Zhejiang Qianjiang Motorcycle RKV 200 Service Manual download pdf (Page 20)

Electrodes of spark plug are wet.

Electrodes of spark plug are dry.

Check overflow of carburetor

Drop a little gasoline into the cylinder for a trial start.

1. Check if there is

foreigh substance

between needle valve

and valve seat of

carburetor float so that it

cannot be closed; 2.

Check if the conical

surface of needle valve of

carburetor float is worn

into a step form; 3. Check

if the float is broken; 4.

Check if float is too low.

Check if air filter

is clogged.

Engine stalls when it

runs a very short

time.

Engine can

continue to run

when it is started.

Carburetor is

clogged inside or

float is too high.

Carburetor

starter (i.e

cranking

enrichment

system) fails.

1. Check leakage at

external connection parts

of engine; 2.Check valve

timing; 3. Check if valve

clearance is too small; 4.

Check tightness between

valve and valve seat;

5.Check if piston ring is

stuck inside the ring

groove or of less

elasticity; 6. Check wear

and tear of piston ring

and cylinder.

1. Check if breather on

the fuel tank cap is

clogged; 2. Check if

fuel filter and fuel

switch are clogged; 3.

Check if fuel switch

works normally; 4.

Check if oil intake of

carburetor is clogged;

5. Check if carburetor

float is too high.

Remove

spark plug

and check.

Yes

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Zhejiang Qianjiang Motorcycle RKV 200 Service Manual Page 20

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