My suzuki gz marauder won't go down into first or neutral..kick all way down but starts off in second gear..keep stalling at busy junctions.

Sounds like a neutral start switch is bad. Here is a source for the part. Suzuki 2004 VZ1600 VZ 1600 MARAUDER 8 9 KICKSTAND WITH SWITCH SPRING eBay

Check around to see if you can find one locally.

the kick stand safety switch could be bad.check it out

check out your side stand safety switch

Many of the Suzuki's including Boulevard, Intruder and others have cut off switches in the kick stand. As long as the stand is down the engine will die when shifted into neutral.

Check the gear lever isnt stiff or seized.

The most likely cause is the clutch plates have worn out. You have to consider that these 125s are usually ridden by beginners, this means that they will be revved out in ,at least, the first 3 gears.

Won't start 2008 Suzuki Marauder GZ125. The starter switch does not work every time when it doesn't I switch off give it a few seconds try again sometimes it works others it doesn't I try waggling steering sometimes that helps.

Sounds like it is running very lean. Look for a plugged filter at the tank fuel tap or maybe an 'inline' filter. Make sure the air filter and the exhaust system are not plugged. Did you tear the carburetor down and blow out all passages with compressed air when you cleaned it? Don't blow into the fuel inlet with compressed air as it will crush a metal float. (don't ask how I know this!) Hope this helps!

does this only happen when your side stand is down?? try it with the side stand up it had a safety cut off..