Tensioning Chain For Yamaha Sr 250

Front axle nut torque 10 7 m-kg (77 5 fMb)

Tire Pressure

See page 5-3 "Installation"

Rear Brake and Wheel Rear Brake Adjustment

1 Pedal height a Loosen the adjuster lock nut (for pedal height)

b. By turning the adjuster bolt clockwise or counterclockwise, adjust the brake pedal position so that its top end is approx 15 mm (0 6 in) below the footrest top end c Secure the adjuster lock nut r—WARNING:-

After adjusting the pedal height, the brake pedal free play should be adjusted.

2 Free play

Turn the adjuster on the brake rod clockwise or counterclockwise to provide the brake pedal end with a free play of 20 — 30 mm <0.8 ~ 1 2 in).

Brake Lining Inspection

To check see the wear indicator position while depressing the brake pedal or pulling the brake lever If the indicator reaches to the wear limit line to replace the shoes

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1 Wee»fcm«t 2 Wee* r¥j.cet<v

Spoke Adjustment and Tension

Adjust rear wheel spoke tension per front wheel instructions

Tire Pressure

See page 5-3 "Installation"

Drive Chain Tension Check

Before checking and/or adjusting, rotate the rear wheel through several revolutions and check tension at several points to find the tightest point Check and/or adjust the chain tension with the rear wheel in this "tightest" position

Inspect the drive chain with the center stand put Check the tension at the position shown in the illustration The normal vertical deflection is approximately 25 — 35 mm (10— 1 4 m) If the deflection exceeds 35 mm < 1 4 in) adjust the chain tension

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Drive Chain Tension Adjustment

1 Loosen the rear brake adjuster

1 Rear brake edfutte'

2 Remove the cotter pin of the rear wheel axle nut with pliers

3 Loosen the rear wheel axle nut

4 Turn the chain puller both left and right until axle is situated in same puller slot position on each side

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Rear Axle

Check axle nut

5 Tighten the rear axle nut

Front Fork Oil Change

Axle nut torque

Insert the cotter pin into the rear wheel axle nut and bend the end of the cotter pin as shown in the illustration (if the nut notch and the cotter pin hole do not match, tighten the nut slightly to match)

In the final step, adjust the play in the brake pedal.

Excessive chain tension will overload the engine and other vital parts; keep the tension within the specified limits. Also, replace the rear axle cotter pin with a new one.

Drive Chain Lubrication

1 First, remove dirt and mud from the chain with a brush or cloth and then spray the lubricant between both rows of side plates and on all center rollers

2 To clean the entire chain, first remove the chain from the motorcycle, dip it in solvent and clean out as possible Then take the chain out of the solvent and dry it Immediately, lubricate the chain to prevent the formation of rust

Recommended lubricant

Yamaha chain and cable lube or SAE 10W/30 motor oil

Securely support the motorcycle so there is no danger of it falling over.

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