1988 Yamaha Enticer 340 Manual

The 1988 Yamaha Enticer 340 is a reliable snowmobile featuring a 338cc two-stroke engine, electric start, reverse gear, slide rail suspension, and Mikuni carburetor. Designed for recreational trail riding with excellent cold-weather performance. Below are key sections for safety, specifications, operation, maintenance, troubleshooting, and storage.

Features at a Glance

Key components: 338cc two-stroke engine, Electric start system, Reverse gear, Slide rail suspension, Mikuni VM34 carburetor.

Installation & Setup

Unpack and inspect contents. Prepare for initial operation.

1. Pre-delivery inspection: Check all fluid levels and connections.
2. Battery installation: Connect positive then negative terminals.
3. Fuel mixture: Use premium unleaded gasoline with Yamalube 2-stroke oil.
4. Track adjustment: Set track tension to manufacturer specifications.

WARNING! Snowmobile is heavy; use proper lifting techniques. Ensure all fasteners are secure.

First-Time Operation

Complete pre-ride inspection before starting.

1. Pre-start check: Verify fuel, oil, brake function, and throttle operation.
2. Starting procedure: Turn key to ON, pull choke, press start button.
3. Warm-up: Allow engine to reach operating temperature (2-3 minutes).
4. Test ride: Check brakes, steering, and throttle response in safe area.

CAUTION! Always wear proper safety gear. Never operate in enclosed spaces.

Specifications

• Engine: 338cc two-stroke, fan-cooled
• Bore x Stroke: 72mm x 66mm
• Compression Ratio: 6.8:1
• Fuel System: Mikuni VM34 carburetor
• Ignition: CDI electronic ignition
• Transmission: Yamaha Variable Speed (YVS) with reverse
• Track: 15" x 121" rubber
• Suspension: Slide rail rear, telescopic front
• Brakes: Mechanical disc
• Dry Weight: 425 lbs

Controls and Operation

Main controls: Handlebar controls, dash indicators, throttle/brake levers.

Handlebar Controls: Throttle lever, brake lever, reverse lever, light switch.

Dash Indicators: Fuel gauge, temperature warning light, oil level warning. Operation: Start with key, engage reverse by pulling lever up, use choke for cold starts. Speed control via throttle lever, braking with left-hand lever.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

1. Daily: Check fuel and oil levels, inspect track and skis.
2. Every 500 miles: Change spark plugs, check drive belt.
3. Every 1000 miles: Clean carburetor, inspect suspension.
4. Seasonal: Change gear oil, inspect bearings, check brake pads.

Tip: Keep maintenance log for service intervals.

Engine Service

338cc two-stroke engine maintenance procedures.

1. Spark plugs: NGK B9ES, gap 0.024-0.028 inches.
2. Compression test: Should read 120-140 PSI.
3. Carburetor adjustment: Pilot screw 1.5 turns out, main jet #220.
4. Oil injection: Check lines for air bubbles, adjust pump cable.
5. Cooling system: Inspect fan blades, clean cooling fins.

WARNING! Engine parts become hot during operation. Allow to cool before servicing.

Electrical System

12V DC system with battery, starter, and lighting.

Storage & Winterization

Proper storage prevents damage during off-season.

1. Fuel system: Add fuel stabilizer, run engine for 5 minutes.
2. Battery: Remove and store on trickle charger.
3. Track: Lift off ground to prevent flat spots.
4. Cover: Use breathable cover to protect from elements.

CAUTION! Store in dry, well-ventilated area away from open flames.

Safety Information

Always follow safety guidelines when operating snowmobile.

• Wear helmet, eye protection, and proper clothing
• Never ride alone; inform others of your route
• Check weather and trail conditions before riding
• Avoid frozen water unless thickness is verified
• Carry emergency kit and communication device

Troubleshooting

Service: Contact authorized Yamaha dealer for major repairs.

Parts: Use genuine Yamaha parts for optimal performance.