New Con rods and GPZ pistons

Bernd on  xs400.net in Germany have found that XJR1300 conrods fit the XS crank.

He also used GPZ900 standard pistons, whilst  at 72.5mm, still ok to bore out the barrel to that size.

 the bearing shells of the XJR.
XS .............. => XJR
1L9-11656-00 => 36Y-11656-00
1L9-11656-10 => 36Y-11656-10
1L9-11656-20 => 36Y-11656-20
1L9-11656-30 => 36Y-11656-30

The pistons need to be modified on a milling machine and new valve cut outs made for the XS valves

 The only issue is that they are 1mm too high.

SU carb

Today I started collecting parts for the build.

SU 1 1/4" H2 rebuilt

this mounts at an angle which hopefully will pair up with the angle of the charger.

Need to think about pipe work and mounting the blower.

For this I have made some mounting templates out of card and when I get the tracker MOT'd (as its due) and the FZ600 back up and running, I'll take the bike off the road.

supercharging the XS

this arrived today

Its an Aisin AMR300 Supercharger which I'm fitting to the tracker.

Going to take all year to do, but I think it will be awesome

XJR1300 conrods, weld up the oil hole for the starter chain and fit a 4 rib serpentine pulley in place of the original sprocket.

need to work out the ratio (leaning on 1:1)
Its a suck through system so can't have an intercooler, pop off valve needed for backfires

there's one fitted to an SR500 for inspiration

tracker still going strong

Just a little update in that the tracker is still going strong and i have a few updates for 2016.

as Rudolf for Roughleys toy run

battery ..again

well the new battery died because I over charged it, its supposed not to discharge but it went down to 8 volts and as a battery, 8v is not enough.

So I went back to the alarm battery system and the bike starts a treat.  For £7 I'm not fussing if it goes again I'll just buy a new one :)

updated the airfilter inlets as the old air filter tubes went hard and I couldn't get them on the carbs.

I am running a crank breather tube into an old deodorant bottle as a catch bottle.

Its Arrived!

well the Battery has finally arrived.
 The first one got stolen and the American company sent another, premium class and it arrived in 4 days.

had to do a little rewire and a relocation. I will post pictures later.

This Lithium battery can only take 14.4 volts max and when I tested the bike with a spare battery it went to 15 volts so I have bought another reg/rec to hopefully get this down to the 14.4 volts.

Another new battery

well I've given up on the alarm battery. the 2nd one went today. It didn't leave me stranded but I couldn't go out to play today and that makes me MAD

anyway after hours of searching I came across 2 US sites;

motydesign and Ballistic EVO2 50 4-Cell Lithium Battery


http://www.motydesign.com/product.ph...4-cell-battery

http://www.ebay.com/itm/320960389162...witem=&vxp=mtr

I went for the Ballistic as its orange and suits the tracker colours

both will fit inside the seat area and the Motydesign one would prob be easier to fit, but who said anything about looks being easy?

I got a meet coming up in 3 weeks, lets hope it arrives before then