400/4 build. Paused due to other commitments. But starting up again

[ComfySofa]

Upper engine mount - is that the triangle connector mounts?

[Sesman]

Yes, negative battery lead connection point.

[McCabe-Thiele (Ted)]

I put in a couple of extra hidden extra earthing points - don't ask me where as I have forgotten but it seemed a good idea at the time.

[ComfySofa]

Yes, negative battery lead connection point.

Just to quote (so run a lead the length of the bike from the battery to the front triangle engine mounts)?

[Oddjob]

No it's the rear upper engine mount, it has a small triangular plate, a bent shaped one, the fronts are straight.. The battery earth lead goes on the end of the bolt coming through the engine before the spring washer and nut. I'd remove the paint from the frame where the other 2 bolts holding then plate on connect to the plate and from the small area on the plate that the earth lead covers so it has bare metal underneath.

[ComfySofa]

Brilliant - glad i asked now (pics will be coming tomorrow when i get in the garage)! Many thanks.

[McCabe-Thiele (Ted)]

My cable was already bent into the shape shown but this is where it goes I believe - I made sure the inside surface against the engine made contact on both sides of the fram if you get my drift.


PXL_20221105_110348178 by Macabe Thiele, on Flickr

[ComfySofa]

Wow.....ive not even got that bit on there yet!!! ( i was looking at that triangular bit last week) thinking where the #@%$ does that bit go!! Cheers....and i will add that ive got a few more bits like that as well (ill take some pics of them tomorrow)

[Oddjob]

Supposed to point upward Ted and the cable should be straight not all curled up like that. I'm currently making some new ones for my bikes, red for the positive lead to the starter solenoid and black for the earth lead and the starter motor cable.

You can always trap the earth point between the engine bracket and the engine, so behind the bracket not in front, that way it makes a really good contact with the engine casing.

[ComfySofa]

Great - thanks very much (all good stuff) i will say, that you lot have been a great help....one of the things i was most apprehensive about was the re-assembly after its been apart for so long....

[Oddjob]

Welcome, I doubt you have any questions that haven't been asked and answered before. Vast wealth of knowledge on the site.

[ComfySofa]

There'll be a shit load of MUnit based electrical ones coming!!

[McCabe-Thiele (Ted)]

Supposed to point upward Ted and the cable should be straight not all curled up like that. I'm currently making some new ones for my bikes, red for the positive lead to the starter solenoid and black for the earth lead and the starter motor cable.

You can always trap the earth point between the engine bracket and the engine, so behind the bracket not in front, that way it makes a really good contact with the engine casing.

I know Ken but I did not want to risk messing up the cable end by straightening it - when I bought the bike it was attached to the rectifier mounting bolt!

[ComfySofa]

Ive got everything that came off the bike (well - i think so!) im guessing there is an original earthing strap or is it best to go with fresh wire?

[Bryanj]

The original bracket when bought as a spare has no paint either side where the hole is to ensure good contact to engine and cable, as to new or old check for corossion and looseness at the ends if good use it