PROPULSION

OSM45581970 OS NEEDLE #7M/#7LFS Note: Graves RC Coupons are not applicable with this product     The needle valve is used to adjust the fuel/air mixture going into the carb.This is just the needle (and NOT the entire needle valve...

OSM45605000 OS CONNECTING ROD FS61,61M,70S,91 Note: Graves RC Coupons are not applicable with this product     This is the replacement connecting rod for the O.S. FS61, FS61-M, FS70 Surpassand the FS91 Surpass. FEATURES Constructed...

OSM45630000 OS CRANKSHAFT Rear Bearing FS61 Note: Graves RC Coupons are not applicable with this product     This is the Rear Bearing for the OS Max FS-61 Engine. INCLUDES One Rear Bearing   SPECIFICATIONS Inner...

OSM45761200 O.S. Tappet Screw FS-20/48 Note: Graves RC Coupons are not applicable with this product     This is the replacement tappet screw for the following OS engines:FS26 SurpassFS40 SurpassFS48 Surpass INCLUDES 1-Tappet screw...

OSM45808000 OS ENGINES DRIVE WASHER FS48, OS52SUR Note: Graves RC Coupons are not applicable with this product     This washer goes directly behind the propeller and has grooves that press upagainst the prop to keep the prop from slipping...

OSM45810100 O.S. Prop Locknut 40/48Surpass Note: Graves RC Coupons are not applicable with this product     This is a replacement locknut and wash set for the FS 40 - 48 surpass. Features: This helps keep the propeller stay on the engine...

OSM45903400 O.S. Piston Ring FS-91-P Note: Graves RC Coupons are not applicable with this product     This is the stock replacement Piston Ring for the FS91-S, and 91S II.This is located on the piston and seals it against the cylinder wall...

OSM45910100 OS LOCKNUT SET FS-91 SURPASS Note: Graves RC Coupons are not applicable with this product     This is the Propeller Locking Nut Set for the O.S. MaxFS-70 Surpass FS-91 Surpass FS-120 Surpass SE91 FX FS-91 Surpass II FS-120...

OSM45914010 O.S. Gasket Set FS-91-P Note: Graves RC Coupons are not applicable with this product     This is a Replacement Gasket Set for the O.S. FS-91SII(P) Engine. INCLUDES One Head gasket - This very thin metal gasket seals the...

OSM45960110 OS EXHAUST VALVE FS-91 SURPASS Note: Graves RC Coupons are not applicable with this product     Set includes one Exhaust Valve for the FS-91 Surpass

OSM45960210 OS ENGINES Valve Spring FS70 SII Note: Graves RC Coupons are not applicable with this product  

OSM45960400 OS VALVE COLLET FS-70 FS-91 SURPASS Note: Graves RC Coupons are not applicable with this product     This is the replacement Valve Collets for OS engines:FS70 SURPASSFS91 SURPASS INCLUDES 2- Valve Collets...