I Drained the tank and installed a new filter, and new oil, before I even tried to start it.My bike 1997 Softail Custom, has been parked inside for 10 years. After starting, the front Cylinder has excessive blowby thus feeding oil into Carb.. Compression is the same on both cylinders 121 lbs. (by my gauge) the plugs appear to be clean. What could be the problem?
Whenever a problem arises on a bike, it's best if you can supply all the info you can on what has been done to the bike , any modifications and what you have tried instead of just asking a question of "what could be the problem"? We can only help if you give us the info mentioned above and as much as you can furnish right in the beginning otherwise it becomes a question and answer thread and nothing is accomplished at all for many replies.