Sumotrack

Ok, so puller shipped today, hopefully by the end of the week I will have it. But here is a pic of my PMA swap parts. Stator and regulator are from a vulcan 800 drifter, flywheel and stator mount are banshee, adapter plate is 6061 I cut on the waterjet at work. Flywheel was lightened using the specs the banshee guys use so 4.84" OD timing tabs untouched.
 

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Have you thrown a battery in to see if it fires? Being a '78 you can power the ignition pretty easily with just a battery. It'll be total loss, but you can see if it actually runs.
 
I haven't yet. I need to get a small cheap 12v battery to do that, and nicer weather or to finish the amphibious atv I have to where it is a roller so I can get the bike in the garage.
 
Not much an update but it runs. Finished installing my homebrew pma swap, new points, some gas in the float bowls and a little sprayed right in the intake and it fired on the 2nd kick.
 
I was surprised it started that easily. I'm going to pull the carbs and take them to work to throw in the big ultrasonic. They really need a rebuild but that has to wait on funds.

What really surpised me is that I didn't check the timing. I threw in the new points and gapped them, and that was it. But it was enough to let me know a rebuild isn't in the immediate future.
 
Well now the cb550 hub fits the zx6 forks and uses the zx bearings spacers and seals.
 

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Thanks guys, next step is to make a steering stem, and upper triple clamp. Stem will be first, as I have a lathe. Clamp will be in a few weeks once I start my new job as a cnc programmer.
 
Steering stem is done. Next step is to make a new upper triple to match. But that will be delayed as next weekend I will be moving a mill into my garage and will not have time to design and program the upper.
 

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Started collecting parts for a PMA conversion. Banshee stator mount got here so I used a waterjet at work to cut a mount plate out of 6061.

Have to pick up a new impact driver, in the last few moves mine vanished.
Do you have the stator and reg-rect that you need yet? I was gonna go PMA a few years back but changed my mind, so never gonna use the ones I got. I'd just like to see them go to someone who can use them and free up some shelf space. PM me if interested.
 
Do you have the stator and reg-rect that you need yet? I was gonna go PMA a few years back but changed my mind, so never gonna use the ones I got. I'd just like to see them go to someone who can use them and free up some shelf space. PM me if interested.

Thanks for the offer, but I do have all the parts.
 
Its been a while, but new pictures and slight update on the bike. Rear suspension is mounted, upper triple clamp is nearly finished, and currently I am finishing a tube bender so that I can make the seat frame.
 

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Update, upper triple needs some finish work, but is otherwise finished. Tube bender is finished, and soon I will have a seat.
 

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About 6-7 yrs ago, someone built a fuel injected, turbo charged and interccooled XS650. never made it to road status but it did run. Made video too.
 
I saw that. I'm hoping that by staying a little simpler I can get mine on the road. It helps that I have some megasquirt experience drom my spitfire. I'll probably use an old android phone in a mount to datalog once I get to that point.
 
Well I have a seat hoop now. Thanks to the DRO and some setup time I can easily make more too. It is shaped to match the champion style flat track seat.
 

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On your carbs, Rebuild kits are pretty much a waste of good money. The kits you get have mostly generic brass that might work on some other bike but not the XS650. About the only parts in the kits that work ok are the float bowl gaskets. Sometimes the float valves work.
Best to tear down, inspect, replace just what needs to be then reassemble. Depending on the air intake and exhaust you use the jetting needs to be adjusted. www.amckayltd.com/carbguide.pdf will help on that.
Another good option is the carbs from the Kawasaki EX500 Ninja. They plug right into the later bs34 carb holders and are easy to tune.
Leo
 
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