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2016-2018 Yamaha SR400 Maintenance Schedule and Service Intervals

2016-2018 Yamaha SR400

This is the maintenance schedule and associated service intervals for the 2016-2018 Yamaha SR400.

2016-2018 Yamaha SR400 Maintenance Schedule

Below is the maintenance schedule for the 2016-2018 Yamaha SR400.

The maintenance for the 2016-2018 Yamaha SR400 is broken into two sections: periodic maintenance for emission control systems, and general maintenance and lubrication.

Periodic Maintenance Emission Control System

• From 24000 mi (37000 km) or 36 months, repeat the maintenance intervals starting from 8000 mi (13000 km) or 12 months.
• Items marked with an asterisk require special tools, data and skills, have a Yamaha dealer perform the service

x 1000 mi0.648121620
x 1000 km1813192531
1*Fuel line•Check fuel hoses for cracks or damage.
•Replace if necessary.
2Spark plugs•Check condition.
•Adjust gap and clean.
•Replace Every 8000 mi (13000 km) or 12 months
3*Valve clearance•Check and adjust valve clearance when engine is cold
4*Crankcase breather system•Check breather hose for cracks or damage.
•Replace if necessary.
5*Fuel injection•Check engine idle speed
6*Exhaust system•Check for leakage
•Tighten if necessary
•Replace gasket(s) if necessary
7*Evaporative emission control system (for California only)•Check control system for damage.
•Replace if necessary.
8*Air induction system•Check the air cut-off valve, reed valve, and hose for damage
•Replace any damaged parts if necessary

General Maintenance and Lubrication Chart

x 1000 mi0.648121620
x 1000 km1813192531
1Air filter element•ReplaceEvery 12000 mi (19000 km)
2*Timing chain•Check timing chain tensioner
•Adjust if necessary
3*Clutch•Check operation
•Adjust or replace cable
4*Decompression system•Check operation
•Replace cable if necessary
5*Front brake•Check operation, fluid level, and for fluid leakage
•Replace brake pads if necessary
6*Rear brake•Check operation
•Adjust brake pedal free play and replace brake shoes if necessary
7*Brake hose•Check for cracks or damage
•Check for correct routing and clamping
*•ReplaceEvery 4 years
8*Brake fluid•ChangeEvery 2 years
9*Wheels •Check runout and for damage
•Tighten spokes if necessary
10*Tires•Check thread depth and for damage
•Replace if necessary
•Check air pressure
•Correct if necessary
11*Wheel bearings•Check bearings for smooth operation
•Replace if necessary
12*Swingarm pivot bushes•Check bush assemblies for looseness
•Lubricate with lithium-soap-based grease
13Drive chain•Check chain slack, alignment and condition
•Adjust and lubricate chain with a special O-ring chain lubricant thoroughly
Every 300 mi (500 km) and after washing motorcycle, riding in the rain or riding in wet areas
14*Steering bearings•Check bearing assembly for looseness
*•Moderately repack with lithium-soap-based grease Every 12000 mi (19000 km)
15*Chassis fasteners•Check all chassis fittings and fasteners
•Correct if necessary
16Brake lever pivot shaft•Apply silicone grease lightly
17Brake pedal pivot shaft•Apply lithium-soap-based grease lightly
18Clutch lever pivot shaft•Apply lithium-soap-based grease lightly
19Centerstand and sidestand pivot•Check operation
•Apply lithium-soap-based grease lightly
20*Sidestand switch•Check operation and replace if necessary
21*Front fork•Check operation and for oil leakage.
•Replace if necessary.
22*Shock absorber assemblies•Check operation and for oil leakage.
•Replace if necessary.
23Engine oil•Change (warm engine before draining)
24Engine oil filter element• Replace.
25*Front and rear brake switches•Check operation
26*Control and meter cables•Apply Yamaha chain lubricant or other suitable cable lubricant thorougly
27*Throttle grip •Check operation and free play
•Adjust throttle cable free play and adjust if necessary.
•Lubricate cable and grip housing and cable
28*Light, signals and switches•Check operation
•Adjust headlight beam

●Air filter
•This model’s air filter is equipped with a disposable oil-coated paper element, which must not be cleaned with compressed air to avoid damaging it
•The air filter element needs to be replaced more frequent when riding in unusually wet or dusty areas

● Hydraulic brake service
• After disassembling the brake master cylinders and calipers, always change the fluid. Regularly check the brake and clutch fluid levels and fill the reservoirs as required
• Every two years replace the internal components of the brake master cylinders and calipers, and change the brake fluid
• Replace the brake hoses every four years or if cracked or damaged.

About the 2016-2018 Yamaha SR400

A 399 cc, “thumper” engine drives this classic ride. The vertical arrangement of the air-cooled jug toes the nostalgic line and accentuates the look, rather than detracting from it. Though the engine strives to revive the past – even going so far as to run with a kick-only starter – the innards are all modern with fuel-injection controlled induction and electronic ignition so you get the old looks with modern performance and emission control.

The engine cranks out a modest 24 ponies at 6,400 rpm, and 21 pound-feet of torque at the 5,500 rpm peak on an independent dyno. Surprisingly, the torque curve actually comes on rather early, producing the majority of max torque (20 pound-feet) at a mere 2,500 rpm. This grunty bottom-end provides for some decisive hole shots and authoritative roll-on response for navigating traffic. Mileage is up there at 66 mpg, which really isn’t bad for basic transportation, and if you need better mileage than that, you may have to start looking at scooters instead of the “proper” motorcycle sector.

Manual for the 2016-2018 Yamaha SR400

2016-2018 Yamaha SR400 Maintenance schedule screenshot from manual

The above information was gleaned from the owner’s manual for the 2016-2018 Yamaha SR400.

You can download it from Yamaha’s website here.

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