# Thread: another carb question???????

1. ## another carb question???????

I see everyone says to set the low speed at 1/2 turn out but what does it mean when I see someone say the high speed they set at m1,c1/2 and p3/4 what does all that mean.

2. Originally Posted by sullified
I see everyone saying to set the low speed at 1/2 turn out I have stock jets in my carbs 72.5 for lows and 77.5 for highs what exactly does it mean when I see people post that they set thier highs at m1,c1/2 and p3/4 can anyone break this down for me so I can understand bare with me I'm new at this?
The 72.5 lows and 77.5 highs are the jet size numbers.
The m1 = 1 turn out from seated on the adjuster screws. C1/2 = 1/2 turn counter clockwise from seated and so on.

3. m is mag (front), c is center, p is PTO (rear)

4. Mag is front and pto is the rear.

5. Originally Posted by ZOMGVTEK
m is mag (rear), c is center, p is PTO (front of ski)
MAG is short for Magneto, which is another name for the stator assembly inside the flywheel, on the front end of the engine.

PTO is Power Take Off, which is the rear of the engine, where the power feeds the drive shaft.

CEN is the center.

6. Originally Posted by sullified
...what does it mean when I see someone say the high speed they set at m1,c1/2 and p3/4..
M = MAG (front) cylinder/carb
C = Center cylinder/carb
P = PTO (rear) cylinder/carb

The number or fraction is the turns out from fully closed (adjusting screw gently closed but not torqued down, then turned back out the specified amount).

7. Originally Posted by K447
MAG is short for Magneto, which is another name for the stator assembly inside the flywheel, on the front end of the engine.

PTO is Power Take Off, which is the rear of the engine, where the power feeds the drive shaft.

CEN is the center.

LOL!

I dont even know how i typed it backwards, i know its the other way around.