Clark mig welder won't arc - Clarke Power Products Clarke 130EN Wirefeed Welder - 110 Volts, 130 Amps, Model# WE6523

SOURCE: mig welder powers up but only clicks when trigger is squeezed

1] Remove the power cable from the power. (socket on the wall) remove the top cover there should be a fuse located on the wiring panel.
2] perform all your house keping- like, all plugs and socket are tight, the correct contact tip with the the right wire size, roller/s are also the correct ones for the wire size and are turning if they are turning but not feeding the wire, then, the rollers need to be tightend , get back to us.

SOURCE: The wire at the tip of the mig gun strikes an arc

Sounds like the trigger is getting worn out.

SOURCE: SIP turbo 150 mig welder instructions wanted

for welding cars or similar thickness steel use it on number1 setting speed 6-7 and practise max and min should be used when you want a bit more power A gose onto number 2 and then 3 these are amp settings and are for thickness of steel to be weled your welder can weld up to 8mm of plate steel on setting 3 max i use 0.9mm gasless flux cored wire great for working out doors the wind tends to blow gas away on standard wire yours is easly converted to gasless as so was mine

SOURCE: i have a century 120v 90amp mig welder model

It could be the ground clamp disconnected.
the polarity could be set incorrectly.

SOURCE: where do i get clark mig welder parts 130 en

These guys claim to have parts. I too am looking. My Guess is that the welder itself is probably a generic one that gets many brands applied to it. Often is the case with tools these days.
http://www.htpweld.com/