Zenoah BT251 manual Storage, Troubleshooting guide, Disposal, Check Probable Causes Action, 22 

Page 22

10. Storage

•Aged fuel is one of major causes of engine starting failure. Before storing the unit, empty the fuel tank and run the engine until it uses all the fuel left in the fuel line and the carburetor. Store the unit indoor taking necessary measures for rust prevention.

11.Troubleshooting guide

Case 1. Starting failure

CHECK

PROBABLE CAUSES

ACTION

fuel tank

➞

incorrect fuel

fuel filter

➞

fuel filter is clogged

carburetor adjustment screw ➞

out of normal range

sparking (no spark)

➞

spark plug is fouled/wet

 

➞

plug gap is incorrect

spark plug

➞

disconnected

➞drain it and with correct fuel

➞clean

➞adjust to normal range

➞clean/dry

➞correct (GAP: 0.6~0.7mm)

➞retighten

Case 2. Engine starts but does not keep running/Hard re-starting.

CHECK

PROBABLE CAUSES

ACTION

fuel tank

➞ incorrect fuel or staled fuel

carburetor adjustment screw

➞ out of normal range

muffler,cylinder (exhaust port)

➞

carbon is built-up

air cleaner

➞

clogged with dust

cylinder fin, fan cover

➞

clogged with dust

➞drain it and with correct fuel

➞adjust to normal range

➞wipe away

➞wash

➞clean

When your unit seems to need further service, please consult with our ZENOAH service shop in your area.

12. Disposal

•When disposing your machine, fuel or oil for the machine, be sure to allow your local regulations.rust prevention.

22

Image 22
Contents BT251 Safety First ContentsSpecifications Parts locationSymbols on the machine Working Condition For safe operationWorking Circumstance Working Plan Before Starting the Engine Starting the EngineUsing the Product Maintenance If Someone ComesTransportation Handling Fuel10  Installing Debris Guard SE2 Set upSE1 SE2 SE3 Installing Handle SE1 Installing Cutting Head SE312  HOW to MIX FuelFuel Recommended Mixing Ratio Gasoline 50OILFor Your Engine LIFE, Avoid Fueling the Unit13  14  OperationOP1 OP2 OP3 OP4 Starting EngineLine Head Usage Adjusting Idling Speed OP5OP5 OP6 Stopping Engine Trimming Grass and WeedsAdjusting the Line Length 16 Refilling Trimming Line Maintenance17  18  19  Muffler MA520  Spark ArresterMA6 MA7 Procedures to be Performed After Every 100 Hours of USE21  Disposal Troubleshooting guideStorage Check Probable Causes ActionLimited warranty 23 Zenoah