
| 1974 Bultaco 360 Pursang |
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| This my personal,1974 Bultaco 360 Pursang. vin #12100423....powder coated frame...polished alloy...custom alloy tank, new seat complete, new RM rear fender and Petty front fender, Pirrelli 21" and 752 Dunlop tires...replated hardware, new stainless spokes and steel liners in the brake hubs..AMS Racing chrome bars, amal alloy levers w/gunner gasser throttle, Progressive shocks, UNI filter, new 38mm carb w/both new boots...new fork wipers and seals, 75 forks(1 inch longer) Cicle F pipe... all new barnett cables and clutch... Motor was built by Bultaco Expert Lynn Mobley from Minden Nevada with new bearings, seals, primary chain, piston and rod kit also... the motor was built by 1of the Best! This bike is not for sale at this time.. I will be racing it in the New AVDRA Western States National Series...starting here in Phoenix this feb 2008.......Dave Boydstun |
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1970 Bultaco 250cc Pursang MKIV
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What Did It Take...
| New Rod |
$4200.00 |
| New Piston |
Dunlop 752's |
| New Bearings |
Rims |
| New Seals |
Stainless Spokes |
| New Primary Chain |
Brake Plates |
| New Clutch |
Progressive Shocks |
| 32mm Amal Carb |
Alloy Levers |
| Powder Coated Frame |
AMS Bars |
| Powder Coated Accesssories |
CAD Plated Hdw |
| Gunner Gasser |
Polished Hubs |
| Matching VIN's 6803256 |
Cases |
| "Ready for the Pre-70 Class" - Was ridden by Jim Pomeroy, Tom Rapp, Steve Scott, Marcel Weirtz, & Gordy Ochs "back in the day". |

Click Images To Enlarge.
1972 AJS 250 MX
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The Story
| Sold |
This ultra low time original bike has been disassembled, its frame repainted, and seat recovered. Fenders, tank, side panels, shocks, wheels, forks, motor, etc. are all original. The motor was professionally disassembled, inspected & rebuilt w/new rings, bearings & primary chain, seals and gaskets. The bike is fitted with a 32mm Amal that shows no wear. The tires are new Michelins along with the tubes and an RK Chain. Levers are new alloy Amal style, all cables are new, wheel bearings & brakes have also been serviced. Bike had a small mechanical problem right after it was sold new and parked in 1972. My friend found it, did the work & here it is. It was his idea that the bike would find its way back into vintage racing & its ready to race today – change the grips, levers & tires back to stock and you also have a collectible bike. |
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| *This bike has the close ratio transmission & I have the stock front # plate & factory manual. |
| *This bike is classic 250 legal. |
| *It also has the swingarm that had the shock mounts moved a few inches forward. They said it was designed for taller riders, never knowing that they were getting more wheel travel also. |
| *Early AJS "Stormers" came with chrome steel rims, and later they came with Akronts. |
| *AJS's slogan was "Handles Better". |
| *A silencer has been added to make the tech guy happy. |
| * Stormers shift on the right side 1 up 3 down when new, but now they have been put back in the racing class they belong in. |

Click Images To Enlarge.
1972 CZ 400 MX "Bread Box Tank"
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What Did It Take...
| $2800.00 |
Matching #'s 981-1 . 003294 |
| New Rod, Bearings, Seals, etc |
New Tires & Tubes |
| New Paint |
New Stickers |
| New Stainless Spokes |
New Fork Seals |
| New Gas Cap |
Recharmed Bars |
| New Cables |
36mm Mikuni Carb |
| Original Rims |
Seat |
| Grips |
Stock pipe with weld on silencer |
| New Dunlop 756 |
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Click Images To Enlarge.
1963 DUCATI narrow.case 350cc Scrambler
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What Did It Take...
| Ceriani Forks |
Amal Levers |
| Progressive Shocks 14.5 |
Gunner Gasser |
| Road Race Cam |
Bridgestone 18 & Dunlop 21 Tires |
| Venolia Piston H/C 14:1 |
Alloy Sprocket |
| Head Work By W.C.B.R. |
DID Gold Chain - H/D 428 |
| 32mm Amal Carb |
Boysen FlexGrip |
| Total Loss Ignition 6v |
Renthal Grips |
| Uni Filter |
Magura Release Lever |
| NOS Rod & Lower Bearing |
Zundapp Kick Starter |
| Motor by Dave Chrone |
Maico Brake Pedal Cleet |
| Hand Made Shortened Tank 3" |
YZ.A Chain Gaurd |
| Hand Made Alloy Side Panels w/Battery Box |
Bultaco Axles / Chain Adj. |
| Hand Made Rear Sub Frame |
Custom Milled Cylinder |
| Husky Seat (New) |
Chrome VMX Bars 33" |
| Sammy Miller Pegs |
Powder Coated: Frame |
| Alloy Fenders |
Powder Coated: Hubs & Backing Plates |
| Sammy Miller Front Fender Braces |
Powder Coated: Peg Stays |
| Yamaha MX Front Hub (125) |
Powder Coated: Chain Guide |
| DID Rims 18 x 21 |
Powder Coated: Motor Plates |
| Buccanon Spokes |
Powder Coated: Brake Pedal |
| EBC Brake Shoes |
Powder Coated: Front Fender Stays |
| Wheel Bearings |
Powder Coated: Side Panels |
| New Points Cover & Gas Cap |
Was it worth it? YES!

Click Images To Enlarge.
When I decided to build a project bike, I wanted something I had not seen run competitively at the track before; something that wasn’t made for motocross – that’s why I built my 350 Duck to race Premier 500 class MX, and after 18 months we now have a finished bike.
This was no easy undertaking and with the help of Mike Green, Dave Chrone, Lynn Shoup, Bruce Kenyon, EBAY Motors, and my Chase card, we finally have a Premier Legal Bike… (I Hope).
I ran the bike it’s first time just one week before AHRMA’s opener here in Phoenix, Arizona of Feb. 2007. It was then that I discovered that the bike had the rake of Peter Fonda’s chopper. That week Bruce Kenyon said he could help me out. He re-cut the steering head and changed the angle to 28 ° and showed up with the bike late Saturday night – it looked way better – will it work?
Sunday Morning and I just barely squeak through tech (thanks Mark & Conky), and out to practice – it was slow and had the transmission of a prototype Sachs – I got through that day with leaky gas tank, sticky throttle and all…
Next we took the bike to Bike Week in Ocala, Florida March 2007. I get there and it’s pouring rain. I’m not riding my new bike in that mess… The bike then went back home with Chicago Jerry for me to ride in Texas at Diamond’s race in April – another mud bog. I did not ride, but was hired as race director for the weekend and had a great time anyway.
The next race was in So. Cal. at Comp. Edge… well here is where the s_ _ _ hit the fan and I was denied a tech sticker as a Premier bike, because I had used the rear section of a pre-70 Husky frame. So in the truck went the Ducati – no race for me… What to do?
Well after a long talk with the AHRMA rules guy Matt Hilgenberg, I was told that if I made it myself it was okay, but that I could not use any part of the Husky frame. Okay… I went home & cut all the Husky parts off and down to Davis Salvage I go to get sheet metal and some tubing. A few days later I had it all tacked up and then had it welded up again, then to the powder coater (this time in black; no silver like before.)
Now it’s July 2007 and I’m off to Mid Ohio VMD East – sure hope I can get a tech sticker!
Remember: Rules are rules. I just want to play fair. |
| - Dave Boydstun |
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| 1st Place Mid Ohio 2007 |
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