Φ Bultakenstein [Aborted]

Bultakenstein’s motor has returned from its West Coast spa vacation, looking very healthy. True to the spirit of the bike, it’s a mix of parts. The cylinder I sent to Ralph wouldn’t … Engine and frame color ideasRead more

I got a call from Ralph Weidling at Bultaco Parts US. The salvage Model 143 Frontera motor I sent him has been completely rebuilt, and has great compression. It’s mostly a stock … Bultakenstein’s motor is built!Read more

Ralph Weidling just called to say he’s ready to start rebuilding Bultakenstein’s engine. I sent it to him back in mid-June, but I was in line behind couple of full restorations. We … Engine set for rebuildRead more

Today marks the 10-year anniversary of the first post I wrote about Bultakenstein. At the time, I called it “Project X.” The project is still officially ongoing, though I haven’t touched Bultakenstein … Ten Years On…Read more

I bought a speedometer from a Suzuki GZ250 and set it on Bultakenstein to see how it looks. It’s a bit on the large side, but the angle and placement are nice. … Speedometer mock-upRead more

I rolled Bultakenstein outside for some progress shots, to keep me motivated. Chassis fabrication is basically complete; now it’s on to engine work, intake, and exhaust. There have been a lot of … Progress photosRead more

I got the front end back from my local welder, all nicely TIG’d up. I started working on a new steering stop adapter to fit the revised steering stem setup. Once the … Revised steering completeRead more

The revised steering stem setup is coming along nicely. The GS500E steering stem is a snug slip fit into the GS650L lower triple clamp. I mocked everything up, and I just needed … Steering stem progressRead more

I mounted the seat this morning. Nothing very high tech, but still a minor milestone. I was about to bend some stock steel bar into brackets to hold the seat, when a … Seat mounting clampsRead more

Examining the GS500 steering steam I had purchased for the Aermacchi-Ducati Special. I discovered that the GS steering stem is the proper length and diameter to fit the Bultaco frame without turning … Revised steering stemRead more