Yamaha U-MAX G23A, Owner'S/Operator'S Manual, Page: 52 / 84

8-2
PERIODIC MAINTENANCE/LUBRICATION
NOTE:
●
For vehicles not equipped with an odometer or an hour meter, follow the month maintenance intervals.
●
For vehicles equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance intervals. However, keep in
mind that if the vehicle isn’t used for a long period of time, the month maintenance intervals should be followed.
ITEM ROUTINE
Whichever
comes first
INITIAL EVERY
month 1 6 6 12
km
(mi)
160
(100)
1,000
(600)
1,000
(600)
2,000
(1,200)
hours 20 125 125 250
Valves*
• Check valve clearance.
• Adjust if necessary.
Spark plug
• Check condition.
• Adjust gap and clean.
• Replace if necessary.
Air filter element and pre-air filter
element • Clean.
• Replace if necessary. Every 20–40 hours
(More often in wet or dusty areas.)
Carburetor*
• Check starter operation.
• Adjust if necessary.
Exhaust system*
• Check for leakage.
• Tighten if necessary.
• Replace gasket(s) if necessary.
Fuel line*
• Check fuel hose for cracks or damage.
• Replace if necessary.
Engine oil • Replace (warm engine before draining).
Transmission oil
• Check oil level/oil leakage.
• Replace.
Every 4 years
Brakes*
• Check operation/brake shoe wear.
• Correct if necessary. Replace shoes if worn to the limit.
Accelerator pedal*
• Check operation and free play.
V-belt*
• Check operation.
• Check for wear, cracks, or damage.
UJU510.book Page 2 Tuesday, May 18, 2004 11:28 AM