I've restarted this old motor that has been in storage for 15+ years... I've taken the carb off... What's a good product for cleaning? Are Mineral spirits ok, or should I buy a carb cleaning product? Also, can/should the fuel pump be taken apart for cleaning as well?<br /><br />When I had the motor running in a barrel, there was some "bubbling" around the gear shifter. Does this suggest that there could be water in the gearbox? I haven't changed the gear oil yet.<br /><br />Thanks for your help