Description
BMW R90S 1043CC HPN SPECIAL
R100RS Donor engine fitted with HPN 1043cc High Compression kit1987
see link: - details above
1043 Big Bore Kit 1043cc
complete set made in Germany (art. nr. 307Comes with: Cylinders with stainless steel pushrod tubing, pistons, head gasket, shortening of your cylinder bolts and pushrods, shortened intake manifolds, adaption of the squish area of your cylinder heads, TÜV certificate. Power output depending on the compression ratio and accessory from 48 kW (68 hp) to 53 kW (75 hp), weight saving compared to 980 ccm serial parts about 1, 1kg, the piston is 182g lighter than the serial part. Engine width is reduced for 26mm.
Dual Plugged
Gas Flowed
Sump Extension & AND Deep Pan sump
Carbs Vapour Blasted rebuilt all new Gaskets & 'O" rings & Diaphragms
Engine built by Andrew Sexton at a cost of over £7250
All new cables, all fluids/ Filters changed
Gearbox Splines & drive splines lubricated (Starbuag)
1981 Gearbox fully rebuilt with all 6 bearings replaced by Roger Bennett Engineering
1974 BMW R90S Frame, PRIMED & Powder coated in Laverda Jota Silver
Registered as a 1974 BMW R90s therefore MOT & Road tax (VED) Exempt
"Brembo" forks and calipers
Calipers fully rebuilt, new seals pads & "O" rings
"Wheels laced with Stainless spokes & rebuilt by "Doug Richardson
Rewired
Master Cylinder 13mm rebuilt
New 'S' Type Bmw Cockpit Fairing (Superb Quality) fitted with fully functioning Analogue clock & Voltmeter
Dual Seat With R90s Grab Bar
( R90S handlebars ( Genuine)
R90s ORIGINAL Handlebar clamps
Steering head Bearings Renewed
Later Type Switchgear (1981)
"DYNA TEK" Coils fitted with correct Ballast resistor in modified Heat sink, New HT leads, correct Spark plugs for Dual Plugged heads
Boyer Ignition
Round / Peanut Type Rocker covers
Surefoot" side stand"
Keihan" Stainless Silencers""
MOTOBATT UHD 30Amp/ Hr Battery
"Nippon Denso" high performance/ High torque Starter motor (Toyota)
A4 Box File of receipts for work completed & parts
Bevel drive fully rebuilt by Roger Bennett
freshly powder coated springs)) KONI "Dial-a-Ride" Shocks
All fastenings stainless steel and hand polished to remove raised lettering
Paintwork by "J & S Racepaint" in BMW Daytona Orange
This is not a comprehensive list of Parts & labour performed in the build of this superlative Motorcycle.
Should you require further details and/ or photos/ Video of this motorcycle please email me at using the button below
Currently registered in Northern Ireland on a Dateless Number plate.
