oc4 crawler won't fire

[killdozer51]

My brother just bought an oc4 at a local auction. It was running great the day of the auction. He went to pick it up the next day and it wouldn't pop or anything. Got it loaded and home, put new plugs and wires on it and still won't start. Has thick blue spark at plugs and exhaust smells like gas but plugs are dry when you pull them. Any ideas? Any help would b greatly appreciated. Thanks in advance.

James

[oliverchris]

Hi James.
If it was the Elba auction, remember those crawlers had been sitting for 15-20 years. I'm sure the carb, fuel line and tank outlet could use a good clean. If gas is 'peeing' out at the carb rhythmically then fuel pump is OK and gas supply is probably not your problem. I bet the carb needs cleaning. I know they soaked a bunch in carb cleaner. That smell you are picking up is probably the pungent smell of gas 'varnish' that's likely clogging up your carb jets.

I don't think it's the electrical side as they went through most of them beforehand and you have a healthy spark. They all run the same simple 12v system.
is this the one? I've posted photos of all of them here: https://business.facebook.com/media/set/?set=a.704041333101713.1073741881.115094158663103&type=1&l=04a8e38f48

Is this the one (see photo)?
Good luck getting her running.