Monday 21 March 2011

Lack of posts but an eventful few weeks

Dad finished the bonnet off, including repairing the front after the falling of the scales incident last year, which has ended up looking pretty damn good, especially for a temporary solution!






Meanwhile i had filled the engine with fluids and been spending many hours scratching my head trying to figure out the wiring. A couple of evenings with the wiring diagrams and i had labelled the bike loom up and was fairly happy what i was doing. So after a few more hours, some hot wiring of plugs (side stand, clutch switch etc) and lashing up of light switches (temporary stop switch) I was ready to flick the master switch. I was waiting for a big bang, but to my amazement everything lit up, the EXUP valve rotated and the throttle body butterflies cycled!! But i couldn't here the fuel pump prime, a bit of digging a round showed nothing obvious, but then i had a thought about the tilt switch. I had glued the original tilt switch up so as not to cause the engine to cut to due to G loads while cornering, but stupidly filled the switch with sealant afterwards as the casing had cracked when i took it apart. This obviously altered the impedance of the sensors and was causing the ECU to think the bike was tilted. Luckily the sealant hadn't gone off by the time i had realised so i managed to scrape it all out and clean it all up. After doing this the pump primed! Next thing we noticed was that the scavenge pump (the old blade pump) had stopped, indicating that the system was pressurised, but as there is a return from the swirl pot to tank this shouldn't happen and it should run continuously. A bit of investigation showed that the hole in the tank i had tapped into, was actually a blind hole that needed to be drilled out, idiot!! With that sorted everything looked good, and it was time to flick the start button. I had removed the plugs so as to check i was getting oil pressure, which turned out i wasn't. Cracking the oil filter while turning over sorted this, but this then showed a fairly major oil leak between the sandwich plate and the block. Removing the plate showed that the adapter threaded fitting was holding the the plate off the block. You can see the marks on the plate where the nut head was chaffing. A bit of lathe time soon sorted this out



After this  we were ready for a proper start attempt. A few attempts and the engine burst into life, and a flick of the light switch stopped it again. After restarting a few times and allowing the engine to tick over for a short time, I stripped it all out again and began to strip all the loom apart, just leaving the wires i needed


It was then time to lay it all in place and try to find homes for everything and then shorten and lengthen wires as required.

This went on for some time, and i was actually quite confident in what i was doing, apart from how to wire in the main feed from the master switch. After a long evening of sitting and scratching my head, plenty of swearing, declaration of giving up, followed by 2 ohone calls to Bob and Al i had my epiphany or Eureka moment when the penny suddenly dropped. A frenzied 15 minutes followed as i cut and joined various wires, not quite sure if i knew what i was doing or where i was going, until i had all wires connected.

The moment of truth was here, kill switch on.........dash illuminated, star button pressed.........engined turned over and burst into life, wahooooooooooo!!!! I then drove car 15 yards up my parents drive, and apart from the brakes being seized and the throttle sticking open slightly causing middle panic as i shot up the drive it felt great and we retired for the day happy!

2 comments:

  1. That sandwich plate is the standard AB 'Blade one right? Must remember that...!

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  2. Correct Tim, saw one in the back of Andys truck at Mallory.

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