ER5 Starting Problem

Scotia900 · L Plate Warrior Joined: 12 Oct 2024 Karma :

Hi,
My friends son has turned up with a 2005 Er5 he has been given, stood for a few years, that will only run when the starter is on and dies when its off.
First question is please, there is no oil or coolant/ temp light. bulbs are okay and the switches have a good ground/continuity. would this cause the engine not to carry on running?
A lot of the starting safety wires have been bypassed, clutch, side stand.

I am not sure what they have actually done since getting the bike, they said it ran fine but lumpy with old fuel in it (jumping it with a car battery) they removed the heated hand grips, put a new battery on it and pressure washed it! I have gone thru the connections and cleaned and dried them, I dont have a wiring diagram for this model, but it looks like the coolant light wire brown/white isn't going to the ignitor just to the yellow red kill switch, I cant see any other lose wire that should connect to the temp light,
any ideas please,
Scotia

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

The oil warning light wouldn't stop it running but is perhaps indicating some other electrical problem.

I'd have a look at the wire leading from the main fuse first off. Usually a fat white one. It's located on the starter solenoid and attaches to the 30A main fuse holder. They are very prone to corrosion.

Is the neutral light working?
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.