Linhai Mini 80 User Manual

CHAPTER 3B ENGINE 50cc/80cc ATV SERVICE MANUAL09.0
CHAPTER 3B ENGINE PAGE 3B - 48 -
item Standard value Replace at
gap between inner rotator and external
rotor
--- 0.12mm 0.005in
gap between external rotor and pump body --- 0.12mm 0.005in
Engine oil pump
gap between and surface of rotor and
pump body
0.05-0.10mm
0.001-0.004in
0.2mm 0.008in
Problem diagnosis
Loss of engine oil Engine burning excessive oil
● engine oil natural consumption ● blocked oil passage
● engine oil leakage ● use of wrong oil
● piston ring wear bad assembly ● worn rings
● valve guide oil seal worn ● valves worn or damaged
No oil pressure
● pump worn
● use of wrong oil
● oil level low
3.7.2Engine oil / filter screen
Oil volume
● check oil with scooter parked on level ground on
center stand.
● put motorcycle on the plain place when oil
volume is checked.
● run engine for two or three minutes and stop.
After 2-3 minutes check oil level.
Check oil level when oil dipstick is screwed out.
Add oil to upper limit on dipstick.
Oil changed
It is easier to drain oil when motor is warms.
Remove drain bolt to drain oil completely.
Disassemble oil filter screen cover and take off oil
filter screen. Use high pressure air to clean filter
screen, wash with solvent and dry before
reinstalling.
Check O-ring for damage.
Replace if necessary.
Assemble engine oil filter screen and filter screen
cover.
Torsion value:15N.m 10.8ft.lbs
Add assigned oil to determined volume.
Engine oil capacity:0.8L
Check for oil leaks.
Run engine for 1-2 minutes at idle speed.
Turn engine off and check oil lever.
Add if necessary.
3.7.3 Oil pump removal

Linhai Mini 80 Specifications

General

Brand	Linhai
Model	Mini 80
Category	Offroad Vehicle
Language	English