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Rotary Valve/disc Position ?

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Just building our motor back up and wish to confirm the disc position at TDC.

Any pictures or sketches or a description available, please ?

Many thanks.

  • Author

Thanks, I have seen that before and was confused that the leading edge of the disc was positioned at the start of the inlet aperture and not opposite the timing mark indicated ?

What's all that about - am I missing something ?

Thanks, I have seen that before and was confused that the leading edge of the disc was positioned at the start of the inlet aperture and not opposite the timing mark indicated ?

What's all that about - am I missing something ?

Contact Martin Matthews, he will be able to help.

http://www.motoswm.com/

Ignore the timing mark , the diagram was downloaded from the SWM dealer manual and also showed the settings for all the MX and enduro versions...so I tidied it up just to show the trials setting.

  • Author

OK, many thanks for the clarification.

We can now complete the bottom end and make some progress !

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