February 2006

Electrickery 3

I had 4 T250 at one point in the workshop and ALL of them are (were) wired up with this regulator. One bike is broken in spares now.

2 of the Ts are 69 and in original shape, no bodging electrically, they come from different parts of the country... can't be the same mechanic.

The connectors are original and both original bikes are wired EXACTLY the same (color of wires, connectors and all)...

As I said, Switzerland was used as a test market (because of license laws) and often got "specialized" models for the Swiss market.

I am pretty sure signals were an option for you guys, but here they had to be on.... of course you could remove them, but for model approval on the DMV side, it was easier for the importer to slap them on and get the approval done.

This is getting interesting... I will mock up a wiring diagram with this thing on... I am not brilliant (aprt from bulbs) with the electrics. Stay tuned.

Electrickery 2

I have 3 of these 69 T250 early models and all have the type of rectifier showed by Elbert, but there is also an extra piece of kit on all of them which looks like a regulator... similar to those on, say Yam RDs... silver box. This doesn't appear on my manual (french) or the spares fiche (alpha sport, US models then)

It wouldn't be the first time a brand did a speciality run for the Swiss market, as it is (was) often used as a test market.

Off my head: Lambretta scooters from the 50s fully decked with chrome accessories and pinstriping... elsewhere in Europe, they were butt-nakeded with drab paintwork... or jap bikes coming with indicators (signals) when these were accessories elsewhere in the world... of course everybody removed them

I'll shoot you a pic... just to be sure I'm not mind-numbed by my air leak!

Here's the set-up on my bike

Funny how things go round

I sold today a bunch of DS7 pistons I didn't need to a gent in Germany. These guy work on Adler motorcycles from the 50's… a direct link to YAm as the Adler MB250 was used as the basis of all YDS bike. No wonder the pistons fit straight into the german bike!
I'm sure they could use RDLC pistons from Wiseco if they didn't have the reed windows cut in. Read somewhere that Wiseco would do them at no extra charge. Something to check.

HEre's their little museum with NSU and Adler bikes.

Electrickery

One thing I can do to push my T250 resto forward is to solve my electric problem.

Since it idles high, I tested everything and it keeps blowing bulbs (specially the small ones) and then it's a chain reaction.... ping ping ping.

I'm getting 15.5 v at the batt, so feels like my regulator (porcupine) is at fault. The voltage doesn't go higher than 15.5, does that mean only one diode is shot?

then is it possible to insert another diode in the circuit (zenner?) so what ? and where?

This is no good

After honing these cylinders at the shop, I couldn't fit the pistons confortably… seemed like one of the jugs was tapered. Brought these to a old shop thta will properly hone them (Sunnen Hone). Turns out, one of the base cylinder flange was cracked and that probably caused the bore to fuck up.

Meanwhile back at the bank…

Funds are low… no more eBaying for me. I thought I might try to turn some of my stuff into much needed ca$h. Spent quite a bit of time riffling through my pile of YAmaha NOS stuff that came with the 1UA. This could fund most of the RD400 parts.