2004 YAMAHA TW125 check engine

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YAMAHA TW125 2004  Owners Manual  
PERIODIC MAINTENANCE AND MINOR REPAIR 
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* 
Tires 
 
Check tread depth and for damage. 
 
Replace if necessary. 
 
Check air pressure. 
 
Correct if necessary. 
√

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YAMAHA TW125 2004  Owners Manual  
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To install the panel
Place the panel in the original position.
 
EAU19602 
Checking the spark plug  
The spark plug is an important engin

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YAMAHA TW125 2004  Owners Manual  
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necessary. 
To install the spark plug 
1. Measure the spark plug gap with a
wire thickness gauge and, if nec-
essary, adjust the gap to

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YAMAHA TW125 2004  Owners Manual  
PERIODIC MAINTENANCE AND MINOR REPAIR 
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crankcase.
NOTE:
 
The engine oil should be between the 
minimum and maximum level marks.
4. If the engine oil is below the mini-
mum lev

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YAMAHA TW125 2004  Owners Manual  
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11. Install the oil strainer, compression
spring, O-ring and engine oil drain
bolt, and then tighten the drain bolt
to the specified tor

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YAMAHA TW125 2004  Owners Manual  
PERIODIC MAINTENANCE AND MINOR REPAIR 
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4. Remove the sponge material from
the air filter element frame, clean it
with solvent, and then squeeze the
remaining solvent out.
5.

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YAMAHA TW125 2004  Owners Manual  
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EAU21280 
Adjusting the carburetor  
The carburetor is an important part of
the engine and requires very sophisti-
cated adjustment. The

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YAMAHA TW125 2004  Owners Manual  
PERIODIC MAINTENANCE AND MINOR REPAIR 
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EAU21380 
Adjusting the throttle cable
free play  
The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
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