Carb question lc250

[bigmac]

Hopefully this is a very simple question. I'm having a little trouble setting up my carbs so went through the process of checking all the jetting is as it is supposed to be. A couple of the manuals I have referred to talk about an air jet and list a size for it. Is this a jet of the changeable type or is it something that is fixed in the body of the carb. Is there any ways I can confirm the size or am I chasing my tail?

[Delbert]

Hi i think you will find its a fixed air passage that differs between the 250 & 350 carbs so is part of the casting if you like and cannot be changed . what problems are you having setting them up ?

[bigmac]

Thanks for the help. I'm struggling to get it running right and am convinced it's a carb problem. At tickover it misfires on the right hand pot and the same pot runs a lot colder than the left one. After leaving it running for 5 mins or so I can hold the exhaust manifold on the right but can barely touch the left. Sounds very similar to anther post I see you have commented on. I've changed the coil, new plugs, new caps, checked the timing, cleaned the carbs thoroughly, changed all the jets, float slides etc from another set of carbs I have. I can't swap the carb as the spares ones have knackered bodies. I'm going to swap the carbs over and see if the problem moves, just need to find a bit of tubing to connect the choke through.....

Have I missed anything?

[Delbert]

You mention the bit of tube to connect the choke through, have you not got it connected ?if not thats your problem , other thing to note is carb bowls are matched left and right as are throttle slides the left one having two cut outs on the top one at the front the other to the rear , hope im not teaching you to suck eggs but hope it may help
Dale

just re read i see what you mean , need long piece of tube for carb swap