Hi I've changed plugs on the pittbull last year February when I purchased it and had to do them today as it fired up on 1cylinder the front was hot and back was cold pulled them out they were bit black cleaned them put back in but opposite and still shit:bang::bang::angry: so put new 1s in and she runs sweet az was popping on start up which may have been signs I needed new 1s they are champions can I get better 1s and is this normal for replacement haven't used the bike much in between winter it's parked up on smart charger I'm from nz and run it on 96 octane it's the carb model I was shown to start from cold 2 twists on the throttle pull choke up a little bit turn on ignition hold run for 3secs and start that's how I've been starting it and its been fine choke stays on for 1min then push it in and it idols sweet az till today :loony: anyhow all good now but am interested to know am I starting it properly or is that the cause of spark plugs stuffing out a Harley owner told me don't use the choke that's what can happen so far it's been 19months since I put the first new 1s in :down::roll::up:

