1999–2001 Yamaha Phazer 500 / Deluxe / Venture XL / Mountain Lite Snowmobile Service Manual Set

This Yamaha service manual set covers the 1999–2001 Phazer 500, Phazer 500 Deluxe, Venture XL, and Phazer 500 Mountain Lite snowmobiles. It combines the PZ500/VT500XL base manual with separate PZ500DX and PZ500ML supplements.

Supplied as one 358-page PDF, including both supplements and four seller information pages.

• Engine repair: Engine removal, cylinder head and piston inspection, crankcase and crankshaft service, cooling fan repair, and recoil starter disassembly.

• Fuel and lubrication: Mikuni B38-32 carburetor overhaul and synchronization, diaphragm fuel pump testing, and Yamaha Autolube oil pump adjustment and bleeding.

• Clutches and chaincase: Primary and secondary sheave disassembly, bushing inspection, clearance adjustments, and drive chain housing service for reverse and non-reverse models.

• Suspension and track: Slide rail suspension teardown, front axle and track removal, track tension and alignment, and front and rear suspension adjustments.

• Brakes and steering: Brake caliper and master cylinder repair, hydraulic bleeding, parking brake adjustment, steering inspection, and ski alignment.

• Electrical troubleshooting: Starting, charging, CDI ignition, lighting, signal, and grip warmer systems, with circuit diagrams, component tests, and troubleshooting flow charts.

Suited to mechanics experienced in snowmobile repair who have the measuring equipment and specialized clutch tools required for these procedures.

Model Differences and Supplement Coverage

The specification tables identify PZ500 as 8DJ, VT500XL as 8DX, PZ500DX as 8EM, and PZ500ML as 8EG. Machine identification pages locate the frame and engine serial numbers. The supplements address model-specific changes and are used alongside the base manual.

The Deluxe and Venture XL specifications include electric starting and reverse. Mountain Lite specifications list recoil starting and no reverse; its wiring diagram also identifies optional electric-start components. Separate clutch and gearing data for U.S./Canadian and European Venture XL configurations help match the setup before selecting parts.

Engine Repair and Carburetor Tuning

Internal engine checks cover cylinder taper and out-of-round, piston and ring wear, reed valves, crankshaft runout, and connecting-rod clearances. The base manual lists dispersion-coated cylinders, while the supplements specify cast-iron sleeves.

Carburetor troubleshooting links hard starting, poor idle, hesitation, and power loss to fuel-system checks. Synchronization procedures, float-height adjustment, and high altitude settings charts cover setup of the paired Mikuni carburetors. The manual warns that operating without the intake silencer can produce a lean mixture and severe engine damage.

Oil pump coverage includes cable adjustment and air bleeding. Fuel pump inspection uses a hand vacuum pump to check delivery, with cable routing diagrams showing the associated fuel, oil, and vacuum hoses.

Clutch, Chaincase, and Suspension Service

Gear ratio charts relate sprocket combinations to chain lengths. Drive V-belt specifications cover dimensions and wear limits. Clutch tuning tables distinguish springs, weights, rollers, and secondary spring settings by model and operating elevation. The PZ500DX supplement identifies primary sheave pullers P/N YS-01881-1 and YS-38517.

Clutch repair notes identify the spider's left-hand thread and warn that improperly secured tools or components can lead to cracked sheaves or a damaged spider.

Jackshaft service includes bearing inspection and installation with the chain housing. The suspension sections distinguish PZ500 and VT500XL assemblies, with checks for shock absorbers, bushings, slide runners, and wheel bearings. Front suspension coverage includes ski-spindle camber; rear suspension adjustments cover stopper bands, spring preload, and the full-rate adjuster.

Follow the manual's precautions for spring-loaded clutches, raised tracks, and electrical testing.

Electrical Fault Tracing and Service Data

Electrical Starting System, Charging System, Ignition System, and Grip Warmer System circuit diagrams accompany the fault charts. Full-machine wiring diagrams include connector views and wire color codes.

No-spark diagnosis includes the throttle override system (T.O.R.S.). Venture XL coverage also addresses passenger grip warmers and the reverse buzzer. Battery inspection and charging information covers the YB16AL-A2 unit used on electric-start models.

Periodic maintenance tables, general specifications, fluid capacities, wear limits, and electrical test values support the repair procedures. Tightening torque tables cover the intake manifold, crankcase fasteners, and other assemblies.

PDF Navigation and Text Search

The total comprises 205 pages of base manual, 82 pages of PZ500DX supplement, 67 pages of PZ500ML supplement, and four seller information pages; contents pages, wiring diagrams, and blank section pages are included in these counts. Embedded bookmarks navigate the manual and supplements, but technical text search is available only in the PZ500DX supplement. Small wiring labels require zooming, and some diagrams need rotation for normal reading.