R90 /5
This is the result
of 3 years of work. Originally a neglected wreck, I stripped this
motorcycle to the frame and built it up from parts. I replaced anything
that did not work properly, or was marginal. I tried to build an
early '70s era bike in the /5 tradition. Below is a list of the
specifications as well as the details of what has been replaced
or upgraded after I purchased the original motorcycle.
Specifications
Years of Parts
1974 R90 engine, cylinders,
pistons, and heads
1976 long wheel base frame
Early /5 headlight bucket/speedo
Early /5 original BMW mufflers
/5 4 speed transmission
/5 front wheel, /6 rear wheel
/6 battery covers
late /5 seat/grabrail, /6 seat cover
/5 electrics
New Parts
All new electrics except highbeam/horn switch
Stainless steel bolt kit
seat cover/moulding
clutch friction plate and spring
rear main seal
stearing head bearings
oil pump gasket
headers/crossover
mirrors
piston rings
Magura euro bars
exhaust nuts (finned)
Karcoma petcocks
valve covers
All new rubber
Metzler ME33/ME99A tires
taillight lenses
pushrod tubes/seals
Items Repaired or Replaced
Painted headlamp bucket tank, fenders,
and side covers
Powdercoated frame and subframe
Powdercoated /6 battery tray
Rebuilt tach/speedo
Rebuilt front shocks
Rebuilt transmission
Repacked front and rear wheel bearings
/5 mufflers (take-offs)
Bead blasted cylinders and heads
Valve job w/new exhaust valves
Enhancements Upgraded
diode board (Thunderchild)
Lightened and balanced flywheel
Keyed ignition switch (RockyPoint Cycle)
H4 55/65W headlight (Eurotech Motorsports)
/6 Starter Relay (Eurotech Motorsports) |
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