Ok here's the situation I bought a 95 cbr f3 about two weeks ago drained the tank the gas was a amber/beer color with black **** floating in it , but there's like a bit left that I cant get out no matter what way I hold it, should I put a little bit of gas in it and drain it again, or should I just fill her up and put some fuel stabilizer.

 

any help would be awesome

 

guy at auto zone recommended iso-heet

 

Sounds like the carbs are gonna need a good clean and sync. I'd try and get as many of the floating particles out fill it up with gas and maybe some fuel cleaner, and change the fuel filter.

 

do you think it would be a bad idea to try and crank it up

 

As long as it has oil in it, put some good fuel in see what happens.

 

Pull the petcock. It has screens that will need cleaning, anyway.
Pour about a quart of kerosene into the tank.
Swish that around to gather the sludge.
Repeat if necessary, Strain through a filter and store for parts cleaner.

Do NOT use gasoline as a solvent/rinse.
Kerosene has a much higher flashpoint, so the vapor is unlikely to ignite.
Given the use of common sense and safety rules in force.

Also, before the final rinse, blow the over-flow and vent lines clear.
That's the 2 nipples on the bottom of the tank.
Be sure the gas-cap and/or the petcock is open, before doing blowing into the tank.
Otherwise, you risk 'ballooning' the tank.

I say before final rinse, because you have to blow into the tank.
You want to have an opportunity to clear the tank, of any debris that was in the lines.

Another thing...check/replace the fuel-filter.
If it's done it's job, it's probably partially restricted.
So, say 'thanks' and replace it now. Too cheap a cost, to risk future trouble.

Hope this helps, Ern

 

If you have an air compressor you can sort of vacuum clean the crap out if you build one of these, takes about 2 mins.

https://cbrforum.com/forum/how-mecha...ressor-147572/

 

what do you mean by ballooning the tank as in some kind of internal damage

 

Ballooning is just like it sounds.
If you blow pressurized air into the tank without an outlet,
the tank will swell and round out, distorting it's shape.

Ern