4.6
FUEL DELIVERY
MIKUNI TM 38
Carburetor Overview
The advantages of the TM flatslide system include improved
throttle response and a significant reduction in throttle effort
due to rack style carbs and the use of cable cam. The following
are the main components of TM carburetors and the functions
of each components.
Pilot Air Jet
(A): The pilot air jet controls the amount of air
entering the engine in the idle circuit. The pilot air jet size is
imprinted on it. Bigger pilot air jets allow more air to enter,
leaning the idle mixture. If engine loads up at idle, first try
turning fuel screw in. If not correct, try larger pilot air jet.
Starter Jet
(B): The starter jet's function is to meter fuel
entering the engine when choked. Larger numbered starter jets
pass more fuel, therefore more fuel will enter the system when
jetting to a larger size. Like the pilot air jet, the jet size is
imprinted.
Jet Needle
(C): The jet needle performs the same functions as
on Mikuni VM carburetors. However, the needles in the TM-38
carburetors are longer and are not interchangeable with VM
needles. To raise or lower the needle, remove the top cap (D)
and loosen the 2.5mm Allen screw holding the needle in place.
Reach inside with a long nose pliers and pull the needle out. The
C-clip can then be adjusted for the desired effect.
Needle Jet
(D): The needle jet is press fit into carbs and is not
replaceable.
Piston Valve or 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
Main Jet and Pilot Jet
(F): The main jets (hex) and pilot jets
(air bleed type) are identical in style and function as the Mikuni
VM carbs. There is a washer on a main jet that is staked and
should not come out. The part numbers for main jets and pilot
jets are the same as Mikuni VM round slide carburetors.
Fuel Screw
(G): The fuel screw controls the low speed air/fuel
mixture at idle. Turning the fuel screw out makes the mixture
richer and can be adjusted up to three turns out.
Содержание 340 LX 2007
Страница 4: ......
Страница 40: ...NOTES MODEL SPECIFICATIONS 1 36...
Страница 51: ...2 11 GENERAL 2 SPECIAL TOOLS Special Tools...
Страница 52: ...2 12 GENERAL...
Страница 53: ...2 13 GENERAL 2...
Страница 54: ...2 14 GENERAL...
Страница 80: ...NOTES MAINTENANCE 3 26...
Страница 91: ...4 11 FUEL DELIVERY 4 Throttle Opening Vs Fuel Flow VM only...
Страница 104: ...NOTES FUEL DELIVERY 4 24...
Страница 114: ...5 10 ENGINE 500 600 Touring WideTrak LX Touring WideTrak...
Страница 146: ...NOTES ENGINE 5 42...
Страница 170: ...NOTES CLUTCHING 6 24...
Страница 214: ...NOTES FRONT SUSPENSION STEERING 8 20...
Страница 259: ...10 11 CHASSIS HOOD 10...
Страница 260: ...NOTES CHASSIS HOOD 10 12...
Страница 272: ...11 12 BATTERY ELECTRICAL SYSTEMS ELECTRIC START GEN II EDGE System Schematic...
Страница 276: ...11 16 BATTERY ELECTRICAL SYSTEMS ELECTRIC START IQ CARBURETED CFI System Schematic 600 HO Carbureted...
Страница 277: ...11 17 BATTERY ELECTRICAL SYSTEMS 11 System Schematic 600 700 CFI...
Страница 286: ...11 26 BATTERY ELECTRICAL SYSTEMS Chassis Relay...
Страница 288: ...11 28 BATTERY ELECTRICAL SYSTEMS Vehicle Speed Sensor...
Страница 293: ...11 33 BATTERY ELECTRICAL SYSTEMS 11 CFI Power System CFI Ignition Injection Power...
Страница 294: ...11 34 BATTERY ELECTRICAL SYSTEMS CFI Crank Position System CFI Safety Stop System...
Страница 295: ...11 35 BATTERY ELECTRICAL SYSTEMS 11 CFI Full Load Fuel Injectors CFI Part Load Fuel Injectors...
Страница 296: ...11 36 BATTERY ELECTRICAL SYSTEMS CFI Chassis Power CFI Ignition Coils...
Страница 297: ...11 37 BATTERY ELECTRICAL SYSTEMS 11 CFI TBAP Sensor CFI TPS Engine Temp Sensors...
Страница 298: ...11 38 BATTERY ELECTRICAL SYSTEMS CFI Exhaust Solenoid CFI Knock Sensor...
Страница 299: ...11 39 BATTERY ELECTRICAL SYSTEMS 11 CFI Fuel Pump CFI Diagnostic Connections...
Страница 300: ...11 40 BATTERY ELECTRICAL SYSTEMS CFI MFD Circuits CFI MFD Power Circuits...
Страница 301: ...11 41 BATTERY ELECTRICAL SYSTEMS 11 CFI Fuel Level Circuit CFI Vehicle Speed Circuit...
Страница 302: ...11 42 BATTERY ELECTRICAL SYSTEMS CFI Mode Set Switch CFI PERC Switch...
Страница 318: ...12 1 Wiring Diagrams 2007 340 550 GEN II EDGE Models...
Страница 319: ...12 2 Wiring Diagrams 2007 Wide Trak...
Страница 320: ...12 3 Wiring Diagrams 2007 500 XCSP...
Страница 321: ...12 4 Wiring Diagrams 2007 600 HO Carbureted 1 of 2...
Страница 322: ...12 5 Wiring Diagrams 2007 600 HO Carbureted 2 of 2...
Страница 323: ...12 6 Wiring Diagrams 2007 600 HO Carbureted Hood Harness...
Страница 324: ...12 7 Wiring Diagrams 2007 600 700 CFI 1 of 2...
Страница 325: ...12 8 Wiring Diagrams 2007 600 700 CFI 2 of 2...
Страница 327: ...12 10 Wiring Diagrams...