Motorcycle Repair: carb and stalling, honda f2, vacuum hoses

Question
Hi,
I have read through some of your other anwsers for my problem, which is that my bike starts and runs fine until I hit the freeway at about quarter-thottle, after about 3-5 miles it just dies. Any other time it runs great. Gas stops flowing it seems and has to use what is in the floats till it dies.

I have so far done the following:
1. cleaned the carbs
2. added a gas filter
3. changed all vacuum hoses
4. Now I am looking at cleaning the gas tank, but how is the best way?

I have a 93 Honda F2 and hopefully the steps above are correct for my problem? I also am wondering what the heck the Canister does and how to check if it is a problem?
http://houseofmotorcycles.bikebandit.com/partsbandit/oem_schematic_view.asp?sche...

The bike started this problem about 1 year ago then I parked it, had other things going on. After sitting for a year I am trying to fix it. I have since cleaned all fluids before starting this. At first I thought it was the petcock for some reason, so I brought a new one. This makes me think the tank does have something to do with it. ?

Thanks
Eric


Answer
Hi Eric,

There could be more than one problem.

The fuel tank may have some varnishing or rust contamination. Try cleaning the tank with Acetone before spending $40 on a tank liner. I've used Kreem products with good results. It's a tough process to perform. You must have patience to do the task properly. When done, you'll have 2 to 3 gallons of Muritic acid to dispose of.

Fine rust particles passes thru fuel filters and suspends with fuel in float bowls. This fine powder forms as sediment when bowls are drained.

The canister is part of the clean air requirement act (EPA equipment). You may have additional EPA equipment if your MC is a California model.

Check for vent obstructions on the fuel tank, gas cap, carbs, and petcock. I suspect the petcock is ok if new (but ya never know).

Check for intake air leak when engine is within operating temperatures.

Check cylinder compression and valve clearances. This is alot of work, but both must be within specs for the carburtors to work properly.

If you need information files on the above, send me an email ---> mshively1@woh.rr.com

Respectfully,
Mark Shively