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UBS Hydro II
Faults / fault removal
Fault
Petrol engine becomes too
hot
Petrol engine has black-
outs at high speed
Petrol engine often goes
out at no load
Petrol engine works
irregularly
Petrol engine does not go
out in Stop position
Petrol engine too less
power
2018-05-02
Possible causes
Fuel line is plugged or fuel is bad
Ventilation in the fuel tank cap
plugged
Water or dirt in the fuel system
Air filter dirty
Gasifier wrongly adjusted
Too less engine oil
Cooling air system restricted
Air filter dirty
Gasifier not correctly adjusted
Ignition distance too small
No-load mixture not correctly
adjusted
Ignition distance too wide, spark
plug defective
Gasifier not correctly adjusted
Air filter dirty
Governor control linkage polluted,
jams
Engine-Stop line defective
Missing earth contact
Air filter dirty
Cylinder head gasket loose or
gasket damaged
Too low compression
48 / 60
Remedy
fastening
Firmly plug the spark-plug terminal on
the spark plug
Replace fuel filter or fill in fresh fuel
Replace the fuel tank cap
Discharge fuel and clean; fill in fresh
fuel
Clean the air filter or replace it
Adjust the gasifier
Immediately refill engine oil
Clean the fan grill; clean the internal
clean the cooling fins
Clean the air filter or replace it
Adjust the gasifier
Adjust spark plug
Adjust the gasifier
Adjust or replace the spark plug
Adjust the gasifier
Clean the air filter or replace it
Clean the governor control linkage
Check the line and the connectors
Check the earth contact
Clean the air filter or replace it
Tighten the cylinder head gasket;
replace seal
Get the engine checked
EN
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