been away from the cb750 heap/project for some time, and finally got back to it today. after finally sorting out coils that had faulty caps on 1/4 and broken wires on 2/3, i set about checking fuel delivery. i had cleaned the carbs (paying special attention to the idle circuits), cleaned the tank, cleaned the sock filter, replaced fuel lines (had broken down rubber bits inside), and added fresh fuel.
she started on a couple of cylinders, then all four, then died, then ran great, then burbled to a stop. yoiks! where to start? i looked at my new fuel lines and they had some "sags" in them but all were lower than the petcock. couldn't be that, right?
but then i sort of remember TT saying "no fuel line sags, you little creep" or something like that so i routed the fuel lines a little differently/better/flatter and zoom started right up! engine (44,xxxmiles) is strong as hell everywhere. starts immediately, shifts crisply, idles at 900rpms, no warm-up time, all pipes evenly hot. i think think this is the best runner i've had.
this bike has very nice jardine turn-outs, good fenders, a very nice period aftermarket dual seat and a great tank. huge potential, will keep me busy all winter for sure.
all electrics, including the charging system, work fine. speedo/tacho are nice and steady. head bearings feel nice; swingarm bushings, brakes, forks, rims/spokes and shocks are toast. needs paint.
i think i'm gonna build a cruiser: lowered, mini-apes, grab rail/sissy bar, ma and pa seat, maybe a 16inch rear w/extended forks. should be fun! later,
bobp
