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PREVIEW A SAMPLE PAGE

Sample page of a typical service manual


The service manual downloads for the above listed brands describes the service procedures for the complete snowmobile vehicle. Follow the Maintenance Schedule recommendations to ensure that the snowmobile is in peak operating condition. Performing the scheduled maintenance is very important. It compensates for the initial wear that occurs during the life of the snowmobile.
 
All chapters in the Polaris, Arctic Cat & Yamaha service manuals apply to the whole vehicle and illustrates procedures for removal & installation of components that are in detailed step-by-step fashion.
 
Most all service manual chapters start with an assembly or system illustration, diagrams, exploded parts view, quality pictures, service information and troubleshooting for the section. The subsequent pages give detailed procedures. If you don’t know the source of the trouble, go to the troubleshooting page for a list of causes and effects to determine the problem.

Below is a typical outline of contents you will find in a snowmobile service manual. Note: subjects will differ depending on brand, year and mode snowmobile.


CHAPTER 1

GENERAL INFORMATION

MACHINE IDENTIFICATION
FRAME SERIAL NUMBER
ENGINE SERIAL NUMBER
IMPORTANT INFORMATION
PREPARATION FOR REMOVAL AND DISASSEMBLYALL
REPLACEMENT PARTS
GASKETS, OIL SEALS, AND O-RINGS
LOCK WASHERS/PLATES AND COTTER PINS
BEARINGS AND OIL SEALS
CIRCLIPS
LOCTITE
SPECIAL TOOLS FOR TUNE UP
FOR ENGINE SERVICE
FOR POWER TRAIN SERVICE
FOR CARBURETION SERVICE
FOR ELECTRICAL SERVICE

CHAPTER 2.

PERIODIC INSPECTION AND ADJUSTMENT

INTRODUCTION
PERIODIC MAINTENANCE TABLE
ENGINE
SPARK PLUGS
FUEL LINE INSPECTION
COOLING SYSTEM
VALVE CLEARANCE
ADJUSTMENT
CARBURETOR SYNCHRONIZATION
ENGINE IDLE SPEED ADJUSTMENT
THROTTLE CABLE FREE PLAY ADJUSTMENT
THROTTLE OVERRIDE SYSTEM CHECK
COMPRESSION PRESSURE MEASUREMENT
ENGINE OIL LEVEL INSPECTION
ENGINE OIL REPLACEMENT
CRANKCASE BREATHER HOSE INSPECTION
CABURETOR JOINTS INSPECTION
EXHAUST SYSTEM INSPECTION
POWER TRAIN
SHEAVE OFFSET ADJUSTMENT
DRIVE V-BELT
ENGAGEMENT SPEED CHECK
PARKING BRAKE ADJUSTMENT
BRAKE LEVER ADJUSTMENT
BRAKE FLUID LEVEL
INSPECTION
BRAKE PAD INSPECTION
BRAKE HOSE INSPECTION
AIR BLEEDING (HYDRAULIC BRAKE SYSTEM)
DRIVE CHAIN
TRACK TENSION ADJUSTMENT
SLIDE RUNNER INSPECTION
MAXIMIZING DRIVE TRACK LIFE
CHASSIS
SKI/SKI RUNNER
STEERING SYSTEM
LUBRICATION
ELECTRICAL
HEADLIGHT BEAM
ADJUSTMENT
BATTERY INSPECTION
FUSE INSPECTION
SPEEDOMETER UNIT
INSPECTION
TUNING
CARBURETOR TUNING
CLUTCH
GEAR SELECTION
HIGH ALTITUDE TUNING
FRONT SUSPENSION
REAR SUSPENSION

CHAPTER 3.

CHASSIS

STEERING
SKI
FRONT SUSPENSION
HANDLING NOTES

CHAPTER 4.

POWER TRAIN

PRIMARY SHEAVE AND DRIVE V-BELT 
SECONDARY SHEAVE
DRIVE CHAIN HOUSING
WITHOUT REVERSE MODEL
WITH REVERSE MODEL
SECONDARYSHAFT
SECONDARYSHAFT, DRIVE CHAIN HOUSING 
BRAKE
BRAKE PAD REPLACEMENT
BRAKE CALIPER DISASSEMBLY
BRAKE CALIPER INSPECTION AND REPAIR
BRAKE CALIPER ASSEMBLY
BRAKE CALIPER INSTALLATION
BRAKE MASTER CYLINDER ASSEMBLY
SLIDE RAIL SUSPENSION
FRONT AXLE AND TRACK

CHAPTER 5.

ENGINE

SEAT AND FUEL TANK
EXHAUST PIPE AND MUFFLER
ENGINE ASSEMBLY
CAMSHAFTS
CYLINDER HEAD
VALVES AND VALVE SPRINGS
A.C. MAGNETO AND STARTER CLUTCH
OIL PAN AND OIL PUMP
CRANKCASE

CHAPTER 6.

COOLING SYSTEM

HEAT EXCHANGER
THERMOSTAT
WATER PUMP

CHAPTER 7.

CARBURETION OR EFI

CARBURETORS
FUEL LEBEL ADJUSTMENT
THROTTLE POSITION SENSOR
FUEL PUMP
 

CHAPTER 8.

ELECTRICAL

SWITCH INSPECTION
SWITCH INSPECTION
INSPECTING A SWITCH SHOWN IN THE MANUAL
IGNITION SYSTEM
CIRCUIT DIAGRAM
TROUBLESHOOTING
A.C. MAGNETO
SPARK PLUG
IGNITION SPARK GAP
IGNITION COIL
THROTTLE OVERRIDE SYSTEM (T.O.R.S.)
HANDLEBAR SWITCH (RIGHT)
CARBURETOR SWITCH
MAIN SWITCH
MAIN RELAY
ELECTRICAL STARTING SYSTEM
CIRCUIT DIAGRAM
TROUBLESHOOTING
MAIN SWITCH
STARTER MOTOR
CHARGING SYSTEM
CIRCUIT DIAGRAM
TROUBLESHOOTING
BATTERY
STATOR COIL
LIGHTING SYSTEM
CIRCUIT DIAGRAM
TROUBLESHOOTING
BULB(S)
HEADLIGHT BEAM SWITCH
HEADLIGHT RELAY


POLARIS SNOWMOBILE SERVICE MANUALS AVAILABLE:

1972-1987 Polaris snowmobile service manual
1985-1995 Polaris snowmobile service manual
1996-1998 Polaris Indy snowmobile service manual
2007-2008 Polaris IQ snowmobiles service manual
2007 Polaris snowmobile service manual repair 2-STROKES
2003 Polaris Pro-X service manual
2005 Polaris RMK Switchback service manual


MODELS COVERED IN THE 1996-1998 INDY SERVICE MANUAL:

1996 Models Covered -  Indy 440,  Indy 440 XCR, Indy 500, Indy 500 RMK, Indy 500 SKS, Indy 500 EFI, Indy 500 EFI RMK, Indy 500 EFI SKS, Indy 600 XCR, Indy 600 XCR SP, Indy Classic, Indy Classic Touring, Indy Lite, Indy Lite Deluxe, Indy Lite GT, Indy RXL, Indy Sport, Indy Sport Touring, Indy Storm, Indy Storm RMK, Indy Storm SKS, Indy Super Sport, Indy Trail, Indy Trail Touring, Indy TranSport, Indy Ultra RMK, Indy Ultra SKS, Indy Ultra SP, Indy WideTrack GT, Indy WideTrack LX, Indy XLT, Indy XLT RMK, Indy XLT SKS, Indy XLT SP, Indy XLT Touring.

1997 Models Covered - Indy 440, Indy 440 XC, Indy 440 XCR, Indy 500, Indy 500 EFI, Indy 500 RMK, Indy 500 SKS, Indy 600 XC, Indy 600 XCR, Indy 600 XCR SE, Indy 700 RMK, Indy 700 SKS, Indy Classic, Indy Classic Touring, Indy Lite, Indy Lite Deluxe, Indy Lite GT, Indy RXL, Indy Sport, Indy Sport Touring, Indy Storm, Indy Storm SE, Indy Storm RMK, Indy Super Sport, Indy Trail, Indy Trail RMK, Indy Trail Touring, Indy TranSport, Indy Ultra, Indy Ultra SP, Indy Ultra Touring, Indy WideTrack GT, Indy WideTrack LX, Indy XCF, Indy XLT, Indy XLT LTD, Indy XLT RMK, Indy XLT SKS, Indy XLT SP, Indy XLT Touring.

1998 Models Covered -  Indy 440, Indy 440 XCR, Indy 500, Indy 500 Classic, Indy 500 RMK, Indy 600 RMK, Indy 600 XC, Indy 600 XCR, Indy 700 RMK, Indy 700 XC, Indy 700 XCR, Indy Classic Touring, Indy Lite, Indy Lite Deluxe, Indy Lite Touring, Indy Sport, Indy Sport Touring, Indy Storm, Indy Super Sport, Indy Trail, Indy Trail RMK, Indy Trail Touring, Indy TranSport, Indy Ultra, Indy Ultra Touring, Indy WideTrack LX, Indy XCF, Indy XLT Classic, Indy XLT LTD, Indy XLT SP, Indy XLT Touring.

MODELS COVERED IN THE 2007-2008 IQ SERVICE MANUAL:

2007 Models Covered - 600 HO IQ, 600 HO Switchback, 600 HO RMK, 600 HO IQ CFI, 600 HO Switchback CFI, 600 HO IQ LX CFI, 600 HO IQ Touring CFI, 700 HO IQ Dragon, 700 HO RMK Dragon.

2008 Models Covered - IQ Shift, 600 RMK 144, 600 RMK Shift 155, 600 Dragon IQ, 600 Switchback, 600 Dragon Switchback, 600 IQ LX, 600 IQ Touring, 600 RMK 155, 700 IQ / 700 Dragon IQ, 700 Switchback, 700 Dragon Switchback, 700 RMK 155, 700 Dragon RMK 155, 700 Dragon RMK 163.

MODELS COVERED IN THE 2007 2-STROKE SERVICE MANUAL:
 
2003 Models Covered - 340 LX, 340 Touring, WideTrak LX, 500 XP SP, Super Sport, 550 LX, Trail RMK, Trail Touring Deluxe, 600 HO IQ, 600 HO IQ CleanFire, 600 HO IQ LX CleanFire, 600 HO SwitchBack, 600 HO SwitchBack CleanFire, 600 HO RMK 144/155 (F/O), 600 HO IQ Touring CleanFire, Dragon, Dragon RMK.

MODELS COVERED IN THE 2003 PRO-X SERVICE MANUAL:

2003 Polaris Pro-X 440, 600, 700 and 800

MODELS COVERED IN THE 2005 RMK SWITCHBACK SERVICE MANUAL:

2005 Models Covered - Trail RMK, 600 RMK, 700 RMK, 800 RMK, 900 RKM, 600 Switchback, 800 Switchback.


ARCTIC CAT SNOWMOBILE SERVICE MANUALS AVAILABLE

1990-1998 Arctic Cat snowmobile service manual
1999-2000 Arctic Cat snowmobile service manual
2001 Arctic Cat snowmobile service manual repair ALL MODELS
2002 Arctic Cat snowmobile service manual ALL MODELS
2003 Arctic Cat snowmobile service manual ALL MODELS
2004 Arctic Cat snowmobile service manual ALL MODELS
2005 Arctic Cat snowmobile service manual repair  2-STROKES
2006 Arctic Cat snowmobile service manual repair ALL MODELS
2007 Arctic Cat snowmobile service manual 2-STROKES
2008 Arctic Cat snowmobile service manual repair 2-STROKES
2009 Arctic Cat snowmobile service manual repair ALL MODELS

1990-1998 ARCTIC CAT SNOWMOBILES COVERED:

1990-1998 Prowler, Cougar, Panther 440, Panther 550, EXT 550, EXT 580, EXT 580 EFI, EXT 600, Z 440, ZL 440, ZR 440, ZR 580, ZR 580 EFI, ZR 600, ZR 600 EFI, ZRT 600, Powder Special, Powder Special EFI, Powder Extreme.

1999-2000 ARCTIC CAT SNOWMOBILES COVERED:

1999-2000 Bearcat Bear Cat Jag Kitty Cat Pantera Panther Powder Special Thundercat Thunder Cat Triple Touring Z120 Z370 Z440 ZL440 ZL500 ZL550 ZL580 ZL600 ZL700 ZR2K ZR440 ZR500 ZR600 ZR700 ZRT600 ZRT800 Z 120 Z 370 Z 440 ZL 440 ZL 500 ZL 550 ZL 580 ZL 600 ZL 700 ZR2K ZR 440 ZR 500 ZR 600 ZR 700 ZRT 600 ZRT 800 1000 2K I II EFI DLX LE MC WT S/N Wide Track Wide-Track Z ZL ZR ZRT artic sled two four stroke two-stroke four-stoke.

2001 ARCTIC CAT SNOWMOBILES COVERED:

2001 Bearcat Bear Cat Mountain Cat Pantera Panther Powder Special Thundercat Thunder Cat Triple Touring Z120 Z370 Z440 ZL500 ZL550 ZL600 ZL800 ZR500 ZR600 ZR800 ZRT600 ZRT800 Z 120 Z 370 Z 440 ZL 500 ZL 550 ZL 600 ZL 800 ZR 500 ZR 600 ZR 800 ZRT 600 ZRT 800 1000 2K I II ES ESR EFI DLX LE MC WT S/N Wide Track Wide-Track W/T Z ZL ZR ZRT artic sled 4-stroke 2-stroke.

2002 ARCTIC CAT SNOWMOBILES COVERED:

Bearcat, Bear Cat, Jag, Mountain Cat, Pantera, Panther, Thundercat, Thunder Cat, Z120, Z370, Z440, Z570, ZL440, ZL500, ZL550, ZL600, ZL800, ZR440, ZR500, ZR600, ZR800, Z 120, Z 370, Z 440, Z 570, ZL 440, ZL 500, ZL 550, ZL 600, ZL 800, ZR 440, ZR 500, ZR 600, ZR 800, 1000 CC EFI ESR, DLX, LE, MC, WT, SS, Wide Triple Touring, Track Wide-Track, ZRT artic sled 4 stroke, 2 stroke 2-stroke.

2003 ARCTIC CAT SNOWMOBILES COVERED:

2003 Firecat 500 Fire Cat 700 EFI Mountain Cat 570 Mountain Cat 600 EFI Mountain Cat 800 EFI Mountain Cat 900 Pantera 550 Pantera 600 EFI Pantera 800 EFI Panther 370 R Panther 570 ESR Z370 Z 370 ES Z440 Z 440 ESR Z570 Z 570 ESR ZL550 ZL 550 ESR ZL600 ZL 600 EFI ESR SS ZL800 ZL 800 EFI ESR SS ZR120 ZR 120 ZR900 ZR 900 Sno Pro ZR800 ZR 800 EFI Sno Pro 03 artic sled.

2004 ARCTIC CAT SNOWMOBILES COVERED:

2004 - 2 strokes and 4 strokes Bearcat 570, Firecat 500, Firecat 500 Sno Pro, Firecat 600, Firecat 600 Sno Pro, Firecat 600 EFI, Firecat 600 EFI EXT, Firecat 600 EFI Sno Pro, Firecat 700, Firecat 700 Sno Pro, Firecat 700 EFI EXT, Firecat 700 EFI Sno Pro, King Cat 900, Mountain Cat 570, Mountain Cat 600 EFI, Mountain Cat 800, Mountain Cat 900 EFI, Pantera 550, Pantera 600 EFI, Pantera 800 EFI, Panther 370, Panther 570, Sabercat 500, Sabercat 500 LX, Sabercat 600, Sabercat 600 LX, Sabercat 600 EFI EXT, Sabercat 600 EFI LX, Sabercat 700 EFI, Sabercat 700 EFI EXT, Sabercat 700 EFI LX, Z370, Z370 LX, Z440 LX, Z570, Z570 LX, ZR900, ZR900 Sno Pro.

2005 ARCTIC CAT SNOWMOBILES COVERED:

2005 Bearcat, Bear Cat, Firecat, Fire Cat, King Cat, Pantera, Panther, Sabercat, Saber Cat, 370, 440, 500, 550, 570, 600, 700, 900, AC, EFI, EXT, LE, LX, M, R, Z, ZR, M5, M6, M7, Z370, Z440, Z570, ZR900, Z 370, Z 440, Z 570, ZR 900, artic sled.

2006 ARCTIC CAT SNOWMOBILES COVERED:

2006 Bearcat 570 Firecat 500 Sno Pro Firecat 600 EFI Sno Pro Firecat 700 EFI Sno Pro Panther 370 Panther 570 Sabercat 500 EFI Sabercat 700 EFI King Cat 900 EFI LX EXT Z370 Z 370 Z440 Z 440 Z570 Z 570 M5 EFI M6 EFI M7 EFI Crossfire 600 EFI Cross Fire 600 Sno Pro Crossfire 700 EFI Cross Fire 700 ZR900 ZR 900 EFI Sno Pro.

2007 ARCTIC CAT SNOWMOBILES COVERED:

2007 Bearcat 570 Crossfire 500 Crossfire 600 Crossfire 800 Sno Pro Crossfire 1000 Sno Pro F5 LXR F6 Sno Pro F6 LXR F8 Sno Pro F8 LXR F1000 Sno Pro F1000 LXR M6 M8 Sno Pro M1000 Sno Pro Panther 370 Panther 570 Z370 Z 370 LX Z570 Z 570 LX touring long track sno pro modified artic sled 2 stroke.

2008 ARCTIC CAT SNOWMOBILES COVERED:

2008 Bearcat 570 Crossfire 500 Crossfire 600 Crossfire 800 Sno Pro Crossfire 1000 Sno Pro T500 F570 F 570 T570 T 570 F5 LXR F6 Sno Pro F6 LXR F8 Sno Pro F8 LXR F1000 Sno Pro F1000 LXR M6 M8 Sno Pro M1000 Sno Pro Panther 370 snopro long track EFI artic sled 2 stroke.

2009 ARCTIC CAT SNOWMOBILES COVERED:

2009 Bearcat Z1 XT Bearcat 570 XT Crossfire 1000 Sno Pro LE Crossfire R 1000 LE Crossfire 8 Sno Pro LE Crossfire R 8 LE Crossfire 6 Crossfire 5 F1000 Sno Pro F8 LE LXR Sno Pro F6 Sno Pro F5 LXR F570 M1000 162 153 Sno Pro 162 LE M8 162 Sno Pro 153 M8 153 HCR M8 153 Sno Pro M8 Sno Pro 153 LE M6 153 Sno Pro 120 T Z1 T Z1 LXR T Z1 Turbo LE T Z1 Turbo Touring LXR T500 T570 Z1 1 LXR Z1 Turbo LE Z1 Turbo LXR Z1 Turbo Sno Pro EFI skags artic sled.


YAMAHA SNOWMOBILE SERVICE MANUALS AVAILABLE:

1982-2001 Yamaha Bravo 250 (BR-250) Snowmobile service manual
1984-1987 Yamaha VMAX 540 service manual
1984-1989 Yamaha Phazer service manual
1987-1990 Yamaha Exciter 570 Service Manual
1988-1989 Yamaha Enticer LTR Snowmobile service manual
1990-1998 Yamaha Phazer / Phazer II service manual
1991-1997 Yamaha Venture 485 service manual VT480
1994-2006 Yamaha VMAX Venture Venom service manual
1994-1997 Yamaha Vmax-4 750 800 Service Manual
1997-2002 Yamaha 600 700 Snowmobile Service Manual
1999-2001 Yamaha Phazer 500 / Venture 500 Service Manual
2003-2006 Yamaha RX-1 Snowmobile service manual RX1
2006-2008 Yamaha Apex / Attak service manual
2007-2008 Yamaha Phazer / Venture Lite service manual
2008 Yamaha Nytro 1000 Snowmobile service manual FX10

1984-1987 YAMAHA VMAX-450 SNOWMOBILE MODELS COVERED:

1984-1987 V-max vmx540 vmx540h vmx540j vmx540k vmx540l

1984-1989 YAMAHA PHAZER SNOWMOBILE MODELS COVERED:

1984-1989 Phazer 2 Phaser Fazer Faser 480 485 PZ480.

1987-1990 YAMAHA EXCITER 570 SNOWMOBILE MODELS COVERED:

1987-1990 exiter deluxe ex570 ex570l ex570m ex570em ex570n ex570en ex570p ex570hp ex570ep ex570ehp 570, EX, I, M, N, P, RP, EHP.

1988-1989 YAMAHA ENTICER SNOWMOBILE MODELS COVERED:

1988-1989 Enticer long track reverse deluxe et400trn (ET-400-TRN, 400TRN) et340trm (ET-340TRM) et400 (ET-400) et340 (ET-340).

1990-1998 YAMAHA PHAZER - PHAZER II (2) SNOWMOBILE MODELS COVERED:

1990-1998 Phazer 2 Phaser Fazer Faser 480 485 (PZ, P, EP, R, ER, STR, T, ET, STT, W, EW, STW) pz480p pz480ep pz480r pz480er pz480str pz480t pz480et pz480stt pz480w pz480ew pz480stw.

1991-1997 YAMAHA VENTURE 485 SNOWMOBILE MODELS COVERED:

1991-1997 Yamaha Venture 485 XL, GT and TF versions vt480 vt480gt vt480tf.

1994-2006 YAMAHA VMAX VENTURE VENOM SNOWMOBILE MODELS COVERED:

1994-1996: VMAX 500/600, 1997-1999: Mountain Max 600/700, Venture 500/600, VMAX 500/600/700, 2000-2003: Venture 600, VMAX 600, 2004-2006: SX Venom 600, Venture 600 v-max v max DX ER LE ST SX XL XT XTC.

1994-1997 YAMAHA V-MAX-4 750-800 SNOWMOBILE MODELS COVERED:

1994-1997 Yamaha VMAX-4 and Mountain Max four cylinder snowmobiles, 1994 VMAX-4 750, 1994 VMAX-4 750 ST (Long Track), 1995-1997 VMAX-4 800, 1995-1996 VMAX-4 800 ST (Long Track), 1997 Mountain Max 800, v-max vmax vx750 vx750st vx800 vx800st mm800.

1997-2002 YAMAHA 600-700 SNOWMOBILE MODELS COVERED:

1997-2002 Mountain Max 600 (MM600), Mountain Max 700 (MM700), SX600R (SX600), SX700R (SX700), Venture 600 (VT600), Venture 700 (VT700), Vmax 600 ER (VX600ER), Vmax 600 SX (VX600SX), Vmax 700 SX (VX700SX), Vmax 700 SXS (VX700SXS), V-max 700 XT (VX700-XT), V-max 700 XTC (VX700XTC), V-max 700 XTCD (VX700XTD), V-max 700 XTCP (VX-700-XTP).

1999-2001 YAMAHA PHAZER 500-VENTURE 500 SNOWMOBILES COVERED:

1999-2001 Yamaha Phazer 500, Phazer 500 Mountain Lite, Phazer 500 Deluxe and Venture 500 two-stroke snowmobiles, mountain light dlx electric start pz500 pz500dx vt500xl.

2003-2006 YAMAHA RX-1 SNOWMOBILE MODELS COVERED:

2003, 2004, 2005, 2006 RX1, RX10, RX10GTL (RX-10-GTL), RX10ML, RX10RL, RX10RTL, RX10RTRL, RXW10L, TL, GTL, ML, RL, RTL, RTRL, RXW-10-L, RX1, RX10H, RH10SH, RX10MH, RX10MSH, RX10RH, RX10RSH, H, SH, MH, MSH, RH, RSH, S, M, MS, R, RS, RXW10J (RXW-10-J), RXW10SJ (RXW-10-SJ), S, RX10, RX10K, R, RK, RS, RSK, RXW10K, S, SK, RX10MK, M, MK, MS, MSK, RX10RTL (RX-10-RTL), RL, RTRL, GTL, ML, RXW10L, R, RTR, GTL, M.

2006-2008 YAMAHA APEX-ATTAK SNOWMOBILE MODELS COVERED:

2006, 2007 & 2008  ER GT SE mountain ltx mtx rtx rxt attack rx10 rx10s rx10r rx10rs rx10m rx10ms rx10rl rx10gtl rx10ml rx10rtl rx10rtrl rxw10l rx10rw rx10gtw rx10mw rx10msw rx10rtrw rxw10w rxw10gtw rx10gtax rx10lgtx rx10ltx rx10ltgtax rx10mtx rx10mtax rx10rtrx.

2007-2008 YAMAHA PHAZER-VENTURE LITE SNOWMOBILE MODELS COVERED:

2007-2008 Yamaha Phazer and Venture Lite 500cc 4-stroke snowmobiles, venture light PZ50 (PZ-50) PZ50FX PZ50RT PZ50GT PZ50MW PZ50MT mountain lite PZ50VT PZ50MP

2008 YAMAHA NYTRO 1000 SNOWMOBILE MODELS COVERED:

2008 Yamaha FX Nytro FX10 (FX10X, FX-10-X), 2008 FX10RTX (FX10-RTX), 2008 FX10RTRX (FX10-RTRX), 2008 FX10RTRAX (FX10-RTRAX), 2008 FX10MTX (FX-10-MTX), 2008 FX10MTRX (FX10-MTRX) and 2008 FX10MTRAX (FX-10-MTRAX) snowmobile.
 


Related Snowmobile Searches:

CARBURETOR TUNING

Main jet selection chart

Spark plug color - Diagnosis - Remedy

Light tan or gray Carburetors are tuned properly.
Dry black or fluffy deposits
Mixture is too rich. Replace the main jet with the next smaller size.
White or light gray Mixture is too lean. Replace main jet with a larger size.
White or gray insulator with small black or grayish brown spots and electrodes having a bluish-burnt appearance
Mixture is too lean.
The piston is damaged or seized.
Replace the piston and spark plug.
Tune the carburetors again. Begin with lowspeed tuning.
Melted electrodes and possibly a blistered insulator
Metallic deposits on insulator
Mixture is too lean.
The spark plug melted.
Check the piston for holes or seizure.
Check the cooling system, gasoline octane rating and ignition timing. After replacing the spark plug with a colder type, tune the carburetors again. Begin with low-speed tuning.

Troubleshooting

Trouble Diagnosis Adjustment

Hard starting Insufficient fuel Add gasoline.
Excessive use of the starter or choke
Return the starter lever to its seated position so that the starter valve is fully closed.
Fuel passage is clogged or frozen

Check and, if necessary, clean the fuel tank air vent, the fuel filter and all of the fuel passages.
Check and, if necessary, clean the carburetor air vents, fuel passages and the float valve.
Clean the float chamber of any ice or water.
Overflow Adjust the fuel level.

Poor idling:

Poor performance
Improper idling speed adjustment
Adjust the engine idle speed.
Refer to “Low speed tuning”. at low speeds
Damaged pilot screw Replace the pilot screw.
Poor acceleration
Slow response to res onse throttle.
Clogged bypass hole Clean the bypass hole.
Engine tends to stall.
Clogged or loose pilot jet
Remove the pilot jet, clean it with compressed air and then install it.
Make sure that the pilot jet is fully tightened.
Air leaking into the carburetor joint.
Retighten the clamp screws on the carburetor joints.
Defective starter valve seat Clean or replace the starter valve seat.
Overflow Adjust the fuel level.
Poor performance at mid-range speeds:
Momentary slow response to the
Clogged or loose pilot jet.
Remove the pilot jet, clean it with compressed air, and then install it.
Make sure that the pilot jet is fully tightened.

Throttle

Poor acceleration normal speeds:
Lean mixture Overhaul the carburetors.
Poor performance at Clogged air vent Remove the air vent hose and clean it.
Excessive fuel consumption
Poor acceleration
Clogged or loose main jet.
Make sure that the main jet is fully tightened.
Overflow Check and, if necessary, clean the float and float valve.
Poor performance at Starter valve is left open Return the starter lever to its seated position

High speeds:

Power loss
Poor acceleration
Clogged air vent Remove and clean the air vent.
Clogged or loose main air jet
Remove the main jet, clean it with compressed air, and then install it.
Make sure that the main jet is fully tightened.
Clogged fuel line Clean or replace the fuel line.
Dirty fuel tank Clean the fuel tank.
Air leaks into the fuel line Tighten or replace the fuel line joint.
Low fuel pump performance Repair or replace the fuel pump.
Clogged fuel filter Replace the fuel filter.
Clogged intake Remove any obstructions (e.g., ice).
Abnormal combustion: Lean mixture Clean and adjust the carburetors.
Backfiring Dirty carburetors Clean the carburetors.
Dirty or clogged fuel line Clean or replace the fuel line.
Overflow: Clogged air vent Clean the air vent.
 
Poor idling
Poor performance at low, mid-range, high speeds.
Clogged float valve
Disassemble and clean the float valve.
Do not scratch the valve seat.
Excessive fuel consumption
Hard starting
Scratched or unevenly worn float valve or valve seat
Clean or replace the float valve and valve seat.
The valve seat and body must be replaced as a set
Power loss Broken float Replace the float.
Poor acceleration Incorrect float level Check and, if necessary, replace the following parts:
Float tang
Float (entire assembly)
Arm pin


Service Manual, Shop Manual, Workshop, Repair Manual, Owner's Manual, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, User's Manual, Riders Manual, Repair Guide, Handbook, Book, Instructions Manual,