Cylinders 1-2 are way hotter than 3-4 after a few mins

[eric.jesse]

ok i gotta 92, i start it up and she purrs normal, i go and feel the exhaust pipes and cylinders 1-2 ( left side) or really hot but 3-4 are not near as warm, i know that theyre firing cuz engine runs really well. what is the issue? is it normal?

[snydes]

are really hot*

also no idea what the issue is. just people wouldnt have understood.

[eric_jesse]

I'm sure people here are a little more intelligent than that to recognize a typo. Damn grammar Nazis

[reelrazor]

No, it's not "normal". they should be the same or close. If you can even TOUCH 3&4 after warm up for more than a split second without a burn, those cylinders are barely firing if at all.

Are you talking temp while idling, or just after riding, or ?? And you are going by 'feel' ? Get a infrared thermometer and check them.

How do the spark plugs look?

1&2 could be very lean-causing them to be very hot. 1&2 may have a leak where the head pipes meet the head. California model? Could be that the emission passages got capped but aren't anymore on 1&2. (emissions plumbing was ported into exhaust port in head).

And, what's ..."runs really well".... are you basing that on any experience with similar size engines? We had a guy on here who had never had a real streetbike before a while back who was riding for quite a while on two cylinders (the other two cylinders barely contributing) and thought his bike was fine. When we got him straightened out he was freaking AMAZED

And, clarity in writing and speech is fairly imperative in non-face to face communication. We're trying to help from miles and time removed from you.