Subject: Re: Headlight Relays question for Greg Field
Author: jo-@lightbound.com
Date: Feb 15, 2005, 2:39 AM
Post ID: 1718392885
Brian Murphy wrote:
| Your free subscription is supported by today's sponsor: ------------------------------------------------------------------- Like music? Get a CD player on us. Click here. http://click.topica.com/caac8ucb1dfltbOvOrIa/PermissionData ------------------------------------------------------------------- Rob, When I was restoring my Eldo, I took a look at the electrical schematic, and a lot of it made no sense to me. I think that the designers only like to make incremental changes so as to keep the wiring similar over many years. The result is that you have a lot of add-ons to make the new system work with the smallest design change, but which ends up being unnecessarily complex. I especially didn't like the fact that power for the lights (headlights and turn indicators) are switched through the sub-standard stock handlebar switches. Anyway, I completely redesigned the whole system using automotive relays and fuses. I mounted all of this on a homemade circuit board containing all relays, fuses, and connectors. This is mounted behind the left side battery cover. In order to make it fit, I mounted the battery in a fore-and-aft position (rotated 90 degrees from the stock transverse position - there is room because I have K&N's air filters in place of the stock airbox). There is nothing in the headlight shell except for the headlamp connector. I'm not sure I would recommend doing this to a bike which is not disassembled, as there is a lot of wiring required (however, I did use most of a new wiring harness to start with). I have everything documented and would gladly send it to anyone who is interested (have to get it scanned first). A few postings back, there was a question about what changes should be made to improve a restoration, so I will list the mods (aside from the electrical system already described). 1. I added a second disk in the front of my '74 Eldo. An alternative would be to use a modern caliper and replace the stock master cylinder with a smaller diameter unitto increase the mechanical advantage. This would avoid the increase in unsprung weight which a second disk adds. 2. When I had the engine disassembled, I sent it to Moto International and had the block machined to take an oil filter. I replaced the stock Eldo pan with a T-3 pan, so now I have an oil filter. 3. I also added a sump spacer, which increases oil capacity and reduces crankcase pressure. 4. I put on Gilardoni 949 cc nikasil piston/cylinders. 5. Engine was assembled with a B-10 cam. Dave Richardson recommended this cam, which gives better midrange power and power at higher rpm. 6. I replaced the rear hub with an 850-T rear hub, which contains a cush drive, which is easier on the transmission. The 850-T works because (unlike a T-3) it has a drum rear brake. 7. I replaced the final drive ring/pinion gears with a set from an Ambassador. I wanted lower revs on the highway, and this gives about a 3% reduction - not great, but something. 8. I used a Tomasselli 2C throttle (as used in a T-3), which is much smoother than the stock superpratic. 9. I used progressive wound fork springs (can't remember the manufacturer), which together with the new dampers, give an extra 1/2 inch travel. 10. I put in the new-style deep (4mm) spline clutch hub together with new deep-spline clutch plates. The older 2mm deep splines sometimes cause problems when they get notched after age and/or heavy use. 11. I used stainless steel Napoleon mirrors. The right hand mirror is mounted on the right side master cylinder cylinder/brake lever housing. For the left side, I added an aluminum fitting to the clutch lever housing, to which the left side is attached. I really like these mirrors. The images are rock-solid, unlike the images using the stock set-up. Those are the mods which I think add to the usability of the bike. Brian '74 Eldo '76 T-3 in parts. '76 R90S Rob Prins wrote:
Brian Murphy '74 Eldorado '78 T-3 '76 R90S Your free subscription is supported by today's sponsor: ------------------------------------------------------------------- We have the 42 Inch Plasma TV you've been looking for!! Sony or Panasonic 42 Inch Plasma Wide Screen TV's. Put one up on your wall today! Click Below http://click.topica.com/caac8uBb1dfltbOvOrIf/ExclusiveRewards ------------------------------------------------------------------- |
last one that I did I left the eng stock