se non è questo:
http://manuals.hobbico.com/osm/fs-120s-e-manual.pdf
puoi provare direttamente alla OS
"I've lost the manual for my OS engine. How can I replace it?
Unfortunately, we do not stock the manual for your equipment separately. However, we can have our office copy photocopied for you at a charge of $10.00 plus $5.50 shipping (US) or $13.50 shipping (international). If you wish to purchase a copy from us, please fax us at 217-398-7721 with a credit card # for payment (Visa/MasterCard), or mail us a check to:
Hobby Services
3002 N. Apollo Drive, Suite #1
Champaign IL 61822
Unfortunately, we are unable to send out via open account (with an invoice) due to our computer system setup.
PLEASE NOTE: We require the following information:
The name of the specific product (ie. Kyosho Lazer Alpha 4WD #3036 or OS .91 FX #19020) (as much info as you have if you are not sure of the exact name);
Your mailing information;
Your payment information; and
Your return phone number and email address to provide you confirmation of your order.
Please note that copied manualscannot be returned or refunded. If you are unsure the name/make/model # of your kit, please ask for help from fellow modelers to be sure your purchase is correct. Please be sure you provide us the kit # or full kit name when we take an order to copy your manual or plans, as we cannot refund the cost if what you receive is incorrect"