Hi, i had vt1100 spirit 2005, stock exhaust and air filter. I had a rich condition before and it was sputtering, i bought stock jets #178 front, #185 rear as per partzilla's recommendation, new honda air filter, carb boots all original. Bought from tj the carb diaphragm and needle. The bike still in rich condition and sputters mid throttle. Full throttle is great and 1/4 throttle, but after driving for a couple of weeks, i got black carboned plugs and they fail. What to do, is the needle is different from the stock honda needle.
