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2. GENERAL INFORMATION VITALITY 50
POOR PERFORMANCE (AT HIGH SPEED)
Inspection/Adjustment Symptom Probable Cause
Check ignition timing.
Faulty CDI unit
Correct timing Incorrect timing Loose A.C.G. stator
Faulty A.C. generator
Check auto fuel valve
for fuel supply.
Empty fuel tank
Fuel flows freely Fuel flow restricted Clogged fuel tube or filter
Clogged charcoal canister
Check carburetor jets
for clogging.
Not clogged Clogged Clean and unclog
Remove auto bystarter
connecting wire and
check if bypass fuel
line is clogged.
Not clogged Clogged Broken auto bystarter wire
Faulty auto bystarter
Connect auto bystarter
wire to battery. Wait for
5 minutes, then connect
a hose to fuel enriching
circuit and then blow
the hose with mouth.
Clogged Not clogged Faulty auto bystarter
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