Well my motor blew before.. And totally rebuilt it with an 840 kit.. Hooked everything back up, double checked to make sure everything was plugged and in the right spots.. Threw on my filter, closed the air box and stuff like it would be normally..

Soo, I attempt to start it.. The battery was a little low, so I hooked jumper cables to it and then tried.. The motor would in turn over, it wouldn’t fire.. Looked over everything again.. Everything is plugged in and together like it should be..

Tried to start it again.. It would just turn over, so gave it gas and it fired and stayed running until I let off the throttle to let it idle, after it got below 1600 rpms it cut off.. I tried that multiple times and same scenario.. Removed the tps cleaned it, removed the idle/air control valve, cleaned it.. Tried to start again, same scenario as before.. It won’t idle.. It’ll run as long as I give it throttle.. But immediately cuts off when I try to let it idle..

It has the 840 big bore kit.. 2" snorkals and dobeck tuner.. I know tuning is required but it should still run..the motor sounds good, no missing or anything.. Just won’t idle.

Any ideas? Any tips? Or anything to help figure this out before I start buying things to replace them?