1985 BMW K100
Feel free to contact me with any questions or requests.
Complete ground-up rebuild of a 1985 BMW K100. Less than 300 miles on the build.
No compromises on materials, craftsmanship, or mechanics. Over 700 hours of engineering/mechanical labor in this build.
Engine is rebuilt as a zero-mile engine. Every bearing, bushing, seal, stretch bolt was replaced. All new gaskets. New timing chain and chain guides. Valves reseated, new valve guides. New piston rings. New injectors and o-rings. New coils, plugs, and H/T leads. New upgraded aftermarket Hall effect sensor.
83s through 1985s came with hotter cams before EPA neutered the bikes. This bike made an honest 100hp from the factory- with higher flow injectors and appropriately tuned MAF, polished head ports, free exhaust, and properly tuned ignition timing, this bike makes noticeably more, in a 100# lighter package.
Transmission opened and inspected, seals replaced.
Final drive opened and inspected, cleaned, and flushed.
Radiator is the thicker 3-core for better cooling.
New Spal fan runs quieter with more CFM than OEM.
All black paint is Eastwood Ceramic Engine Paint. Exhaust headers are coated in Cerakote C7600Q. Bike has been heat cycled many times with no damage to the paint (about 2-300 miles on the rebuild).
All exposed engine cover bolts are new Stainless, installed with non-metallic anti-seize.
All hi-strength bolts are new zinc-coated Grade 12.
New Uni Air filter.
New throttle body boots and breather hose.
New wheel bearings front and back.
New YSS shock, progressive springs in the front. Sag set at 30% for the new (much lighter) bike weight. Adds 1.5 cm of clearance.
Complete new rebuilt water/oil pump with the late-style impeller.
Brembo-rebuilt brake calipers and master cylinders. Stainless-braid brake lines from Venhill. EBC pads.
New swingarm boot, clutch pushrod boot, fork gaiters, brake line grommets, wire grommets.
Trans splines and driveshaft splines lubed with Staburags NBU 30.
New SKF fork seals.
Shinko 705 tires.
New tapered head tube bearings.
New fuel pump, rubber mount, and fuel filter. All fuel lines are new.
All cables are new.
Both levers are Brembo and match.
New Shorai LFX-18 battery.
New Max-Inc 5 3/4 H4 headlight. Front blinkers are Motogadget Blaze pin. Rear lights are Revival flexible Run/Brake/Blinker lights.
Instruments are Motogadet Mini with the indicator frame. Indicator lights are for blinker, Hi-beam, warning light, Neutral light, and low fuel. BEP 3.0 is used to provide signals to the dash.
The blue paint is a metal flake, the white is a 3-stage pearl.
All electrical is run by an M-unit Blue. Use your phone to configure your controls settings, track statistics, even turn it on.
Included with the sale is a K-bike manual, as well as all my documentation on the electrical system- a wiring diagram, all my notes, and all the manuals for the instruments.
I developed and drew the schematic that is being passed around the internet and is being used by custom builders to wire a K-bike with an M-unit.
Handlebar controls are handled by a unit from a Triumph Scrambler, Left side. Ignition on, start, blinkers, and high-beam.
Both fenders are retained. Rear fender is trimmed to be aesthetically unintrusive, but keep the wheel from throwing grit all over the engine.
Handlebars are a scrambler aesthetic and a good, comfortable riding position. Huge improvement over cheap clip-ons.
Center stand only, for many reasons.
None of the foot control contact surfaces are painted, to avoid damaged paint with use.
Accessible pigtail connector under the seat for easy charging, should it ever be needed. Lithium batteries hold charge extremely well.
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