Is this the silliest looking motorcycle ever?The Suzuki front end I originally modified for Bultakenstein fits perfectly and the outer races for the new steering bearings ended up being a nice, tight … Wheel choice, and issuesRead more
Revised steering stem
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
Seat upholstery complete
I finished upholstering the seat yesterday. My stitch lines are a bit haphazard and the fit is slightly wonky in spots, but I’m not too disappointed. It’ll be a perfectly serviceable part, … Seat upholstery completeRead more
Sewing the seat cover
I’ve made some progress sewing the seat cover; the front half is done. It looks okay, but the bottom of it is a bit wonky. I’m not completely sure where I mis-measured. … Sewing the seat coverRead more
Cobbler’s sewing machine
I’m working on upholstering the seat for Bultakenstein. For the foam padding, I am using 1-1/4” thick yoga mat I bought off Amazon. I also bought some pre-made diamond-tuck quilted vinyl for … Cobbler’s sewing machineRead more
Trying parts on for size
I’m exploring exactly how many of Bultakenstein’s cast-off parts can be used on the SST frame. I don’t know what will come of this, but I am certainly having fun. The shocks … Trying parts on for sizeRead more
Exhaust design
I’ve been chatting with some Bultaco experts about an expansion chamber designed to my Alpina cylinder. The short answer is that I can’t find evidence of one. Even when going with aftermarket … Exhaust designRead more
Bearings on order
Pyramid Parts comes through again. Total shipped to the USA is going to set me back around $41 for the pair. (Not yet sure how the exact exchange rate and foreign transaction … Bearings on orderRead more
I cut the frame
I also took a cutoff wheel to the little battery box. I guess I’ve really done it now; it’s no longer original. Some avid Shin San Tong restorer probably has it out … I cut the frameRead more
Steering bearing issues
Well, I’m already facing the sort of incompatibility issues I expected to come with a ’70s Taiwanese knock-off frame.The steering head bearings aren’t standard metric, but rather 1-13/16″ OD. [1.8125″ / 46.04 … Steering bearing issuesRead more