Skip to main content
Well, I took it to Mallory on Friday having spent most of Thursday fettling. I made up a booster battery pack and fitted a new spark plug. I discovered that the ferrule on top of the spark plug was missing so it wasn't making good contact with the cap. that explained a few issues with starting and running. It now starts much easier. At Mallory all was good. It started well and ran well. Got through noise test at 92db with a baffle. Did the first session and it went really well, it stopped well handled ok and pulled well. However when I pulled in, a puddle of oil formed underneath which was from the rear shock. I pumped the rest out and tied some cloth round it to soak any up. I then decided to to add some fuel to the tank. I think the inside of the upper portion of the tank was coated in Dust/mould / crap I don't know what, but adding fuel loosened it all up and turned it into pond water. Since then it wouldn't run for more than half a lap before stopping. 30 seconds later it would go again and get me back to the pits. Tried flushing out with fuel but I could never get it clean, had to give up at lunch and went home.
It sounds like a disaster, but I felt like it was a success because the failure were not really anything to do with the build. The cooling system worked, The starter issues seem to be history, it went well and stopped well, and I enjoyed riding it, so it looks like it will be good in the future.
Borrowed the thumbnail below, hope I don't get into trouble.

Comments

Popular posts from this blog

Engine Vibrations

Well after riding Stuarts 640 supermoto and this bike back to back, the vibration had to be coming from somewhere. The rear mount was one thing I hadn't paid too uch attention to when I started the project. Stripped it down at the weekend. I dropped the back of the engine and managed to drift one of the top hat spacers out, but the other one wasn't  having it. Decided to take engine right out to get better access. Was thinking I might have to drill it out. Made a drift from a long stainless bolt and machined the head in the lathe making the lip thinner eventually, with the lip about .5mm thick I got a good contact with the end of the bush and got the bugger out. Both the spacers were about 1mm oversize on the ID so the back of the engine had about 1mm of play.  Next job is to make some new spacers and fit them, have ordered some bar stock for that. May move the oil cooler while its apart.
Been working on cooling system now exhaust is done. Bought TDM850 Rad which has a pressure cap thinking i wouldn't need a separate expansion tank. Now the rad is mounted as high as i can get it, the filler is not the highest point on the system so will need a small expansion tank to fill from. Ordered a RS125 one that should do the job. Fitted some hoses but need some more bends to plumb the red in neatly. Its very congested and tricky round the water pump area.