At idle the right side exhaust gas is cold....left side is hot. Feels like equal pressure on each side, both sides seems to be breathing equally. All four pipes right out of the engine are hot and collector under the bike is hot but 6 inches after the collector the right side pipe feels just warm, not hot like the left side. I cant for sure hear a miss when I hold the throttle at a steady 3K. Bike seems to idle just fine but I assume it could with just 3 cylinders firing. I haven't changed the plugs yet, no idea how old they are. I did check all 4 wires with a timing light to be sure there was spark on all 4 and there was. However I don't think that would tell me if a plug is bad and grounding internally. I know the obvious, change the plugs and see what happens. Also I did just remove and clean the carbs but I realized after I got them back on I made a rookie mistake! I did not remove the mix screws and shoot cleaner thru there while I had the carbs off. I did remove all the jets and blow thru those passages but without removing the mix screws realize I could have just packed some crud in there. Mix screws are all set within a quarter turn of 3 turns out. That's were they were when I got the bike. I will go thru the setting procedure in the manual but need to get it firing on all 4 first. I have not tried turning them to see if they have an effect on idle speed. My main question is why would the exhaust be hot on only one side? Is the collector not just a hollow space where gas from all 4 mixes and then goes out the mufflers? Pics of bike are here.....since everyone like pics..... http://vfrworld.com/forums/showthre...1-more-1984-VF700F-back-on-the-road-hopefully!