Cylinder Numbering; Engine Rotation; Tune-Up; Air Filter Replacement - Yamaha V star 1100 Owner's Manual

LUBRICATION, MAINTENANCE AND TUNE-UP
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For convenience, most of the procedures listed in
Table 1 are described in this chapter. Procedures
that require more than minor disassembly or adjust-
ment are covered in the appropriate chapter in the
manual. Refer to the Table of Contents or Index to
locate a particular procedure.

CYLINDER NUMBERING

The rear cylinder is the No. 1 cylinder; the front
cylinder No. 2.

ENGINE ROTATION

Engine rotation is clockwise when viewed from
the left side. Use the flywheel nut to rotate the
crankshaft manually, and always turn the crankshaft
clockwise.

TUNE-UP

A complete tune-up restores performance that is
lost due to normal wear and deterioration. Because
engine wear occurs over a combined period of time
and mileage, perform the
procedures at the intervals specified in Table 1.
More frequent tune-ups may be required if the mo-
torcycle is primarily operated in stop-and-go traffic.
The Tune-Up Specification label provides
tune-up specifications. This label is on the lower
frame member just beneath the left side cover (Fig-
ure 1). Always refer to the specifications on this la-
bel when servicing the motorcycle. If the
specifications on the label differ from those in this
manual, use the specifications from the label.
When performing a tune-up, service the follow-
ing items as described in this chapter:
1. Air filter.
2. Spark plugs.
3. Engine compression.
4. Engine oil and filter.
5. Ignition timing.
6. Valve clearance.
7. Carburetor adjustment.
8. Brake system.
9. Suspension components.
10. Tires and wheels.
11. Fasteners.

Air Filter Replacement

The air filter removes dust and abrasive particles
from the incoming air before it enters the carbure-
tors and the engine. Without an air filter, very fine
particles could enter the engine and rapidly wear the
piston rings, cylinders and bearings. These particles
could also clog small passages in the carburetors.
Never run the motorcycle without the air filter ele-
ment installed.
The air filter is a dry-element type; no oiling is re-
quired. Proper air filter servicing can do more to en-
sure long service from your engine than almost any
other single item. Remove and clean the air filter el-
ement at the interval listed in Table 1. Replace the
air filter if it is soiled, severely clogged or broken in
any area.
1. Make sure the ignition switch is off.
2. Securely support the motorcycle on level
ground.
3. Remove the cover screws (A, Figure 2), and re-
move the air filter cover (B).
4. Remove the air filter element from the posts
(Figure 3) on the housing.
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engine tune-up
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