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Ok. Lets imagine that there is a programmable ignition that has the option to use vacuum advance to control ignition based on engine load. Vacuum advance should increase mileage when "just cruising". Maybe not much but some anyway. How would you use the engine load signal to change the...

Hello all, I recently tore down my engine because of couple of issues 1) small ends are loose and 2) steel chips in oil filter. One time the cylinder bottom gasket slipped and ended up in the engine. It then found its way to the oil filter. The filter tore apart and the chewed gasket went...

Hi guys! I'm running out of ideas. I honed cylinders last winter and also had bushings put in to the exhaust valve guides and had a valve done job. After rebuild the left cylinder smoked bad and there was fair amount oil in the left intake. So I tore it down again and put in new valve stem...

Hello all, I've been toying with the idea of using the Brembo 32mm dual piston rear caliper as the front caliper on my 1980 XS. I like the looks of the smaller 2-piston Brembo compared to the 4-piston. And I think it looks more "period correct". The stock XS single piston caliper has...

Hello all, Does anyone know what shocks have 100mm (or more) travel? I'm currently test fitting Triumph Scrambler shocks and really like the higher ride height. However, while they are 360mm in length they only have the same 80mm travel as the 330mm Hagons I have. Any ideas for longer...

Hello all, Here is my '79 (or '80, not really sure...) XS650 built for riding the back roads. It started life as a US Custom / Special model. Then it was a bobber for one summer and now has turned into a "Gravel Road Special". This is actually the third version of this bike I have built so...