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Tune Up Quick Reference (250, 360, 400 models)

QUICK REFERENCE DATA

Yamaha Enduros

(This document is available in our download section)

 points  timing marks

Magneto Timing

Loosen screw (A), then pry stationary contact with screw-driver inserted into slot (B) until breaker points just open when piston is at distance below top dead center specified in table below

CDI Timing

To Adjust ignition timing on models with DCI, loosen pulser setscrews, then align timing marks when piston is at distance below top dead center specified in table below

 

ENGINE TUNE UP

Model

Spark Plug

Spark Plug

Gap (in.)

Ignition Timing

 

NGK

ND

inch

mm

DT1, DT1B

B7E

-

0.024

0.126

3.2

advance

 

Wedge lever in

 full advance position

 when setting timing.

DT1C, DT1E

B8ES

W24ES

0.024

0.126

3.2

DT2, DT3

B8ES

W24ES

0.024

0.126

3.2

DT1C-MX, DT1E-MX

B10EN

W31EN

0.024

0.091

2.3

DT2-MX

B9EV

W27ESG

0.024

0.091

2.3

MX 250

B8EV

W24ESG

0.024

0.091

2.3

YZ 250

B8EV

W24ESG

0.016

0.091

2.3

DT 250

B8ES

W24ES

0.024

0.126

3.2

RT1, RT1B

B9ES

W27ES

0.024

0.114*

2.9*

RT1-MX, RT1B-MX

B9EN

W27EN

0.024

0.114

2.9

RT2, RT3

B9ES

W27ES

0.024

0.114

2.9

RT2-MX

B9EV

W27ESG

0.024

0.098

2.5

DT 360

B9ES

W27ES

0.024

0.114

2.9

MX 360

B8EV

W24ESG

0.016

0.098

2.5

YZ 360

B8EV

W24ESG

0.016

0.091

2.3

DT 400

B9ES

W27ES

0.024

0.106

2.7

*See drawing

NOTE:   On models with magneto ignition, point gap adjustment

 is not required except for that which is made to adjust ignition timing.

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