Oldfeller--FSO
Serious Thumper ModSquad
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Hobby is now "concentrated neuropany"
Posts: 12639
Fayetteville, NC
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Ok, I finished installing all the plumbing and took the bike out for the first spin in the new configuration.
Gas station first, filled the steel main tank to the top and yes indeedy it would back flush all the way to the jugs with no issues. Put in a half a jug of gas into each side and watched them nasty air bubbles back flush out of the system just as pretty as you could please. Then cut the taps all off and filled up all the jugs/tank completely and then I turned on just one jug and pulled out and rode off onto the new interstate bypass for some steady high speed testing to see if I was going to be getting enough gas at speed (no stumbling or surging) off of just one jug.
Ran like a Swiss watch ..... quiet and smooth. Nary a stumble or hiccup.
The system will run fine off of one jug just dandy. This can be from either jug as selected independently (the cut offs are even with my wallet pockets and are easy to find and manipulate while riding).
The system will run off of both jugs at the same time just fine, pulling half the gas flow from each jug while permitting the two jugs to settle out into a common equilibrium point as gravity naturally wishes them to do.
And yes, when a jug empties out and finally sucks big air with no gasoline to it and the engine finally does stumble then that is your signal to flip on the main tank which allows about a gallon and a half of gas to flow back down into each jug, thoroughly purging all the various little air pockets as it goes along, naturally.
Now you have 150+ miles more range to go find you some gas. Just fill up the jugs and tank when you get there, no need to purge anything as it is already cleaned out.
Neat thing is the fuel pump really doesn't seem to care where the gas came from nor does it care about pumping entrapped air bubbles, it just pumps the entrapped air right along with the gas into the float bowl, where gravity separation occurs naturally. Entrapped air goes up and out the bowl vent tubes, gasoline goes down into the float bowl until the float level rises up enough to shut off the flow.
There is more than enough fuel pump power to pump lots of "bubbled up gasoline" --- far more gas volume can be moved than is needed to power the engine in any case.
I am going to simply ignore purging any more fuel lines and see if this system really works out to be as trouble free as I suspect that it might indeed be.
There are no slosh sounds from the saddlebags. No noise at all, actually.
Bike's balance left to right is even and normal, the big bags only cause me mild trouble when swinging a toe over the width of the bags when mounting. I have to start the leg lift a lot earlier and hold it a lot longer as I got some real width to deal with now.
I am going to practice putting left foot on left footpeg, leaning forward and swinging right leg out and up from that relatively elevated mounting position.
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The big windshield isn't adjusted worth a crap and it was simply installed too low by the stealership. Work on the windshield starts tomorrow with getting it raised up some and get it angled some more to cut down on side and back turbulence.
Power delivery is funny, it doesn't feel like torque based power at all as each cylinder is an overbore condition 83mm by a 74.4mm stroke --- so it acts more like a performance engine at heart. This means each gear gets a quick BRRRR and you are knocking along about a hundred mph just about as quick as you can click through the gears.
There is a rev limiter on the bike, so you can get some clean top RPM cut-off sensations in each gear and you can easily know when it is time to shift should you be mucking about some in the lower gears.
I haven't found any kind of lugging action yet, this may be a benefit function of running two 400cc cylinders running off of separate offset "anti-vibration tuned" crank pins.
So, so far so good --- the Barcalounger project is working out as planned.
Remaining issues are WINDSHIELD ADJUSTMENT and SEAT TUNING.
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