OK, I could never get an exact answer so I emailed GG from their website and...they quickly responded so here you go, valve specs for 2009 450fsr
Dear Mr xxxxxx,
First of all, we would like to thank you the interest in our brand.
Regarding to your request, please find below the information needed:
Intake: 0.15mm
Exhaust: 0.20 mm
For any other technical information, we recommend you to contact our importer in your country.
You will find the list of importers in our website
http://www.gasgasmotos.es/en/dealers.html
Best regards,
logo
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Atenci?n Cliente
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Calle Unicef, N? 17 (Pol. Industrial Torremirona)
17190 Salt (Girona) Spain
Tel. +34 972 40 61 15 Fax. +34 902 47 61 60
E-mail:
officegg@gasgasmotos.es
Web:
www.gasgasmotos.es