Motorcycle Repair: 1983 suzuki gs450l, high octane fuel, spare tank

Question
Hello, I have a gs450l that has been in storage for 15 years. I would like to get it on the road again and I'm wondering what I should do after such a long time of inactivity. There was gas left in the tank for the first 5 years and now the inside seems to be rusted. Must I change the tank? thanx

Answer
Bryan,
 If you can find a spare tank, that would be best.  Otherwise, there is a kit sold, a 2-part epoxy that will coat the inside of the tank and harden creating a barrier.  You can get it at a good cycle shop.  Besides doing a basic inspection of tires, chain, oil, etc. you'll need to most probably clean the carburators if any fuel was left in them as well as change all fuel hoses.  Be sure to add an inline fuel filter to the fuel delivery hoses, this will catch any remaining rust and debris.  Before cleaning the carbs though, refill new or cured tank w/ fresh high octane fuel and try to start.  If it won't start, check for spark.  If there is no spark you will need to test the ignition sys. (another letter).  If so you will have to clean and adjust the carbs.(I highly reccomend you purchase a good aftermarket manual to guide you through this)  Here is some basic info I've given others on the process:

Disassemble, clean all jets and orifaces with solvent and COMPRESSED AIR ONLY, use NO wire or picks to clean holes/airways. Rebuild carbs with new gaskets and make sure your floats are set correctly. . Do not overlook the float level, be very sure you are not starving for fuel. In relation make sure fuel flow is unobstructed and use a good in-line fuel filter from the tank to the carb. Even tiny particles in the fuel can get logged in critical areas and cause havoc.

Hope this helps,
Mike