LONCIN G120F User Manual

G120F/G160F/G200F Part II Description of maintenance
- 17 -
2-4 Troubleshooting
1. General symptoms
and possible causes
Engine will not rev
sufficiently. Poor
performance at high
speed
Fuel filter clogged
Carburetor faulty
Ignition coil air gap incorrect
Ignition coil faulty
Spark plug faulty
Governor out of adjustment
Spark plug faulty
Governor out of adjustment
Valve clearance incorrect
Valve seat improperly
Cylinder, piston or piston ring worn
Spark plug faulty
Governor out of adjustment
Carburetor faulty
Governor out of adjustment
Valve clearance incorrect
Poor performance at
low speed
Engine lacks
power
Hard starting
Clean P27（3-6）
Readjust
P29
（
3
-
8
）
Disassemble and inspect
P37（4-3）
Readjust P40（4-5）
Inspect P40（4-5）
Readjust P30（3-10）
Inspect P28（3-7）
Inspect P28（3-7）
Readjust P30（3-10）
Readjust P29（3-9）
Inspect and recondition P44
(4-6)
Disassemble and inspect
P50 (4-7)
Inspect P28（3-7）
Readjust P30（3-10）
Readjust P29 (3-8)
Disassemble and
inspect P37 (4-3)
Readjust P29 (3-9)
Readjust P30 (3-10)

LONCIN G120F Specifications

General

Brand	LONCIN
Model	G120F
Category	Engine
Language	English