classic motorcycle forum

I recently came to own a 1949 BSA B31 without a hint of a wiring harness.  The magneto throws a hot spark, so I'd like to see if it will start up.
Question is will I damage the dynamo by running it under no load?
Thanks.

I have a 1973 Triumph Bonneville T140V that is making a crunch like noise when the clutch lever is pulled in. It does it toward the end of the lever movement.
I've replaced the clutch lever, the clutch cable and all the clutch plates. I filed the slots in the clutch basket to remove rough spots and the plates seem to slide evenly.
I've now disassembled the clutch basket again, but I think I can still feel a rough spot when I push in on the end of the actuating rod.  Not much, but I'm thinking that maybe the noise is being amplified by the assembled clutch plates, springs, etc.
Looking for ides as what's left that might be causing this noise.
Many thanks.
Ron

I've pulled the wiring loom from my 1962 Ariel Arrow and am finding all sorts of interesting mysteries.  The current on is a "what's this".  Pictured below is what I'm thinking is some sort of rectifier.  I've never seen something like this, but it doesn't have anything else I would call a rectifier.
Anybody have any opinions?
Thanks.

I have finished reassembly of my 1949 Sunbeam S7 Deluxe.
Almost.
I have one part leftover.
Does anyone recognize this?
Thanks.

I just picked up a 1962 Ariel Arrow SS project bike. A quick review tells me that I’m going to need quite a few parts to get this thing restored, as well as a paint job. It appears somewhere in its life it received a coat of brush applied latex paint.
I’m starting my quest with an ignition key.
Does anyone know any sources Arrow ignition keys?

A picture would be helpful in determining what type key I might be needing.

Thanks.

Ater getting the carbs on the 1973 Bonneville to not leak, I took it out for a ride around the block for it's inaugural shakedown.
It flunked.   

The motor starts easily and runs nicely with good acceleration.   Instruments, lights, brakes, etc. work nicely.

 Problem is it sounds like someone is tapping on the primary case with a small hammer when you're riding along.  It only does it with the clutch engaged, but the noise seems independent of engine speed or bike speed. It's also a bit irregular in frequency.  Maybe it gets louder on acceleration.

I did put the bike on a jack and run it thru the gears while it was still in the shop.  No sounds coming from the primary case at that time.

Any suggestions on where to start finding this one?

I am in the ending throes of the serious recommissioning of a 1973 Triumph T140V junkyard dog.  It's looking pretty good.

Now in trying to get it to run properly, it's not being terribly cooperative.

 Good news is that after almost 20 years of setting around and an electronic ignition, it started 2nd kick.
 Bad news is that it idles like it has a 3/4 race cam.  I've pulled alternating sparkplug wires, while it running, and it struggles and stops when the right plug is disconnected.  That points to something amiss on the left side.  It will accept throttle which leads me to the idle circuit, but the mixture screw seems to have no impact.

 I used the initial settings in the  workshop manual to get it started, but any change in those settings doesn't result in any smoothing of the idle.

 What should I do?

Thanks.

I did adjust the throttle cables so both slides move simultaneously.

I'm putting a new wiring harness into a 1973 Triumph Bonneville because somewhere in its past some goob removed most of the old one.

After much head scratching and a few false starts, it's coming together, but one thing I can't intuit out.

Each handlebar switch set has 5-6 wires that have to be hooked up to the harness.

Is that connection made INSIDE or OUTSIDE the headlight shell?


Thanks.