Viper 18600 173CC Operator's Manual page 12

ENGINE MAINTENANCE
For daily maintenance checks, review "pre-operation inspection"
section.
Lubrication
Choose engine oil that meets or surpasses the latest API service
classification. Synthetic oils may be substituted for petroleum-
based oils in extreme temperatures. For temperatures higher
than 32º F, use SAE 30 or SAE 10W-30 motor oil. Use SAE 5W-30
if temperatures are below 32º F. DO NOT USE SAE 10W-40
MOTOR OIL.
Note: See "Choosing Oil Type" in "Operation" section for
more information.
Oil Maintenance
After the first five hours of operating a new Viper® Engine the
oil should be replaced, and every 50 hours of operating time
thereafter. The oil should be changed every 25 hours if used
under severe conditions, such as in high temperatures or under
heavy loads, otherwise changed weekly. Check oil periodically;
do not overfill.
Changing Oil
Be sure the engine is not operating and is located on a level
surface before checking or refilling oil. Engine should be warm
for easy removal of oil.
1. Detach spark plug wire and move away from spark plug. If
the engine uses a battery, disconnect at negative terminal.
SEE FIGURE 5
2. Remove dipstick and carefully tip the engine toward the dipstick
side to empty oil from oil fill area. Empty oil into a suitable oil
container and dispose of oil properly. SEE FIGURE 6
3. Tip engine back onto a level surface and fill with appropriate
oil to the top of the marking on the dipstick. SEE FIGURE 6
4. Reinsert dipstick and tighten. SEE FIGURE 6
12
CAUTION
OIL IS HAZARDOUS WASTE
AVOID INJURY! ENGINE OIL IS HAZARDOUS TO YOUR
HEALTH. DISPOSE OF OIL APPROPRIATELY.
SAFE DISPOSAL/RECYCLING CENTER.
CAUTION
RUNNING ENGINE WITH AN LOW OIL LEVEL WILL
CAUSE DAMAGE TO YOUR ENGINE. THIS TYPE OF
DAMAGE IS NOT COVERED UNDER WARRANTY.
spark plug cap
FIGURE 5: Spark plug location
upper level
lower level
FIGURE 6: Filling and changing oil
Check for parts online at www.ardisam.com or call 800-345-6007 M-F 8-5
Operator's Manual
Viper® 173cc 4-Cycle Engine
dipstick
oil fill area
USE A