My cousin has I what I presume to be a 9n by the pic. He was wondering what a rebuild costs and I told him it cost me a grand for my 51 8n...Here's his problem....Says it has low compression cause it wont start w/o pull starting it. I might add he didn't know till deep in the conversation if it was a 9/2/ or 8n. Its a front mount with I beam and 9/2 rear end. anyhow...Im not familiar with 9/2n's yet as we've only done 8n's so far. He hasn't done a compression test. He doesn't even know what the oil pressure is or if the guage works. So I told him we would stop by and check it out because if it doesn't need a rebuild theres no sense throwing all that money into it. Im not familiar with the electronics. I know bright shiney connections, fully charged battery, check the spark and carb flow out the bottom of the carb. any chance its the ignition switch? Bad wiring? I and I could be wrong but if it had low compression it wouldn't start with pulling right? Im headed up his way tomorrow to an auction to watch an 8n and would like to take anything with me I need to run some tests. Its 12v