1500 milages maintenance? what else should i change?

[New2GZ]

i bought my bike used. it had 30 miles when i bought it. now it has 1500 milage. so far things i have done to the bike is:
1. changing oil with Amsoil full synthetic at 1200 milage
2. new spark plug with ngk iridium.

what else i should have done to it? do i have to adjust the valve clearance? clean Air filter? etc. im not a mechanic. sometimes the bike has misfiring issue.

also, how hard is it to change the front brake pads? is it the same like cars? i have some experience with cars.

thanks

[blaine]

Yes,the valves need to be adjusted.IN 0.03-0.08mm(0.001-0.003")EX 0.08-0.13mm(0.003-0.005")Air filter should be cleaned with compressed air from the outside only.If you blow air to the inside the filter will be ruined.You should pull the plug on the bottom of the hose on the air box to drain any containment's.Make sure that the plug is reinstalled properly,or the bike will run like crap.It wouldn't hurt to put some SeaFoam or berrymans b-12 in a tank of fuel to keep the carb clean.The front brakes are typical sliding caliper disc brakes & pretty straight forward.If you don't have a manual you can download one here.viewtopic.php?f=3&t=27 (http://www.gz250bike.com/forum/viewtopic.php?f=3&t=27)
:) :cool:

[Water Warrior 2]

Are you just asking about the front brake pads for curiousity or do you think they need replacing ? I can't imagine them wearing out in such a low mileage.

[Gz Rider]

...