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Discussion Starter #1 (Edited)
Hello fellas!

As some may know already, I own an old bike, a 2001 ZX6R. Well, I had some trouble with my bike at a local bikeshop. I left it there to do some carburator service and valve clearance adjustments. The bike got ready the last wednesday, so the last saturday I came there to bring it home and they told me that it's fuel cap wasn't sealing properly. Plus! I got rain water came down into the tank. They only noticed this on the friday, after some heavy showers here.

They had re-do all the carburator servicing, since the water messed everything up. They only discovered that water was getting in because the bike wouldn't start at all at the friday. When I rode the bike, it was really weird. The main issue I came into was absolutely no power at low revs (2.300 to 3.500 RPM) in 1st gear, trying to start to ride it. It wasn't like that before. So, I left it there to another inspection.

So I'm here asking the experienced fellows: since they tried to start the bike many times with water without noticing earlier, could these couple of failed startups cause any irreversible troube to the carburator or the engine head? What is the recommended procedure to do after all of this happened?

I just cant sleep anymore thinking of this... :crazy
 

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I was always under the assumption that when you get water into the engine, everything's got to come apart and be cleaned and water removed. From the gas tank, all the way through the fuel lines to the injectors/carbs. I would think the engine will eventually burn off any remaining water so I don't think the engine needs to be torn apart.
 

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They would not have needed to of redid an entire carb clean because of water getting in the tank.

Drain the carbs of the water/fuel mix
drain the tank and dry it of any water-refill with fresh uncontaminated fuel- and purge the lines and pump to insure they have no water either....

But I suspect if the cap is/has been allowing water in, you will have rust issues in the tank

They could have fouled a plug(s) with continual attempts and no start.... or maybe they fucked up the services as a whole or in part and they just blame the water as an excuse....

excuse my cynicism........ I have a hard time believing competent techs could be so stupid to make that kind of mistake without knowingly lie to you
 
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Discussion Starter #5
I thought about the long ride option, but I think it's better for them to torn apart and remove the water before doing that. Next time they call me to get my bike, I'll go for a 250 km ride on the road. Thanks guys! Now I can finally sleep!

What puzzles me now: If water get's into the compartment below the cap, if the drain hole is clogged, it will cause a flooding there, right? Since the bike is very old, I bet that hole is clogged with dust...
 

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Discussion Starter #6
News: The bike is running fast again! The main problem was the carburetor float level and a needle that was getting stuck. That's what they told me.

Well... after two hours riding I can tell that it felt like it was almost another bike to me. This is the first time I rode an old ZX6R in a good shape. Now I can tell it was worth of every day of hard work.

But, I need to replace that fuel cap as soon as possible. Seems like the water is getting into the tank through the key hole. I noticed that it is a little wet there and also has a strong smell of gasoline coming from the hole.
 

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If there's water in the tank, all you do is drain the tank and purge fuel lines/rails on a FI bike, and drain the bowls on a carbed bike, fill with fresh fuel and go on a good beat run.

People mixing up shit gas and actual water ingestion.
 

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CAP-TANK,FUEL

item: 51049-0021

qty: 1 @ $60.09


I think buying a new cap and key set is your best option....

of course you could try and save a few bucks and find a used one, but... really- brand new for $60 is the way to go
 

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News: The bike is running fast again! The main problem was the carburetor float level and a needle that was getting stuck. That's what they told me.

Well... after two hours riding I can tell that it felt like it was almost another bike to me. This is the first time I rode an old ZX6R in a good shape. Now I can tell it was worth of every day of hard work.

But, I need to replace that fuel cap as soon as possible. Seems like the water is getting into the tank through the key hole. I noticed that it is a little wet there and also has a strong smell of gasoline coming from the hole.
No fuel cap is a perfect seal.... they cannot prevent standing water from overcoming the seal. Just like a sunroof, the seal doesn't solve the problem. The drain line that keeps the water level below the height of the seal is the most important part of the system.

If you look below the cap, in the well that the neck of the tank sits in, you will see a drain line opening at the lowest point of the area. if that line is clogged, the water level will eventually creep up to where it will then seep into the fuel by going over the neck.
 
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