[Kevin Mahoney]

They do get better but..... it is incremental at most. There is noting on your bike that can't be just as good as a 2017 once you get it sorted out.

BTW the ECU problems with the 500cc were India only where they use and open loop system

[Eagle56]

Battery is reading 12.29v

[pmanaz1973]

12.9 is right for a charged battery.  Now you want to load test it. 
Turn on the ignition..but don't start the bike..turn on your lights and give it few minutes- check the voltage.  Now start your bike and check the voltage.  What are the numbers?

[Eagle56]

I went for a ride and it started running rough again
With doubts that it would get me back home again I new it wouldn't be long

Battery readings

On no lights 12.34
With lights.   11.76
With lights after a rew mins 11.70
Slow poor tick over with lights. 11.97
No lights with tick over 13.00

Is this normal?

Linked battery up to my optimisor

This reads

12.5 volts
08.7 amps

[The Old Coot]

Seems low to me so I did a little checking and here's a nice write up and a battery charge chart for you. One other thing I'd do is clean all the ground points you can find, the battery, main harness are the most important.   

http://www.totalmotorcycle.com/maintenance/battery.htm

[Carlsberg Wordsworth]

Sufficient acid level in battery I take it?

Anyway, mine had a 'cell' down but did not give the symptoms you have experienced. Only prob I had was electric start was a no go. Thank Donald Duck for a kicker lol.

I reckon something maybe dirty or blocked but I'll have to re-read the other thread.

[wildbill]

your numbers are way out -id say battery or changing system, mine as follow

battery check  12.32
motor running 14.20
headlight on and running 12.45
headlights off and running 14.25

[Eagle56]

I've had the battery on the optimisor all night I will check it out again

It will be net resting to see how it runs with an over night charge

[Eagle56]

Battery 12.8
Lights on 12.6
Fast ticker  on the throttle because it kept cutting out  13 to 14
Fast tick user with lights 12.75

[pmanaz1973]

Interesting, those number seem low for having been on the charger all night.  Kind of reaching here, but maybe a cracked cell that could give intermittent performance once the vibrations start?

Process of illumination will get you there and will likely be something simple.  Hang in there, you will figure it out.

[mattsz]

Process of illumination will get you there and will likely be something simple.

Sometimes these little auto-correct mistakes are more profound than the original statements...

[Eagle56]

Poxy Apple text

All connections have been pulled and speed with wd40
I have added an extra earth from bat to body
Next will be fault codes
Failing this drain the tank clean out the filter
Replace the coil lead and cap
Replace rectifter
Replace battery

If this don't work it's in the skip


Most parts are cheap which makes changing as a process isn't too expensive unless it's the pump these are crazy price.

[malky]

Before you go ripping things apart, get your bike (if you can) into a pitch dark shed/garage, start it up and look for any tracking from the HT lead  plug cap wiring etc. It could be a simple problem. This has worked for me in the past, it may not be the answer in your case, but it doesn't cost anything.

[pmanaz1973]

Yes, the pumps are ridiculous.  I believe there is a volume test that can confirm it's pumping the correct amount.

[malky]

Some info here.
https://www.youtube.com/watch?app=desktop&persist_app=1&v=G693XQaXfX0

Found this on the Indian RE forum.
EFI Models Including Classic 500, Thunderbird 500 Have Many Riders Reporting Malfunction Of The Fuel Pump. This Is Because The Motor In The Fuel Pump Is Damaged Due To 1. Overheating Because Of Low Fuel Level 2. Low Quality Of Fuel Resulting In Deposits - This Should Be Cleared Using A Good Fuel Injector Cleaner Additive In The Tank 3. Keeping The Bike Unused With Petrol In The Tank Causing Deposits In The Motor Techno Services In Pune Is Offering A Cheaper Alternative. Tehy Replace The Motor And Filter For Rs.5000. Check Out The Ad In OLX.IN http://Https://Www.Olx.In/Item/Royal-Enfield-500-Fuel-Pump-Affordable-Repair-Replacement-Service-ID13OyYp.Html#D50d115c7f