Well it maybe an issue but im wondering how bright the spark should be when pulling the sled over with the plugs out? Its hard to see in daylight but if i turn out the lights i can see what looks like a decent spark, just finished draining the crankcase... cylinders and pipes of fuel and tryin to fire it back up after the temp sensor went and ran like a bag for a bit. Now its being a bag to start up again even with new plugs i dialed the air screw in and then back out 1.5 turns and the other white one out 3/4 turn but the pig wont fire lol.. i checked the carbs they are all clean and floats appear to be working normally i flipped them over and blew air into the fuel line end and it wouldnt go through til i flipped them back over to right side up. i didnt change anything there but im getting frustrated now. Prob more of tired of pulling it over i think. I just wanted to see if it might be a weak spark issue.