I have 2 Honda Recon's....the idle on the 2nd one I bought (both used) tends to race after it warms up. I have to keep turning it down. Also, it seems to run somewhat hotter than the other one. I was reading in the manual that a 'high-altitude' jet can be installed if you operate above 5000feet. I am in the south and way below this altitude. Is it possible I have this on my recon & if so, how do I identify it...where do I look, etc.

 

It sounds like you have a lean condition, meaning the air/ fuel mixture is getting too much air. Make sure the air filter is attached properly, look closely for tears, holes, or gaps in the boots before and after the carb, if that is not the problem, then I would suspect the jetting is at fault. I'm not sure how far you want to go into this before seeking professional services (Honda Shop). Jetting is not real hard if you are somewhat mechanically inclined.

 

The jets will have a number stamped on them. This is how you know which one you have. It requires you to take the float bowl off, and remove the jet and look at it.
I doubt you have the wrong jet in there. For high altitude the only jet that is replaced is the main jet, and the main jet has nothing to do with the idle circuit. The pilot jet controls the idle circuit.
I think the mixture screw is a bit too lean, try going ccw, on the mixture screw, this is richer. This will only effect the idle circuit, none of the other carb circuits will change. Try going 1/4 turn, and if thats not enough, then go another 1/4 turn.
Im not positive, but i think the original setting on the mixture screw, is 1 1/2 turns from lightly seated. Your final adjustment may be different due to altitude, gas, temperature and so on,
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