Illustration by Tim Conder.
I'm attempting to build the ultimate
handling chopper. It's not designed to be
a
show winning, bitchin looking, artistic
masterpiece. I'm going another direction,
attempting to build a righteous, old school,
performance, handling, and reliable machine.
No, it's not a Martin Bros job, and from
an
artistic standpoint I believe they are the
ultimate builders. I want it to fit me, handle like
a dream and last forever. We'll see.
Inside the Paughco powder coated
springer rocker.
This bike might look like shit, but it should
work perfectly. I'm endeavoring to keep it
light,
tight, narrow and right. So far so good.
We've
even decided to eliminate paint from the
equation, except for rusty metal that may need
black powder coating from Custom Powder
Coating in Dallas, and the front end was
powder coated black at the Paughco factory.
We tried to find the smallest, strangest,
most effective Custom Chrome headlight
available.
Let's jump into the shop. I was
jazzed to
receive my Rev Tech wheel order from
Custom Chrome. I needed to mock up the
frame and ship an image to Tim Conder for a
concept drawing. Conder's images
inspire
any builder. I couldn't move on it until the
Custom Chrome wheels were delivered and
mated to the Avon Venom tyres. I'm also
going
to avoid chrome and flashy stuff as much as
possible. We're running bare metal in
several
instances: Wheel rims, aluminum tank, brass
fender rails and linkage, copper hard oil lines,
and thick wall copper tubing bars. Dig this,
we're going to galvanize the frame, rear
fender
and oil bag. The XR Sportster racing tank
which is aluminum was delivered from Cyril
Huze. I'm going to leave it brushed
aluminum,
but the capacity was a minimum 1.75 gallons.
I'm mounting it high on the frame so
we'll
open the tunnel for additional fuel capacity and
weld the area shut.
I'm jumping around. Let's get
back to the
Rev Tech wheels. The spokes are stainless
with polished aluminum rims for a long
lasting approach. Even the Paughco frame
came with brushed aluminum axle plates.
We're going to leave 'em alone.
Cyril Huze
designed a new, between the heads, coil and
ignition switch mount. I ordered one without
polish or chrome. It's unfortunate that we
can't
get wheels with Stainless hubs and eliminate
chrome all together. The front is a 21 with a 18
by 5-inch rear for a 180 Avon Venom. I
don't
want a super wide tire. I'm specifically
avoiding wide tires. I think they make
choppers look like fat-assed chicks. They lose
their chopper code of agility and lightness.
This is the springer axle and spacers
available from Paughco.
With my Doherty wheel spacer kit I was
able to set up wheel spacing quick, for the
time being. It's a trick working in the
shop by
myself and I will try to explain some
operations from that perspective. We all face
shop blues from time to time. Makes me kick
back and rethink various operations when six
hands are needed and I'm limited to one
on
the part and one on the arm of the drill press.
Custom Cycle Engineering risers in place
with studs.
So alone one night I grappled with the
installation of the CCI neck bearings (I need a
JIMS tool for the races), to install the Paughco
springer front end. After a trip to a local
fastener store I was able to weave two studs
into the rear legs of the front end for traditional,
vibration dampening Custom Cycle
Engineering risers. The studs needed were
1/2 inch about 2.5 inches long with 1/2-20
threads on one end and 1/2-13 on the riser
end. The shop only had two different-length
studs and one needed additional tapping to fit.
Here's the CCE risers with 1-inch
longer,
tank clearing, stems . I don't throw away
a
goddamn thing. I had these laying around
from another bike project. Worked perfectly.
I'll
black powder them before it's all
done.
I use these risers on most of my bikes
because of the traditional, old school
appearance and the vibration element for long
runs, but they take a degree of thinking since
they shove the bars toward the rider (and often
the tank) about 2 inches. I needed to watch for
the appropriate amount of tank clearance and
ultimately needed the 1-inch longer stems.
Very high bars can be a problem with the
leverage against the flexible rubber, but with
patience, they will work fine. Since each riser
is a single unit, they will flex and pivot until
they're aligned and tightened down.
I installed low rise drag bars from
Custom Chrome/Khrome Works. I'll see
how
they fit as the seat is mounted. I ordered a
seat at a swapmeet this weekend, black with
brass buttons by West Eagle. My plan is to
bend thick-walled copper tubing and polish it
for the final bars.
Here's a Doherty front axle spacer in
place.
What a dream it is to have a kit of varying
lengths at my fingertips. Actually, a girl named
Bree would fill my dreams more appropriately,
if you know what I mean.
Now Imagine the first time I installed the
front wheel, wrestling with the slipping front
end and frame, the front wheel, the axle and
the spacers simultaneously. Fortunately my
11-year-old grandson was on hand with a
rubber mallet to assist. For the rear I used a
crate to hold the wheel and the approximate
height so I could muscle the axle and spacers
through to align it with the frame. It was time
for a Corona.
Bikernet Warning: When
mocking up your ride don't sweat the
wheel
spacers just yet. Install the wheels as close to
center as possible, but keep in mind the slop
before you install your fenders only to
discover, under final spacing, that the fender
is out of whack. Beware
The engine is currently in the hands of
S&S for a breast reduction from 103-inch to 93
smooth inches of reliable horse power.
I'm
waiting on the engine build images to share
with you.
Again the Doherty spacer kit made my
midnight working conditions shine. It comes
with a variety of spacers from over 2 inches to
1/4 inch polished aluminum jobs.
Here's the CCI chain sprocket. I like
the
old school notion, O-ring chains are reliable
and not sloppy, and I like the size that's
not an
obstacle to view the wheel.
Hold on, I'm slipping the clutch
again. Next
I mounted the Rev Tech rear wheel with
another Avon Venom within the Paughco
frame. Unfortunately my Kraft Tech Fender is
9-inches wide and the tire on the 5-inch wide
rim runs only 7-inches. I need about an 8-inch
wide fender. I'm waiting for the shipment
to
arrive.
I bolted on the Joker controls and the
Custom Chrome kick stand to easy parking if
the bikes was removed from the lift.
The stock XR Sportster racing tank in
place.
Then I moved onto the tank. I needed to
create a couple of bungs for rubber mounting
the rear of the tank and tap them for 1/4-20
threads. It was the first time I used our
new/old lathe. This is all a new learning
experience at the new Bikernet Headquarters.
I grabbed a lathe that was rusting in Japanese
Jay's backyard. He wasn't using it
and I
wanted one to cut wheel spacers. I reworked
and cleaned the lathe until it was operational
then the Doherty crew created a wheel spacer
kit? Ah, but the lathe has a myriad of uses, like
cutting bungs from a chunk of aluminum.
Worked great.
Then I tapped them using the lathe chuck.
I discovered that the tank petcock bung
needed moving to the rear, since the tank was
mounted at an angle. I cut it out with a die
grinder and returned to the lathe to machine
off the welds.
Here's the new petcock bung hole
drilled at
the rear of the tank for maximum capacity.
Next I need to learn how to use my
new/real old, milling machine. My dad was a
machinist most of his life and ultimately an
engineer in the oil well industry. As a teenager
I worked in machine shops and picked up
equipment experience between smoking
joints. I swear I learned something.
I'm not going to attempt to weld the
tank.
Just up the street is a 40-year pro, but I need
to have all the parts and pieces ready to
weld.
Let's see, what else. I dug through
our
parts bins and found the exact bracket I
needed to mount the Kraft Tech oil bag. I need
to cut off the existing coil and oil bag brackets
and make a new front mount.
Wait a minute I'm slipping again. I
dug
through my bracket drawers and pulled a
couple of old Jammer brackets 1/4-inch thick. I
drilled 1/2-inch holes for the rubber mount
grommets from Cyril Huze. I bolted them in
place.
I made sure to bevel the holes slightly to
prevent a fit with the rubber and insure the
steel wouldn't cut the soft material.
Next, I carefully measured the backbone
tubing of the frame and figured the
dimensions of the tabs and carefully marked
and cut them, then beveled the edges for
strong welds.
Here's the tabs ready to rock.
I used a level on the frame, ultimately on
the front motor mount then on the top of the
tank to make sure the tank was level with the
frame.
At 1:00 a.m. I turned in, but just before I
tacked the tabs to the frame and used my air
hose to cool the tabs, so I didn't smoke
the
rubber sleeves. I discovered in the morning
light that the tank wasn't in the center for
the
frame rail, and it needed to be dropped
1/8-inch in the front.
The next day under a sober sky, I refit the
tank, tacked and MIG welded the tabs. Once
the Bill Hall, pro-welder, welds my tank bungs
in place and the tunnel is capped, I can make
the final rear tabs and mount the tank
semi-permanently. Is that possible?
I'm not sure about this operation. I
drilled
several holes in the tunnel for gas to flow in
and out. I hope it's cool and enough flow.
Any
suggestions? I didn't cut the tunnel
completely
out for structual reasons. It's an
aluminum
tank on a rigid frame. I don't want it to
crack
between here and Sturgis.
After positioning the bungs and petcock
several times, I decided to run the Petcock
back as far as possible for the most gas
capacity. Then I positioned the round tab
forward enough to clear the petcock.
Next, I will mount the Kraft Tech Oil bag,
the rear fender and sprung seat mechanism.
I'm also dealing with the rear drive. The
frame
was set up for belt, but more and more I like
the chain notion.
The JIMS machine tranny is set up for
4-speed applications with 6-speed gears.
First, I ordered the wrong Custom Chrome
tranny plate, then I was twisted about the
sprocket vs. belt pulley needed to drive the
bastard. I dug through old parts bins until I
found gears, since it looked like a gear-driven
job. Then the sprocket didn't fit. I'm
still trying
to figure it out.
I'm going to meet with Jim of JIMS in
the
next couple of days and get to the bottom of it.
Although the frame is set up for a belt, that
means if I run a chain, I'll have plenty of
alignment flexibility. Hang on for my next
report.
--Bandit
Doherty Machine
1030 Sandretto Dr Unit L
Prescott, AZ 86305
928-541-7744
mailto:Dohertymachine@aol.com
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