Malaguti SPIDER MAX GT 500 Manual Diagnóstico página 219

SPIDER MAX 500
The spark advance value can be detected in any moment by means of the diagnostic multimeter.
Use a stroboscopical lamp, to make sure that the spark advance determined by the injection system corresponds to the
one actually used on the engine.
Proceed as follows:
- Remove the outside transmission cover as indicated in the "AUTOMATIC TRANSMISSION" chapter of the Engine
Service Manual.
- Remove the reference TDC inspection cap between the
flywheel and the cap carter. Refer to the FLYWHEEL CAP
paragraph (Engine Service Manual).
- Acting on the driving pulley nut, rotate the engine until
the TDC identification reference marks are reached.
- Align the driving pulley and the transmission cover by
means of the reference mark.
- Fit the inspection cap back on the flywheel side.
- Connect the diagnostic multimeter.
- Start the engine.
- Select the menu from the "PARAMETERS" function.
- Select the stroboscopical lamp control in the traditional 4-stroke engine position (1 spark, 2 revolutions).
- Make sure that the actual number of rpm and the spark advances match the data read by diagnostic multimeter.
In case the data does not match, check:
- distribution timing – engine rpm/speed sensor - injection central unit.
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