Hey, thanks for letting me join up! I'm new and got a question about my 07 trx420fm. The key was left on until the battery was drained, so I charged it back up but now when I turn the key on it don't here the normal buzzing and clicking. It will spin over with no problem but fails to start. I checked for power at the plug on the fuel pump and nothing. My question is how can I test the relay? Also, could it be responsible for both the fuel pump and IACV not responding?...because there is no sounds whatever when turning the key on.