss open and my guess it will smoke like Shi!!... JS.