Bultakenstein – Original [Aborted]

Progress on Bultakenstein had been fairly mired for a while now. I incrementally lost enthusiasm for it. In an attempt to re-energize my motivation for it, I bolted up the “nice” BSA … Re-thinking BultakensteinRead more

My expansion chamber is back from my welding guy, and he did a great job on both the new section of headpipe and the hanger bracket. I bolted it up and I … Exhaust installed!Read more

I need to get serious about re-thinking the rear brake. I had been using an actuating rod, the method used by both the Pursang (frame) and GS450T (rear brake). Unfortunately, my brake … Rear brake actuationRead more

This is my over-engineered rubber-mount expansion chamber hanger, courtesy of SendCutSend and South Bend: I took a lot of time to locate the hanger bracket to the exhaust in the exact right … Rubber-mounted expansion chamber hangerRead more

I have worked through the initial issues in adapting the aftermarket Astro expansion chamber to Bultakenstein. The headpipe and main body, originally designed to be held together with springs, had been welded … Exhaust mock-upRead more

I bought an exhaust for it last August. With shipping and tax, the total cost was $240—not an inexpensive purchase. It’s an aftermarket, but I have my doubts about the seller’s claim … Expansion chamber tailoringRead more

The motor has been sitting in a crate ever since it returned from the West Coast back in late January, while I’ve been devoting my attention to The Bride. However, my friend … Engine back into the frameRead more

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