Motorcycle Repair: VF500 Interceptor, throttle bogging problems, worst case scenario, honda vf500

Question
I have a 1984 honda vf500 interceptor(4 k miles sat in a garage for 21 years), and i have experienced a problem with it the engine noise has gone from "normal,smooth" to "not smooth, and kinda rough, "(except at 3000+ RPM), idle has dropped from 1300(normal) to about 600(and maybe dieing but i didnt give it the chance), get up and go it gone, and i can just manage to get out of a stop light with out killing the engine from too much clutch. I thought that i was out of gas or somthign but using reserve didnt fix it, neither did adding 1.5 gallons of premium(I baby my bike). afreind said spark plugs were the best bet but he is kinda an idiot, i think that id is having fuel problems but id rather not work on one and get itout of the bike to look at and find that the other was the culprit.

Answer
Hi Jerrod.

You're right; your friend is an idiot.  At least when it comes to this.  The fuel, from sitting for so long, evaporated and left varnish in it's wake.  This has clogged up the fuel system.

The bike sat for over 20 years.  The tank needs to be resealed, the carbs need to be properly cleaned and synchronized (probably rebuilt as well) and all of the fluids should be, if they haven't already been, changed out.  Spark plugs should also be replaced, but the plugs alone will not fix the problem.

Also clean the fuel valve as well as replacing the fuel line.

To prevent major safety problems, the tires should be replaced due to the high probability of dry-rot.

There may be other engine issues that will need tending to.  Valves will need adjusting and timing will need to be done in addition to everything else.  worst case scenario, you may need an engine rebuild, but do everything else first.  remember that you are doing a restoration of what is, technically, an antique motorcycle.

Let me know what happens.
Good luck and ride safe.
FALCON