Best of Show
Bigtwin Bike Show 2014
Yamaha XS 650 ’Den Koperen
Ploert’ Boardtracker by Mario van Kruijsbergen.
Mario won the Best of Show Award with his Boardtracker style XS 650.
Mario has been
riding motorcycles for 25 years. First a lot of Japanese bikes,
then many H-Ds
such as Shovels and Sportsters.
He built this
bike to do something different, not to build the common H-D Chopper.
He liked
the looks of a boardtracker.
Mario bought a
shitload of Parts, a van full, from a guy who was wrenching on bikes in his
garage. The sale was to be 3 complete bikes, but turned out to be 2 ½ That was over a year ago. Mario then started to build his Yamaha Boardtracker, and he did all the work himself!
garage. The sale was to be 3 complete bikes, but turned out to be 2 ½ That was over a year ago. Mario then started to build his Yamaha Boardtracker, and he did all the work himself!
As usual, not
everything went as smooth as a builder hopes it wood. Problems during the build
were: “The engine. I’ve used 3 engines to make one good, running engine.
Turning the cylinder head was a lot more work than I’d expected! It took a lot
of time and work such as welding, grinding, milling etc. and I had to make the (handmade)
lifters myself, “ Mario explaines.
The bike has already
changed three times since he build it. A homebuild bike is never ready and
Mario is never satisfied. Now the wiring needs attention and when that’s done,
the bike will be taken apart again and will be build up and prepared for
technical inspection for an offical motorcycle license.
Technical Details
(as stated by
owner / builder)
Owner: Mario van Krijsbergen
Builder: Mario van Krijsbergen / Kruyswater
Motorfietsen
Make: Yamaha
Model: XS650
Building time:
No idea, a couple of hours every day, one year
Engine
Year: 1978
Builder:
Yamaha
Displacement / cc’s: 650
Type: Twin
Cases: stock
Crank:stock
Pistons:stock
Cylinders:stock
Cylinder heads: Flowed and turned around
Valves: stock
Cam: stock
Lifters: self made, because the lifter has to
follow the other lobe on the cam ‘cause the head’s been turned around.
These are now roller lifters so more clearance was
needed in the valve covers and the oil spray system had to be modified
Oilpump: stock
Fuel system: stock carbs
Airfilter:
aftermaket velocity stacks with home made aluminum / brass fly cathers
Ignition: Home made, electronic Multi spark system
Exhaust system: Home made steel, with nickel
plating
Transmission
Year and type: Yamaha 1978 stock
Frame
Year: 2013
Builder / Make: Kruyswater Motorfietsen “Yamaha Vintage Racer” hardtail
Rake: 37,5
graden
Stretch: 1”
Wheelbase: 1550mm
Front
End
Make: Kruyswater Motorfietsen
Type: Webspringer
Length: 700mm
Yokes: Fork is completely home made by Mario in
steel and has bronze powdercoating, springs and rockers with nickel coating.
Front
wheel
Type: Spoke wheel
Size: 21”
Rim:21”x1,65
Spokes: Stainless steel with messing nipples
Hub: Honda brakehub
Rear
wheel
Type: Spoke wheel
Size:21”
Rim:21”x 3,5
Spokes: Stainless steel with messing nipples
Hub: Modified H-D Sportster
Brake: Drum, modified Kawasaki with home made
sprocket/drum/hub
Tyre: Metzeler 120-70x21
Accessoiries
Rear fender:
stock aftermarket with copper plating
Fender struts: home made
Fuel tank: home made fiberglass with copper plating
(!) righthand side is for fuel, lefthand side houses the electronics
Handlebars: home made steel with nickel coating
Grips: home made out of wood
Handlebar Controls: aftermarket aluminum
Headlight: Messing, of an old bicycle
Taillight: aftermarket LED
Seat: Messinger
repro boardtracker seat, home made steel subframe with nickel coating and
aftermarket shock absorber
Homemade
/ Speciale Parts and Details:
Handlebars and Battery box, steel nickel plated
Foot controls, steel, powder coated
Copper fuel and oil lines
Less is more, the bike has been as sober and clean
as possible
Paint
Colour; Copper / bronze clearcoat powdercoat
Paint: Eurolacke Powdercoatings
Painter:
Owner Mario
(nick-)Name
of the Bike:’Den Koperen Ploert’
(roughly translated it means 'The Hot Copper Bat or Stick', whereas Bat or Stick means Sun) Mario: "Because the bike gave me so much trouble during the build."
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