Target Audience:
DIY mechanics, snowmobile enthusiasts, repair shops specializing in vintage snowmobiles
Purpose:
To provide comprehensive guidance for the maintenance, repair, and overhaul of Yamaha Enticer 340 and 400 snowmobiles.
Value Proposition:
Offers complete coverage, high detail, and user-friendly features (searchable, printable) at a competitive price, with added value of free replacement.
Manual Features:
Includes pictures, part diagrams, torque specifications, maintenance schedules, troubleshooting guides, and complete rebuild procedures.
Download Features:
Instant download, no restrictions on saving or printing, clickable chapters.
Engine Mechanical:
Complete teardown, rebuild, cylinder, piston, crankshaft, connecting rods, valves, camshaft, valve clearance, compression ratio, bore, stroke, displacement, flywheel, magneto, stator, ignition system, spark plug, charging system, starter, kickstart mechanism
Fuel System:
Carburetor (carb/carburettor) tuning, jetting (main jet, pilot jet, slow jet), mixture screw adjustment, fuel pump, fuel tank, fuel lines, fuel injection (EFI/PGM-FI for potential advanced models, though not explicitly stated for this generation, included as a general tag)
Drivetrain Transmission:
Drive shaft, primary reduction gear, clutch (primary and secondary), clutch adjustments, clutch maintenance, driven clutch, drive clutch, torque converter (if applicable), transmission operation, gears, lubrication
Chassis Suspension Steering:
Frame, forks (front suspension), suspension components, bogey wheels, swingarm, skis, ski carbides, steering system, handle bars, steering linkage, strut, wheel bearings
Braking System:
Brake components, brake pads, brake lines, hydraulic brakes, brake adjustment, brake fluid, rear brake system
Electrical Systems:
Wiring diagrams, ignition coil, regulator, rectifier, battery, lights (headlight, taillight), switches (ignition switch, kill switch, lighting switches), electrical troubleshooting, no spark diagnosis
Bodywork Plastics:
Panels, fenders, hull, seat, plastic components, bodywork repair, graphics
Exhaust Cooling:
Muffler, exhaust system, radiator (if applicable for liquid-cooled variants, though typically air-cooled), coolant, change coolant procedure, engine cooling system
Maintenance:
Scheduled maintenance, lubrication schedule, fluid changes (coolant, transmission oil, brake fluid), spark plug replacement, air filter cleaning/replacement, chain adjustment (if applicable), track tension adjustment, general upkeep
Troubleshooting:
Systematic problem diagnosis, error code lookup (if applicable), common issues (no spark, starting problems, engine performance issues), troubleshooting charts, diagnostic procedures
Repair Rebuild:
Complete engine overhaul, transmission rebuild, suspension repair, brake system service, electrical component replacement, bodywork repair, carburetor rebuild, clutch service
Installation:
Component installation, accessory installation (if covered in factory specs), parts replacement procedures
Adjustment:
Carburetor adjustment, ignition timing adjustment, brake adjustment, throttle cable adjustment, clutch adjustment, suspension setup
Depth:
Comprehensive (from basic maintenance to full engine and drivetrain rebuilds)
Detail Level:
Detailed instructions, step-by-step procedures, exploded views, part diagrams, wiring schematics
Special Features:
Torque specifications, technical data charts, viscosity recommendations, performance tuning guides (carburetor jetting)
Type:
Two-stroke, Fan-Cooled (typical for this era/model)
Cylinders:
2 (likely in-line twin for both 340 and 400 variants)
Bore Stroke 340:
Specific data not provided, but typically around 60-70mm bore and 50-60mm stroke for a 330-340cc engine.
Bore Stroke 400:
Specific data not provided, but typically around 65-75mm bore and 55-65mm stroke for a 390-400cc engine.
Displacement 340:
Approx. 333cc - 340cc
Displacement 400:
Approx. 397cc - 400cc
Horsepower 340:
Estimated 35-45 HP (typical for the era and displacement)
Horsepower 400:
Estimated 45-55 HP (typical for the era and displacement)
Carburetion:
Dual Mikuni carburetors (common for Yamaha snowmobiles of this era), specific model numbers (e.g., VM30/VM32) would be detailed in the manual.
Fuel Type:
Unleaded gasoline (recommended octane rating to be found in manual)
Oil Mixture:
Premix or Oil Injection (specific system to be detailed in manual)
Oil Change:
Intervals for transmission oil and 2-stroke oil (if injected) will be specified in the manual, typically annually or every 100-200 hours of operation.
Spark Plug Inspection:
Recommended inspection and replacement intervals (e.g., every season or every 1000 miles/hours) will be detailed.
Clutch Maintenance:
Belt inspection, sheave cleaning, roller/button inspection, and greasing intervals will be outlined.
Suspension Lubrication:
Grease points for suspension pivots, idler wheels, and drive sprockets will have specified intervals.
Engine Oil:
For premix: Specific 2-stroke snowmobile oil with recommended ratio (e.g., 50:1 or 40:1). For oil injection: Specific Yamaha-branded oil or equivalent meeting specifications.
Transmission Oil:
Yamalube Gear Oil, SAE 80W-90 Hypoid Gear Oil, or equivalent (manual will specify exact type and viscosity).
Coolant:
If liquid-cooled (unlikely for this model, but if present), a 50/50 mix of ethylene glycol antifreeze and distilled water. Manual will confirm coolant type.
Common Problems:
Carburetor gumming due to fuel sitting, ignition system failures (stator, coil), drive belt wear, track tension loss, shock absorber wear.
