Identify YS motor
#1
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Identify YS motor
I picked up a old Sig Mustang 450 and it had this motor with a tuned pipe. The side says YS 45 FS the other side says Made In Japan. The carb is really weird in that you can not see a rotating barrel. The 2 nipples went to the fuel tank, I think and I have no idea what that screw is on the bottom. Any info would help and any guess as to the value would also be appreciated. The piston and sleeve look like it was run very little if at all.
Thanks
Thanks
#2
Front nipple is for the fuel intake to the carb the back nipple is to pressurize the fuel tank it is a loop feed puts 5 to 6 lbs. of pressure into the tank allows you to possition the tank as needed with no issues of feed this system allows a larger bored carb for more power you have a goooood engine there.
here is the review and specs
http://sceptreflight.net/Model%20Eng...s/YS-45FS.html
here is the review and specs
http://sceptreflight.net/Model%20Eng...s/YS-45FS.html
Last edited by Pond Skipper; 07-23-2017 at 01:40 AM.
#4
I picked up a old Sig Mustang 450 and it had this motor with a tuned pipe. The side says YS 45 FS the other side says Made In Japan. The carb is really weird in that you can not see a rotating barrel. The 2 nipples went to the fuel tank, I think and I have no idea what that screw is on the bottom. Any info would help and any guess as to the value would also be appreciated. The piston and sleeve look like it was run very little if at all.
Thanks
Thanks
1st This is a winner - treat them right and they will last, provide plenty of power and do some things that no other engine will do.
next. The carb is unique to this.45 and it's big brother the .60 . The rotating barrel has been replaced by a flat automotive type plate. This carb very finely meters fuel under high pressure providing consistent supply to the engine. Virtually any attitude or rotation cannot interrupt the supply of fuel to the engine.
next The two nipples are part of the most reliable fuel delivery system in the hobby. One nipple is for the fuel supply the other is for pressure to the fuel tank. the pressure line must have a check valve in line to prevent backflow and provide the needed pressure CAUTION HERE: the pressure can become quite high balooning tanks out and have been known to push out fuselage sides. To prevent this some modelers have used fiberglass reinforced packing tape around the tank to strengthen it.
Next.... Throttle response is immediate and unmatched in the hobby. I accidentally caught the throttle with my jacket sleeve one time and before I could do anything the plane leaped forward and the prop caught my jeans and climbed straight up my pant leg leaving 5 deep slices in my thigh. Emergency room time for sure (39 stitches in each cut) .
The engine is supplied without a muffler and they are hard to find. A Rossi muffler fits too but most guys (like me) use a tuned pipe.
Good Luck