SOHC.co.uk Forums > CB350/400
Electric start issues
Coppertop1234:
Hi all bit stuck with diagnoses of slight problem.
Bike on trickle all time in garage.
Starts on the button no issues
Go for a run 20 40 miles perfect ride.
Go to use button to stat and starter tries once and stops
It's like a flat battery symptom
Bike kick starts first kick ride home same issue.
Mega shows Bike is charging
New battery
Earth's all cleaned
New wiring loom
Changed stator just in case
New switch gears
Last thing I can think is regulator rectifier
Open to views if anyone has had similar?
Cheers
Keith
exvalvesetdabbler:
Bit of a,long shot, if you're on oem regulator, check the wire wound resistor on the back of the regulator.
I had a battery go off last season and checked all the obvious bits that you have. Cleaned the regulator contacts and left a fragment of of paper towel between the normally closed contacts, wasn't charging at low revs and a spanner wouldn't stick to the alternator cover with ignition on.
It was fine on open roads but draining the battery pottering around town.
Since fitted a voltmeter. You need 3-4000 revs to get any meaningfull charging. Once you're up to speed or over 6000 rpm it should be up to 15v and not go over.
If you are running aftermarket ignition coils with a lower resistance and headlight on it might struggle a bit unless you ride it like you stole it.
Regards
Dave
Bryanj:
Regulator and Rectifier are seperate parts unless the bike has been fitted with an aftermarket unit
Coppertop1234:
All standard fit at moment but I am down to these as my last options.
Aftermarket do a multi 2 in 1 version to do both jobs
They are.not too dear but didn't want to change if I was missing something simple someone else had already diagnosed.
Oddjob:
Have you checked the contacts inside of the generators multi connector, they are known to corrode badly and the vibration as the engines running could mean they lose contact and don’t allow the battery to charge.
Navigation
[0] Message Index
[#] Next page
Go to full version