Lanexa Speedway
Member
On my 641, I just got the restoration done, or so I thought. Got everything back together, as it had been sitting for about 5 months. In February I had it running like a watch. Background info:
134 gasser, completely rebuilt
Rebuilt distributor with all new parts
All new Echlin parts in the ignition
12V stealth conversion with generator
Brand new harness, plug wires, every wire on the machine
TSX580 carb, rebuilt
If you aren't familiar with it, this is the machine:
http://forums.yesterdaystractors.com/viewtopic.php?t=1229444
So I crank it up to pull out for pics, and it will only run with the choke. Absolutely seems carb-related and not enough fuel. Starts very easy, runs smooth with choke. Release choke and it shuts right down. Got tons of fuel coming out the line into the sediment bowl. Clean sediment bowl. Good fuel flow into the fuel bowl.
Take the carb off, fully expecting to find the main jet clogged. Thinking this is not rocket science, I've done it a million times before. Find that the fuel had started to varnish after only 5 months.....very smelly. Nice. Clean out good, blow out all passages, put back together, no change. Did this three times now. For the record I found no ports clogged at any time, just that varnish smell of the fuel. Scratching my head at this point. There is no difference hot or cold, it just won't run without the choke on.
Any thoughts as to what I am missing? Must be something stupid in this carb. It had been running like a watch previously. I can't see where spark could be an issue.
Thanks!
Kevin
134 gasser, completely rebuilt
Rebuilt distributor with all new parts
All new Echlin parts in the ignition
12V stealth conversion with generator
Brand new harness, plug wires, every wire on the machine
TSX580 carb, rebuilt
If you aren't familiar with it, this is the machine:
http://forums.yesterdaystractors.com/viewtopic.php?t=1229444
So I crank it up to pull out for pics, and it will only run with the choke. Absolutely seems carb-related and not enough fuel. Starts very easy, runs smooth with choke. Release choke and it shuts right down. Got tons of fuel coming out the line into the sediment bowl. Clean sediment bowl. Good fuel flow into the fuel bowl.
Take the carb off, fully expecting to find the main jet clogged. Thinking this is not rocket science, I've done it a million times before. Find that the fuel had started to varnish after only 5 months.....very smelly. Nice. Clean out good, blow out all passages, put back together, no change. Did this three times now. For the record I found no ports clogged at any time, just that varnish smell of the fuel. Scratching my head at this point. There is no difference hot or cold, it just won't run without the choke on.
Any thoughts as to what I am missing? Must be something stupid in this carb. It had been running like a watch previously. I can't see where spark could be an issue.
Thanks!
Kevin