Author Topic: petcock leaking again  (Read 943 times)

Offline Cholla

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Re: petcock leaking again
« Reply #15 on: May 07, 2019, 12:41:55 pm »
So....you don't believe shutting off the fuel prevents the problem?
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Offline MAN OF BLUES

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Re: petcock leaking again
« Reply #16 on: May 07, 2019, 07:03:33 pm »
So....you don't believe shutting off the fuel prevents the problem?

DID YOU READ POST #12 ?

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Offline VirginiaJim

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Re: petcock leaking again
« Reply #17 on: May 08, 2019, 06:13:11 am »
Hmmm so locked doesn't mean locked? Must be new English.

Overflow  tubes do not fix the underlying problem. The fuel spills onto the floor. Hopefully you don't turn on the light in the garage and cause an explosion. Stop the flow of fuel with a shutoff valve and guess what? No more hydrolock and no boom from spilled fuel.

The needle/seats and the petcock are poor designs. You would think Kaw would have done something to solve it.


They did fix it.  It's called fuel injection....LOL.  Course you probably have other worries with that but hydrolock usually isn't one of them.
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Offline Cholla

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Re: petcock leaking again
« Reply #18 on: May 09, 2019, 09:59:19 am »
DID YOU READ POST #12 ?

 :deadhorse: :deadhorse: :deadhorse: :deadhorse: :nuts: :hitfan:

Yes I did. Did you answer the question or ask another?
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Offline Cholla

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Re: petcock leaking again
« Reply #19 on: May 09, 2019, 09:59:56 am »

They did fix it.  It's called fuel injection....LOL.  Course you probably have other worries with that but hydrolock usually isn't one of them.

Their fix was to replace the whole bike!
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Offline Daytona_Mike

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Re: petcock leaking again
« Reply #20 on: May 09, 2019, 11:38:03 am »
There is ONLY one way to prevent hydrolock and it is NOT with any petcock or filter or fancy solenoids.
The ONLY way to prevent hydrolock is to install overflow tubes. 
Do not play around with this issue. Hydrolock is serious.  Get  over flow tubes.
 They are the simplest and best and only way to prevent hydrolock.

Overflow tubes are also the ONLY way that lets you monitor that your float valves are working.  The second a tiny piece or dirt gets in the needles or any of  the floats sticks you will know immediately and which carb it is too and then you can take immediate action to remedy the problem. ONLY over flow tubes will do that. They are not for just preventing Hydrolock.
  They can tell you why your fuel economy dropped.
If you still have fuel in the tank, you are not lost yet
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Offline MAN OF BLUES

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Re: petcock leaking again
« Reply #21 on: May 09, 2019, 06:39:34 pm »
Yes I did. Did you answer the question or ask another?

YES, I did, and the answer was NO, it does NOT....
what part about the other 3 float bowls being full,)or even over full, if the floats are mal adjusted) and possibly draining back by gravity,  when the bike is on the SIDE stand, into the lowest carb, over flowing it if it has a bad float needle..... DIDN'T you comprehend?

I realize it might be a technical issue, and I deal with that... maybe understanding the systems at play, instead of commentary about how bad they were for decades....("Stop the flow of fuel with a shutoff valve and guess what? No more hydrolock and no boom from spilled fuel. The needle/seats and the petcock are poor designs. You would think Kaw would have done something to solve it.")  If you spent as much time in this area, as you have in the Arena...(if Arena posts were countable, you probably would outnumber me 4x on post count totals..., but they don't count...) and doing maintenance on these bikes, you might get a better feel for it.

You could even pull the fuel line off the petcock, and have a bike Hydrolok, maybe even easier and faster... when #1 carb's float needle is bad...


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Offline Cholla

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Re: petcock leaking again
« Reply #22 on: May 13, 2019, 09:42:44 am »
Hmm...no fuel going to the carbs yet the fuel will flow to the carbs.

That's a new twist on the laws of physics!
Tell me how that can happen.
Please. The overflow tubes dont stop the needle/seat from leaking. It can still flow into tbe cylinder and onto the floor waiting to be ignited.

I bet no one has removed their petcocks since they are not needed, right?
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Offline Stasch

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Re: petcock leaking again
« Reply #23 on: May 13, 2019, 10:13:02 am »
Quote
Hmm...no fuel going to the carbs yet the fuel will flow to the carbs.

My $.02 (worth exactly that).  The over flow tubes only prevent fuel from flowing into a cylinder and the potential hydrolock.

I understand what was said to mean that when the bike is on its side stand, AND bowl 1 has leaky float needle, some of contents from carbs 2, 3 and 4 can make it past bowl 1's leaky float needle because fluid seeks the lowest level. 

This would raise the level of bowl 1 (this is sounding like Dr. Suess's Thing 1 and Thing 2) to the point where the excess fuel has to go somewhere - either cylinder 1 or an the overflow tube (if present). 

This could occur without additional fuel continuing into the scenario when the fuel line has been disconnected.

The risk of fuel on the floor is an eventuality with or without overflow tubes with a full fuel tank connected.

Once the cylinder and / or crankcase is full of fuel, its going to go out the airbox, just takes a little longer.

(edit for spelling)
« Last Edit: May 13, 2019, 03:09:15 pm by Stasch »
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Offline jimbobob

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Re: petcock leaking again
« Reply #24 on: May 13, 2019, 10:59:25 am »
Stasch and MOB provided and excellent explanation. If you understand how the carb system works, what they say makes sense. With the bike level and bowls full, then being put on side stand could cause a hydrolock with no overflow tubes and no additional gas from the tank.

Offline MAN OF BLUES

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Re: petcock leaking again
« Reply #25 on: May 13, 2019, 05:34:21 pm »
thanks, glad you grasped the explanation, I only repeated it again, so Cholla could attempt to "grasp" it; of course, I never could defy the laws of physics, especially "gravity" (and it's direct opposite... "Levity...")   :rotflmao: :rotflmao: :rotflmao: :rotflmao: :goodpost:   or it's effect on liquids seeking their own 'level'...



tilt the rack, and the level in the lowside 'amazingly rises'..... :yikes:

https://brainly.in/question/5309087

but, I'm sure if its on the net, it's true....

enjoy...
https://en.m.wikipedia.org/wiki/List_of_gravity_hills

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