- May 12, 2008
My '75 MK3 has developed problem that is driving me nuts. Starting is kind of tough, but if I give it some throttle while hitting the starter button, it eventually fires up… with a bang. The idle is a bit erratic, but after a few minutes calms down. However once I get on the road, the first several minutes are a mess. Loud backfires, lots of hesitation. Then after about 2min, mysteriously, all becomes normal for as long as I am out and about. If I let the bike cool down all the way, the problem comes back. I’ve cleaned the pilot within an inch of its life, the timing seems fine (Pazon electrics), good strong battery, plugs look normal… I am at a loss. She never leaves me stranded, but I’d really like to figure this thing out. I let her warm up for a good 5min and don’t keep the choke on for more than 2-3. Am I rushing the process too much? Any suggestions? Thanks in advance.