Valk3

Valkyrie Interstate to Reverse Trike Conversion
Project start 5/15/2010

Conversion Complete 07/21/2010 

Pictures taken in backyard next to my garden / pond 07/08/2010

Norm Kokes - Design / Builder

Special Thanks to CJ and Kim at SportWheels of Jordan, MN (1-800-821-5975) for not only the bike but many of the fine parts.
It's the closest thing to a candy store one can imagine.

Project Scope:

My previous conversion was the ST1100 to STealth11. On that project I took a rolled ST1100 and with the aid of grinder, welder and a handful of ATV parts created the STealth11.

This project will be similar however many lessons were learned while doing the Stealth project so I will use this to my advantage. First thing is the entire front assembly will be bolted onto the frame rather than welded. This will make maintenance and repairs much easier. Also I am going to try to incorporate some storage in the front area much like the Can-Am Sypder has. I will still use ATV spindles and rotors however these will be off the 4 wheel drive units as they are heavier duty and have larger rotors. Another change will be in look, while the STealth is more aero space in design the Valk3 will be a bit more retro to fit the existing factory style.

So let's get started right here in the beginning:

Here is a gallery of pictures taken the day I picked up the Valkyrie - it's a 1999 Interstate with 102,000 miles, low for a big six. This one is perfect as there is no damage to any components except for the right valve cover. The plastic is all in good shape but the faring is gone. That's OK as I am not thrilled with the look of the factory unit so I will probably go with a clear wrap around clear faring and use a GPS for the speedo.

Removed Parts

   5/15/2010 - Initial strip down, all parts removed and these will be sorted as to what goes on ebay
    not pictured is  the seat and gas tank
    Tank will be repaired and repainted ( silver flames?) seat is factory stock which I will
    probably keep, at least for a while.
    Front wheel. fork sliders, front fender, rear wheel, audio system, and a pile of misc
    chrome pieces will be listed on eBay. The rest will be touched up and repainted.
    I think the current Emerald green and silver will be my choice.

Bent Radiator    The radiator is going to be relocated somewhere low in the new front area, unsure
    where at this point. It is bent but does not leak so I will probably reuse as is.

 

 

 

Car Tire Installed    First order of business was to remove the old MC tire and replace it with this new
    Kumho Solis 205x65x16 car tire. I had a spare wheel so it was a quick swap.
    I also cut the piggies on the rear of the mufflers so the bike will have a slightly lower
    and more mellow sound.
    I set the pressure at 26 psi which should be about right or a bit high. No balancing was
    needed as the tire spun out true, which is normally the case on new tires today.

 

Bare Front    With the front components all removed the bike is ready for the addition of struts and
    forward frame additions. The machine is blocked up in it's normal level so I can set the
    correct profile as I add the wheels and suspension. Triple trees will stay along with the
    handlebars. Looks like this is a good time to order timing belts.

 

 

Striped down and ready    Here she is all stripped down, blocked up and ready for the attack of the welder!
    After this picture was taken I degreased the entire hulk and it came up looking pretty
    sweet and new.

 



Step 1    Step 1 was to figure out where the sub frame will attach to the MC frame. The lower frame
    has a pair of projections the stick out ahead of the engine where the crash bars mount.
    This was perfect for the lower frame mount, I can bolt through the front and will also drill
    a cross bolt in later so there will be no danger of the cradle slipping out. 




Sub frame    Step 2 is the most important part of the entire operation, this frame must be square, level and
    inline with the track of the rear wheel. It must also be strong as it will hold all the suspension
    components, steering arms and radiator etc.
    Mostly measure, cross measure and a carpenter square, as is things are in great shape and
    moving right along. Metal rod down the center is used as a reference point as to where the
    steering shaft will run, this also determines where the front wheels will be located in respect
    to the sub frame.

Subframe front view    A view of the front with frame attached


     The opening in the top will be the opening to the forward storage container
    It is 15 x 20 inches and will be 8 to 12 inches deep.
    The radiator will be mounted behind the steering stem facing down and back
    Air ducts will be installed to direct air into this area and heat will go down and
    under the machine. This works very well on the Stealth as I get no heat off the
    engine or radiator.
    Still to come is truss work and bracing - it's best to get the A-arms built and installed
    along with all the steering components prior to adding the final bracing.
    Otherwise I may end up chopping out a lot of it and relocating. 

 


Top mount    A view of the top frame mounting - I used the holes and frame gusset which is normally
    used for the radiator and top crash bar mounting location.



 



                      
  
 Lower steering mount in place and tack welded. alignment seems to be about right
steering stem runs true through full lock to lock turns






A arm install
Both A-arms installed along with shock mounting. This is the most critical part of the
whole operation. Caster must be set correctly or the vehicle will not track true. To
little caster and the unit will wonder and become unstable at speed, to much caster and
the trike will be hard to steer and provide too much feedback to the rider. Can-Am runs about 6 degrees positive caster, I went with 8 degrees as more is better than not enough.
Camber is set to about 5 degrees so toe in will be 1/4 to 1/2 inch. Toe in compensates
for camber and camber reduces deflection on the steering components.

I just got the rims in so here they are just parked next to the bike so one will at least
start to get an idea on how it will all fit together. I elected to go with silver rather than
black to fit in with the current color and design scheme.






View from the rear - width should end up at 57 inches so unit will be longer than wide
or over square which will lead to very stable but I may have some limited turning radius
problems. I will try to tweak the steering to attain greater turning angles.






Next inline is to adapt the hubs to fit a standard 4 bold car rim. First thing is to insert a bushing in the center of the hub which will allow the use of a 5/8" bolt as a centering device. From this point on everything must be lined up off this bolt so the wheel will be on center and true as to not wobbling.
Center bushing is just a peace of standard 1/2" pipe machined to be a press fit into the hub them bored to 5/8" ID.
Hub and A-arms are from a Kawasaki 500 4 wheel drive ATV so they are quite sturdy and will tolerate much more force than this trike can deliver.




Adapter Plate is a piece of 1/4x5x5 aircraft aluminum plate, it's hard and very stiff but easy to work. 4 holes drilled where it will be bolted onto the hub







Next a solid piece of aluminum is used as a centering puck. It is approximately the size and shape of a hockey puck at 3" in diameter and 1" thick. A 5/8" hole is drilled through the center.






Plate is bolted in place and hub is used as centering device for drilling through the adapter plate.







Unit is assemble and a plastic arbor is turned which will be inserted into the dust seal in the spindle. Spindle uses a wide pressed in place bearing similar to standard 4x4 truck spindles. These are sealed Timken bearing however there is a dust seal at each end which this nylon arbor fits into.






Adapter almost complete. Puck in place along with center bolt and inner retainer.







Adapter dropped in place and rim will be flipped over and wheel stud bolt holes drilled using the rim holes as guides.







Studs in place. These are standard Ford Pinto 14mm studs. Everything is perfectly centered off the main bolt at this point.















 Last step is to drill in recesses in the back of the rim itself. I could have spaced the rim out however I would rather keep the bearing center as close t the outside as I can so the recesses seem like a better option.
Aluminum in this area is about 2" thick and the recesses just 5/16" deep. These recesses accommodate the mounting plate nuts as you can see in the previous view above.
Here the adapter is finished and wheel is bolted in place. Backplate fits nice and flush and the wheel spins true with no wobble or off center action.  As you can see the center bolt holds the hub in place and the entire wheel is centered at this point.




Tonight I decided to pull the subframe, finish weld all the joints and then paint it black. As long as it was off I also pulled and replaced the timing belts. Engine has 102,000 miles on it and it appears the belts were factory original. In real good shape but pretty sure factory. I replaced with a set of Gates which is the brand Honda and Napa use, This is OEM brand. Easy Job to do and only takes 15 min or so to complete.
Everything bolted back into place without problems and in the process I added grease fittings to all A-frame pivot points and welded up the tie rods.
The removal and reinstall process entails four bolts and takes only 15 minutes or so to do.

At this point it's ready for brakes and tires. Radiator is also ready to go in.











Lots of progress over the weekend - wheels mounted and pressure set to 14psi, no need to balance as they run true and when checked were factory balanced as expected. Shock bushings fabricated out of aluminum and nylon. Sway bar is a ridged 3/4" cold rolled steel bar so the only flex is in the rubber bushings, this will produce a near zero lean in the corners but still afford a good ride. Radiator is in and hoses fabricated. Brake lines and new pads in place and entire system bled and ready.
My next step is to start assembling all the original body parts, gas tank, saddlebags, trunk etc. Once everything is back on I will fab the front section to match the existing styling and colors. I am going to stay with the silver/green scheme and perhaps add some flames or design to the front cowlings.





Tank, saddlebags, trunk and all original body panels back on. Front section is ready for sheet metal as support ribbing is all welded in and braced. Radiator in and tested. I added a flared rear to the fenders to help blend in the the stock lines. Trap door added to the front where the storage box will be located. Box will be 15x15x 12.
Lights and faring also added plus all the wiring sorted out and strapped in place. I ran the engine for a bit to make sure the fan comes on which it did and she runs perfect.




Headlights are small but super bright. I rigged them so the lower is low beam and high beam is both sets on. Faring is a Memphis Shade unit, I had to fab some mounts which turned out to be easy. I used a plastic grommet and rubber washers so the shield does not crack if faring is bumped etc. Horn and front signals need to go on yet along with instrument panel. Speedometer will be a GPS.
6/12/2010
Next step is sheet metal skin and body filler, sanding and sanding and probably more sanding.

It is ready for a road test right now however our streets are all ripped up and mostly mud right now so I have to wait until they rough grade and it stops raining.

Today was the day 6/13/2010 - rain stopped and the road is dry enough for the first offical test run. Somewhat of a surprise, while the Valk is some 200lbs heavier than the Stealth it handles and steers much easier. It is also 9 inches longer and three inches narrower but turning radius is some 2 feet narrower so I can easily make a U turn over the width of a standard city street, the Stealth just barely can. Ride is soft and very comfortable. Front brakes as expected are a bit weak, the disks where rusted badly so it will take some time to get them smooth and in a good grip condition. I only took it up to 40mph or so but can see it's going to be a definite step up in ride quality. No real downside so far.


I got the horns hooked up and moved the coolant tank to the front next to the radiator - didn't make a lot of sense to have it at the back of the bike when the radiator is now way up front. Richened up the idle adjustments which made the bike purr like a kitten.
Sheet metal is next so I covered the unit with construction paper as forms for each panel, I will transfer these shapes to 24 gage sheet metal which will be folded and glued in place. No fasteners will be used, just adhesive and folded tabs on each side.
Ordered the sheet metal (4x8 sheet of 24gage) will be about a week before I get it however the unit is road ready now so I am going to start driving it, insurance was $91 per year so it's insured and legal as is. Runs great and drives perfect in every way. Pretty hard to complain about the sound of this big six. GPS is mounted so now I have a speedometer.

6/14/2010


GPS handles the speed and odometer readings. I added a aluminum plate for signal, oil and temp warning lights.
Started tank patch today - cut a metal plate to cover the dent and used body filler over the top, this way I didn't risk explosion, distortion nor further damage.

6/16/2010




6/18/2010 - first long range ride report. Seeing as it's now street legal I took off Friday for a nice 380 mile jaunt. Bike runs great, handles perfect and ride is nice and smooth. I have one bent brake rotor (right front) so it pulses a bit other than that it even stops fine. I have a couple rotors on the way so this shall be fixed soon. Mileage was a surprise as I expected 26 but ended up with 30 which is good for a trike, I get 28-30 with the stealth11. No need for premium as all the big sixes run low octane regular, this is also a plus.
On the bad side I have a hard time going anywhere, even to the video store, on a timely basis. I am constantly besieged by on lookers and question askers. Amazing I almost never get  many questions with the stealth11 but the Valk3 is a real attention getter and stops for gas usually run 30-45minutes.
At this point I have no complaints as everything is working perfectly, My wife even went for a ride expecting the wheels to fall off but was confident we would live to see another day. She doesn't like the non-lean snowmobile corning but in time one does get quite accustom to that also.
As far as cornering speed - about the same as a typical car so just slightly less than one would corner with a normal two wheeler. Rule of thumb 10mph over the suggested speeds.
One negative is the sound, while it sounds like a European sports car, it's just to loud for constant riding. Loud pipes don't save lives they just make your head buzz. I am going to add a glass pack insert to each pipe to turn the bark into a low mellow hum.
Engine is strong with lot's of torque and is certainly not a "busy" engine as it handles 65mph at just 2800 rpm and can ease down to 30mph without the need to downshift.
Engine heat is not a problem and is no worse than a stock Valkyrie, actually better as the radiator is low and points down under the engine so you can't feel any heat coming off the motor when the fan is on.
600 miles on the RT so far and it has passed the R&D stage.

On the spec side, the wheelbase is 59" wide and 69" long, U turn radius is 19 feet so it can easily negotiate a standard street. Caster is set to 10 degrees, camber 1 degree and toe in at 1/4". Unit weight is approximately 900lbs.
No power steering (no need) ridged 3/4" sway bar keeps the lean to almost zero. Front shocks are GL1500 units, very good dampening, very even ride 4.75 inches travel. Tires 175x65x14 (pressure  set to 18psi) on 6x14" four bolt universal car type mags.
Rear tire 208x65x16 Kumho Solis car tire (pressure  set to 26psi). None of the tires required any balancing.





6/27/2010
The sheet metal showed up today so with paper templates in hand I added the metalwork. Enclosure is primed black and gray. All the black parts will be painted emerald green and the gray will become the campaign silver. Some light body work and sanding will still need to be done but next on the agenda is the grill.
Things once again are moving right along.


One minor glitch showed up - once I added the storage truck up front I noticed the fan running even while on the highway. I added a couple deflector scoops on the side and bottom which did not help much. I ended up reducing the depth of the box so there is now a 5" duct below the box which directs air into the radiator. To date the fan has not come on once. I still have enough room to store tools. rain suits and misc items up front so It worked out fine.


General Specs:
1520 cc flat 6 cylinder liquid cooled, standard 5 speed transmission, wet clutch, shaft drive.
6 carbs
HP = 98.5
Torque = 96.9
2800 rpm @ 65mph

Total cost to date
Bike (salvaged)         = $3950
Parts sale                 = -$1270
Paint                        =   $64
Const materials cost =  $1240

Total  invested to date=$3984

Project basically complete 07/07/2010             

Body work all done, primed and last night I did the paint job. Color chosen was Deep Hunter Green which is a 1995 Chrysler color along with the Champagne color. Base coat / Clear coat. I added just a tad of the green to the champagne to help match it to the rest of the bike. Saddlebags and side covers are stock color so you can see the match is pretty good.
Color numbers (Napa Cross/Fire 56-51062 and 56-60116 LT Pewter. Really good paint and it laid down nicely. two med heavy base coats and three heavy clear.
I elected to finish off all trim lines with 1/8" gold pinstripe and covered the edges with black door trim.  Only thing left is the VALK3 chrome emblem wish is 13" wide and 3" tall and will be centered in the grill. I also installed an electric fuel shutoff while I had the tank off.
Day after tomorrow we leave on a trip - unsure if we are taking the Goldwing or the Valk3


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