WWII Military Theme Motorcycle w 270 degree rephased 750 big bore xs650 motor

The inspiration for this project came surprisingly from a Bloomingdales catalog with a vintage World War II motorcycle on the cover. Something about the look really appealed to me. After doing some research on the military motorcycles from that era & realistically evaluating my riding environment, decided I wanted a modern interpretation of a WWII military motorcycle with a more modern power plant and an updated braking system.“I wanted the bike to be a combination of different elements of the various motorcycles from that era”.The donor bike chosen was a 1980 Yamaha XS650. Taking the engine as a basis for the project - partially because it was economical and highly modifiable, lso because I liked the more symmetrical look of the engine. After a long search, settled on the guys at Cycle Service Sales to build this project for me. Bill Giordano has a lot of experience with very old school motorcycles, nd I really needed someone that was familiar with the motorcycles of that era to pull this project off.We chose certain elements for the project that would make it look more authentic like the Big Twin Harley or WLA style springer fork, military solo seat and the seat springs from a 741 Indian Scout. The XS motor in the bike is equipped with a 270 degree re-phased crankshaft and a billet camshaft, lus a high ratio primary gear set and clutch assembly with the machine work being performed by Heiden Tuning from the Netherlands. The cylinder head porting work was done by Gary Hoos Racing, ses 2mm oversize Inconel Alloy valves. The motor is also equipped with a Mikes XS 750 big bore kit and myriad of other performance parts from both Heiden Tuning and Mikes XS. Ignition chores are handled by a 270 degree re-phase Pamco Ignition System and a Sparks Three Phase charging system keeps everything running. Various engine parts both internal and external were sent to Performance Coatings for thermal and ceramic engine coatings.In choosing to make the bike very period correct, ost of the sheet metal and the running gear required extensive reworking to fit the custom built XS650 hard-tail frame and motor combination. A set of custom made header pipes was also fabricated for the project that flow into a set of modified Big Twin 36 to 40 style mufflers.The XSLA project features 18 inch black Big Twin Star Hub wheels with stainless steel spokes, von Safety Mileage tires, dart front and rear Disc Brake conversion kits and Jay Brake master cylinders for both of the front brake and hydraulic clutch controls. The rear brake control assembly is fitted from a 58 to 69 Big Twin FL and the hydraulic clutch conversion uses a slave cylinder assembly from a Honda VFR.This XSLA is a modern re-creation of yesterday’s and today’s technology blended together to make one’s inspiration a true reality.
The Motorcycle is currently not running and atRRP Cycle Stuff Inc inStewartsville to have an electrical issue fixed.
TechSheetBuilder: Cycle Service Sales, LCHigh Bridge, JWilliam Giordano – Anthony LivelliPhil Delano – Performance WeldingLebanon Boro, JYear/Model: 1980 Yamaha CustomPowder Coater: Acme Powder CoatingColor: Federal Standard - Olive GreenArmy
Engine/Transmission
Engine: Yamaha XS650 baseBuilder: Cycle Service Sales, LCCrankshaft: 270 Re-phase by Heiden Tuning.Cylinder: Mikes XS 750 Big BoreHead: Ported & Polished byGary Hoos RacingCarbs: 36 mm Mikuni VM (2)Exhaust: Custom FabricatedIgnition: Pamco 270 Re-phaseCoils: Mikes XSCharging System: Sparks 3-phaseTransmission: Yamaha 5 speedPrimary Gears & Clutch: Heiden Tuning custom High RatioHydraulic Clutch: Custom- Honda VFR slave cylinderFinal Drive: 530 Diamond Chain
ChassisFrame: Custom made Hardtail with 28 degree rakeFront Fork: Big Twin SpringerFront wheel: 18” Star Hub BlackRear wheel: 18” Star Hub BlackFront Brake: 11.5” Edart Disc KitRear Brake: Edart Rear Disc KitTires: 18” Avon Safety MileageFront Fender: WLA ReproductionRear Fender: WLA Reproduction
Accessories
Headlight: Springer – Halogen BulbTaillight: Modified Military Jeep – with LED lightingFuel Tanks: Modified Early Big Twin reproductionsFuel Petcocks: PingelHandlebars: Modified SpringerHand Controls: Jay Brake – BlackMirrors: Modified WLA assembliesHorn: 12 volt Springer with WLA face plateSpeedo: Military WLA ReproSeat: Replica WLA armySeatSprings: Indian 741Floor Boards: Military WLA ReproFloor Board Mounts: 45 & Big TwinRear Brake: 58 to 69 Big Twin Wagner styleToolbox: Modified Harley Kidney ShapedChain Guard: Modified Big Twin Rigid

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