Honda Varadero Xl125 not starting

[Matthew0630]

Hey everyone , i just bought my first varadero 125 today, a 2008 plate and im chuffed. When it first arrived i went through the checks and gave her a start, it didnt fire straight away but it was cranking , after switching the kill switch on and off a few times the bike started and ran very happy , about an hour later after having cleaned the bike my mate came to see it and when trying to start it just wouldnt go , still cranking but not starting. i have checked the charge rate at the battery and it is reading 12.6 so enough to start although after a few attempts its now 12.4 so need to charge it. Ive heard the rectifier connecter on the 3 yellow wires can be shotty? how do i go about checking that , also how would i check the killswitch to see if that is bridging incorrectly and killing the bike . Ontop of that is there anything you guys would recmend to check, thanks for your time.        Matthew

[S Barker]

You don't need to be looking rectifier/regulator if it's not starting. That may be something that needs looking at later.

Was the bike being used regularly before you bought it ?

If not how long has it been sitting ?

Try some contact cleaner into the kill switch if you think that made a difference before ??

Try to start it and then remove the front spark plug. See if it's very wet (too much fuel) or no smell of petrol (not enough fuel).

Ground the spark plug on the cylinder and turn it over on the starter. Is there a spark ?

[Matthew0630]

Thanks for the reply Barker , the bike has been sat for about a week but started at once throughout so the old owner could show me it run , before that week it was used daily by the old owner with no starting problems he says. how do you mean  ground the spark plug on the cylinder and turn the starter motor , do you mean screw the spark plug back in and and try start the bike ? and check for spark. Thanks

[S Barker]

https://www.youtube.com/watch?v=69Km8qAKJ18