background image

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

- 7 -

Summary of Contents for VEN-1827

Page 1: ...Marine Engine but you have also joined the Venom Team and it s world class product line and customer service Please fully read and understand this instruction manual BEFORE operating this product Not...

Page 2: ...ot use gasoline with any alcohol or ethanol added Use a high performance 2 Stroke Premix Engine Oil Mix Ratio 20 25 parts Oil to 1 part Gas 20 25 1 for break in period 30 1 standard mixture The carbur...

Page 3: ...ngine in place 7 Repeat as necessary until the engine either starts or shows signs of starting 8 You may adjust the low speed needle either open or close to help the engine start but only in small inc...

Page 4: ...full power If not readjust the High Speed Needle until you hear a smooth crisp exhaust note This will be the maximum performance setting for that particular day and will require fine tuning depending...

Page 5: ...spark plugs and try to determine the cause of the fouling Its ok to clean a spark plug if a replacement is not available but for optimum performance the fouled plug should be replaced The color of th...

Page 6: ...ce of an optimal propeller Some experimentation will be required to obtain the best performance possible Propeller Diameter range 65 75mm Pitch Ratio range 1 4 1 9mm Pro Tuner Tip Experiment with mult...

Page 7: ...g 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...

Page 8: ...stomer Service at 800 705 0620 or customerservice venom group com Copyright 2008 by Venom WARNING This product is not a toy It is not recommended for children under 14 years Minors should be accompani...

Page 9: ...31 Cylinder Gasket KWA VEN 1832 26cc Piston KWA VEN 1833 Piston Ring VEN 1834 Piston Pin VEN 1835 Snap Ring VEN 1836 Positioning Washer VEN 1837 Need Bearing VEN 1838 Intake Gasket VEN 1839 Bolt M5 25...

Page 10: ...Notes Notes...

Page 11: ...vice 800 705 0620 customerservice venom group com www venom group com Venom Group International United States of America 600 West Buckles Road Hayden ID 83835 Australia P O Box 7325 Alexandria NSW 201...

Reviews: