Greetings all, great site and great source of knowledge. I have a 01 roadking classic with 140k miles in it, I bought the bike used in 2006 with 60k miles in it and up until now I havent had any major issues with it, a couple of weeks ago I noticed a whining noise coming out of the engine after doing some research on this site I found the problem to be worn cam chain tensioners. My buddy replaced them for me and rode the bike home on saturday without a problem I rode the bike on monday to work (100 miles round trip) without a problem, on tuesday it would not start, only a pop through the pipes and nothing else, I could smell gas so I knew gas was not the problem, I found no spark to the plugs, I removed the coil and checked the resistance against a new one at my local dealer and numbers were exactly the same. I checked the crank sensor and as far I can tell was working fine also checked for broken fuses and those were all fine. I took the bike back to my buddy to have him check it last saturday morning. about three hours later he called me to pick up the bike, I asked him what was wrong he said he didn't know since all he did was spray carb cleaner in the throtle body after getting some poping out of the pipes it started right up. I picked it up two hours later and rode it home (35 mile) the bike ran great, I parked the bike in the garage, I tried to turn it back on after two hours and it hesitated for a while but after I spayed some carb cleaner it turned on and idled fine for a while. on sunday morning I tried to turn it on again and it hasn't turned on since. I took it back to my buddie's place and hasn't been able to find the problem, he checked the crank and cam sensors and they seemed to be working fine. at this point the bike has no spark, the coil gets power but when the engine is cranked power to the coil is no longer there. sorry for the long post but wanted to make sure to provide as much information as possible, any suggestions on what could be causing this will be greatly appreicated.