Snowmobile Polaris High Performance (2001 year). Manual - part 32
CARBURETION
3.3
Mikuni TM-38/TM-40 Jet Part Numbers
DESCRIPTION
PART NUMBER
DESCRIPTION
PART NUMBER
Jet Needles
Pilot Air Jets Cont.
Jet Needle J8-9FH04-57
3130794
Pilot Air Jet
1.3 3130781
Jet Needle J8-9EH01-57
3130795
Pilot Air Jet
1.4 3130782
Jet Needle J8-9DH01-54
3130796
Pilot Air Jet
1.5 3130783
Jet Needle J8-9CJB01-50
3130797
Pilot Air Jet
1.6 3130784
Starter Jets
Pilot Air Jet
1.7 3130785
Starter Jet
130
3130805
Pilot Air Jet
1.8 3130786
Starter Jet
135
3130767
Pilot Air Jet
1.9 3130787
Starter Jet
140
3130768
Pilot Air Jet
2.0 3130788
Starter Jet
145
3130769
Piston Valves (Slides)
Starter Jet
150
3130770
Piston Valve
1.5 3130940
Starter Jet
155
3130771
Piston Valve
2.0 3130789
Starter Jet
160
3130772
Piston Valve
2.5 3130790
Pilot Air Jets
Piston Valve
3.0 3130791
Pilot Air Jet
0.5
3130773
Piston Valve
3.5 3130792
Pilot Air Jet
0.6
3130774
Piston Valve
4.0 3130793
Pilot Air Jet
0.7
3130775
Pilot Air Jet
0.8
3130776
Pilot Air Jet
0.9
3130777
Pilot Air Jet
1.0
3130778
Pilot Air Jet
1.1
3130779
Pilot Air Jet
1.2
3130780
The part numbers for main jets and pilot jets are the same as Mikuni VM round slide carburetors.
Throttle Valve
The throttle valve controls the rate of engine air intake
by moving up and down inside the main bore. At small
throttle openings, air flow control is performed chiefly
by the cutaway. By controlling air flow the negative
pressure over the needle valve is regulated, in turn
varying the fuel flow.
The throttle valves are numbered 1.0, 1.5, 2.0, etc.,
according to the size of the cutaway. The higher the
number, the leaner the gasoline/air mixture.
Cutaway