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1999 Yamaha XT350 Maintenance Schedule and Service Intervals

Maintenance schedule and service intervals for the 1999 Yamaha XT350

This is the maintenance schedule and associated service intervals for the 1999 Yamaha XT350.

1999 Yamaha XT350 Maintenance Schedule

Below is the maintenance schedule for the 1999 Yamaha XT350

The maintenance for the 1999 Yamaha XT350 is broken into two sections: periodic maintenance for emission control systems, and general maintenance and lubrication.

Periodic Maintenance Emission Control System

No.ItemRoutine 1,000 km (600 mi) or 1 month**1

7000 km (4400 mi) or 7 months
**2

13000 km (8200mi) or 13 months
19000 km (12000 mi) or 19 months
25000 km (15800 mi) or 25 months
31000 km (19600 mi) or 31 months
1*Valve clearance•Check and adjust valve clearance when engine is cold
2Spark plug•Check condition
•Adjust gap and clean
•Replace at 13000 km (or 13 months) and thereafter every 12000 km (or 12 months)
ReplaceReplace
3*Crankcase ventiation system•Check ventilation hose for cracks or damage
•Replace if necessary
4*Fuel line•Check fuel hose for cracks or damage
•Replace if necessary
5*Exhaust system•Check for leakage
•Retighten if necessary
•Replace gasket(s) if necessary
6Spark arrester•Clean
7*Idle speed•Check and adjust engine idle speed
•Adjust cable freeplay
8*Decompression•Check and adjust decomp-cable free play after valve clearance maintenance
9*Evaporative emission control system**•Check control system for damage
•Replace if necessary

* It is recommended that these items be serviced by a Yamaha dealer

** For California

NOTE: For farther odometer reading beyond those listed, repeat the above maintenance at the period established; ** 1: Every 6000 km (3800 mi) and **2: Every 12000 km (7600 mi)

General Maintenance and Lubrication Chart

No.ItemRoutineType 1,000 km (600 mi) or 1 month**1

7000 km (4400 mi) or 7 months
**2

13000 km (8200mi) or 13 months
19000 km (12000 mi) or 19 months
25000 km (15800 mi) or 25 months
31000 km (19600 mi) or 31 months
1Engine oil •Warm-up engine before drainingSee page 8-1
2Oil filter/strainer•Replace filter element and clean oil strainer
•Replace oil strainer if damaged
3*Air filter•Wet type filter must be washed and dampened with oilYamaha foam-air-filter-oil or SAE 10W30 motor oil
4*Brake system•Adjust free play
•Check fluid leakage (front)
(see NOTE page 8-7)
•Correct if necessary
•Replace pads if necessary (front)
•Replace shoes if necessary (rear)
5*Clutch•Adjust free play
6Drive chain•Check chain condition
•Adjust and lubricate chain thoroughly
SAE 30-50W motor oil or chain lubricants suitable for “O-ring” chainsEvery 500 km (300 mi)
7*Control meter and cable•Apply chain lube thoroughlyYamaha chain and cable lube or SAE 10W30 motor oil
8*Rear arm pivot shaft and suspension link pivots•Apply until new grease showsLithium soap base grease
9Brake/clutch lever pivot shaft•Apply chain lube lightlyYamaha chain and cable lube or SAE 10W30 motor oil
10Brake pedal and shift pedal shaft•Lubricate.
•Apply chain lube lightly
Yamaha chain and cable lube or SAE 10W30 motor oil
11Sidestand pivot and kick crank boss•Check operation and lubricate
•Apply chain lube lightly
Yamaha chain and cable lube or SAE 10W30 motor oil
12*Front fork oil•Check operation and leakage
13*Steering bearings•Check bearing assembly for looseness
•Moderately repack every 24000 km (15200 mi)
Medium weight wheel bearing greaseRepack
14*Wheel bearings•Check bearing for smooth rotation
15Battery•Check specific gravity
•Check that the breather pipe is working properly.
•Correct if necessary
16*Sidestand switch•Check and clean or replace if necessary

* Since these items require special tools, data and technical skills, they should be serviced by a Yamaha dealer

Note: For farther odometer reading, repeat the above maintenance at the period established; ** 1: Every 6000 km (3800 mi) and **2: Every 12000 km (7600 mi) and **3:Every 24000 km (15,200 mi) intervals.

Brake fluid replacement
1. When disassembling the master cylinder or caliper cylinder, replace the brake fluid. Normally Check the brake fluid level and add fluid as required.
2. On the inner parts of the master cylinder and caliper cylinder, replace the oil seals every two years
3. Replace the brake hose every four years, or if cracked or damaged.

About the 1999 Yamaha XT350

The Yamaha XT350 was an Air-cooled DOHC, 4-stroke, 4-valve single-cylinder Enduro motorcycle produced by Yamaha between 1985 and 2000. It could reach a top speed of 90 mph (145 km/h). Max torque was 21.39 ft/lbs (29.0 Nm) @ 7000 RPM. Claimed horsepower was 26.42 HP (19.7 KW) @ 8000 RPM.

Manual for the 1999 Yamaha XT350

1999 Yamaha XT350 Maintenance schedule screenshot from manual

The above information was gleaned from the owner’s manual for the 1999 Yamaha XT350.

You can download it from Yamaha’s website here.