I have spent the last 3 hours replacing the loom on my bike. The hardest part was trying to thread part of it from one side of the bike to the other behind the top rad. Had to remove the mountings for the rad so my hand could get behind it and tape all the connectors together so they went through in one lump. After much deliberating, I decided to started on the back first cos it looked easiest. I was right - it was!
Have cleaned up the connectors and re-taped the loom with insulation tape to make it look neat and tidy. I'm very pleased with my efforts, but really wouldn't want to do it again.
And the myth is correct - you DO need small hands to work on NC30's! Everything is so tightly rammed in.
Next job: replace alternator and reg/rec. I'm not attempting the alternator. My friend is gonna help.
Should be ready for Rockingham next sunday! Yippee!!!

Good stuff Jo.
From what i have read the main plug where the alternator plugs into the loom is prone to building up resistance overheating and giving trouble, I cut the plugs off mine and soldered and shrink wrapped the wires to the main loom as it was partly melted.
Downside is if you pull the motor out you need to unsolder the connections, upside is one less thing to go wrong in what apears to be the most troublesome area of the bike.

regards
jon

Jo - If your man is going to fit those new alternator and reg/rec plugs to the harness make sure that he both crimps and solders the brass connectors on...

Pop over to mine Jo and I will give you a massage

RickOliver wrote:Jo - If your man is going to fit those new alternator and reg/rec plugs to the harness make sure that he both crimps and solders the brass connectors on...

he will. He's gonna do a proper job - I'll make sure of it! thanks for all your advice Rick. The job isn't as much of a nightmare as I thought it might be. The connectors and plugs are all self explanatory. Hardest bit is trying to get them into position.
I'm heading into my loft today to fish out the track fairing!
and Billy, It's a little far to be travelling to the midlands for a massage

jo wrote: and Billy, It's a little far to be travelling to the midlands for a massage

YAY!!!!

and i thought it was another excuse not to come along

not long to go now! you bringing the bike over sat jo?

yes Saturday. I'll give you a call at end of the week and find out when you want me to drop it round.

Glad to hear you getting through this jo. I bet this finally cures all of your electrical gremlins!!!!

I went through these headaches when I put the rvf loom in (rvf = bigger connectors!), it's not much fun. It's given me more motivation to completely strip the loom of all road wiring as a winter project.


If I was wiring an nc30, I would use all new wire/connectors these days, the original wiring perishes very easily. Not too much work for a track loom, quite a bit for a roadie.

The rvf loom is more robust (and you'll need to keep the original rvf cdi plug, not so on the nc30).