buell s1 lightning '97 Manuel

Check primary chain:

●

At the 500 mile (800 km) service interval.

●

At every 5000 mile (8000 km) service interval thereafter.

Check primary chain for correct tension by measuring its ver-
tical freeplay through the primary chain inspection cover
opening located near the top of the primary cover.

1.

 Remove two screws from primary chain

inspection cover. 

2.

Remove primary chain inspection cover.

3.

See 

 Check primary chain tension by mea-

suring vertical freeplay (measuring midway between
sprockets) several times, each time with primary chain
moved (by rotating engine) to a different position on
sprockets.

4.

Check primary chain tension against 

 If neces-

sary, adjust as described below.

NOTE

●

Measurements are taken with sprockets rotated to tight-
est chain position.

●

The initial primary chain vertical freeplay specification
used at the assembly plant is 1/4-1/2 in. (6.3-12.7 mm)
with a cold engine. The 1/4 in. (6.3 mm) minimum is only
allowed at the absolute tightest point in the drive, as
measured with specialized factory equipment. If a chain
has less than 1/4 in. vertical freeplay (with a cold
engine), adjust freeplay to the “field” specification of 3/8-
1/2 in. (9.5-12.7 mm).The looser specification will avoid
overtightening, which might otherwise occur during
adjustment using “non-factory” equipment and methods.

5.

Install primary chain inspection cover. Tighten screws to
40-60 in-lbs (4.5-6.8 Nm).

NOTE

If vertical freeplay cannot be set within the limits specified,
then primary chain and/or chain adjuster are worn beyond
adjustment limits. Replace parts as necessary. See Section 6.

1.

See 

 Loosen locknut and turn adjusting

screw:

a. 

Turn clockwise (inward) to reduce freeplay.

b.  Turn counterclockwise (outward) to increase free-

play.

2.

Tighten locknut to 20-25 ft-lbs (27.1-33.9 Nm).

Cold

3/8-1/2 in. 

(9.5-12.7 mm)

Hot (normal running temperature)

1/4-3/8 in. 

(6.4-9.5 mm)

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