Trouble Shooting
Trouble Shooting
Description
Cause
Fix
Spark Plug 1. Wet Spark Plug Electrode
Dry Electrode
2. Carbon Deposits On The Electrode
Clean Spark Plug
3. Spark Plug Insulator Damage
Replace Spark Plug
4. Improper Spark Gap
Adjust To 0.6-0.7mm
5. Burned Out Electrode
Replace Spark Plug
Magneto
1. Ignition Coil Inside Failure
Replace Spark Plug
2. Damaged Cable Sheath or Disconnected Cable
Replace Or Repair
Switch
1. Switch Is Off
Turn On Switch
2. Switch Failure
Replace Switch
3. Primary Wiring Is Grounded
Repair
Engine Does Not Start - No spark in spark plug
Description
Cause
Fix
1. Too much Fuel In Engine
Drain Excess Fuel from Engine
2. Fuel too Rich
Adjust Carburetor
3. Flooded Carb
Adjust Carburetor or Replace
4. Poor Fuel Quality
Exchange with Proper Fuel
1. Worn Out Cylinder, Piston, or Piston Ring
Replace Cylinder & Piston Set
2. Gas Leakage from Cylinder & Crank Case Gasket
Apply Liquid Gasket & Reassemble
1. Choked Breather Air Hole
Clean Breather
2. Clogged Carburetor
Clean Carburetor
3. Fuel Lines Improperly Installed
Check Fuel Lines
Engine Does Not Start - Sparks appear in the spark plug
Compression
& Fueling Is
Normal
Fueling Normal
But Poor
Compression
No Fuel
Supply
Description
Cause
Fix
1. Air Leak in Fuel System
Check Connections
2. Air Leak at Intake Tube Joint or Carburetor Joint
Replace Gasket or Tighten Screws
3. Water in Fuel
Replace Fuel
4. Piston Seized
Replace Piston & Cylinder
5. Muffler has Excessive Carbon Build-up
Clean Muffler
1. Carburetor Set too Lean
Adjust Carburetor
2. Poor Fuel Quality
Replace Fuel
3.
Excessive Carbon Build-Up in the Combustion Chamber
Clean Combustion Chamber
4. Spark Plug Electrode Red Hot
Thoroughly Clean, Adjust
Spark Gap
[0.6-0.7(0.023-0.028in)]
1. Over Loading
Reduce Load
Lack of Power or Poor Performance
Compression
Is Normal w/
No Misfire
Overheating
Others
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Summary of Contents for VEN-1827
Page 10: ...Notes Notes...