Was hoping someone may be able to help me track something down. I have an 86 interceptor 500 that had been sitting for about 12 years. Here is what I have done and what it is doing. I installed new plugs, new bowl gaskets on all 4 carbs. (the insides looked great), cleaned fuel tank and have fresh fuel., new battery. So I can get her running with the full choke and then ease off the choke and keep it running. she runs great in the upper rpm range of 6k+ rpms. However, when I ease her back down to see if It will idle it bogs in the lower rips an if I don't give it more gas she'll bog right down to where she stalls. If it stalls it won't start again. I can get her to want to start with full choke and a very slight throttle. It seems like she just won't take any fuel. Any ideas??? Thanx, Mike
:welcome: to the arty2: An almost tradional-for-us, classic early post, Mike :glee: on a common topic usually top-trending just in North American spring. Fortunately, data abound in multiplicity. Naturally, a full proper carb cleaning (not just a quick peek) would be the first task on any bike sitting that long. If the engine makes unexpected noises, next check valves. Assuming you've checked your air filter for rodent mess already, it seems quite clear that you have deleterious cloggages within the idle jets; so clean those, along with the passages under the idle mix screws with spray+ compressed air, followed by a .010" steel wire deftly inserted through the #35-38 (just guessing) idle jet hole. And while you're in there, feed some carb spray through the small holes under the throttle plates. Followed by WD-40 or any oil applied to all throttle shafts as routine pm.
Also sounds like your not getting enough fuel into the carb, change your fuel filter just to be sure. Gas thats sat that long turns into varnish and gums up the works. Fuel will still go through a varnished filter but the varnish will make its way to the carb and any small opening (and there are lots) and your carb has an equivalent to a heart attack. Get some varsol and clean the fuel lines too. It wont hurt to go through the engine in small amounts, but dont over do it. It washes the oil off the cylinder walls while it burns.
