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General Category >> Rubber Side Down! >> Petcock/Carb vacuum line - size
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Message started by stewmills on 10/14/15 at 06:33:07

Title: Petcock/Carb vacuum line - size
Post by stewmills on 10/14/15 at 06:33:07

I need to replace mine to troubleshoot some rough running issues. Isn't bad as far as I know, but I figured what the heck, probably can't hurt. Is the line a standard size that I can get by the foot at the local auto parts store?= of do I have to have the special Suzuki flavor?

Sorry if this is a duplicate post. I thought I posted this question last night but didn't see it here this morning....and I am tired and my brain is not working wll yet tis morning.

Title: Re: Petcock/Carb vacuum line - size
Post by justin_o_guy2 on 10/14/15 at 06:40:35

Save your time. Put a Raptor on.

Title: Re: Petcock/Carb vacuum line - size
Post by Matt_greatlakesstate on 10/14/15 at 07:33:11

Raptor is 21$ on amazon. I replaced the vacuum petcock at just the hint of it acting up. Didn't even have to take the tank off[ch128077]

Title: Re: Petcock/Carb vacuum line - size
Post by justin_o_guy2 on 10/14/15 at 07:57:47

For just under thirty you can carry the stock petcock into a real brick and mortar store and Know that you are getting the right part.

Title: Re: Petcock/Carb vacuum line - size
Post by Drestakil on 10/15/15 at 17:29:56

505746544E4A4F4F50230 wrote:

I'm pretty sure it's a standard size. Take the old hose in and they'll tell you. Or if it's Autozone, you can ride your bike there and they'll come outside and look at it.

Title: Re: Petcock/Carb vacuum line - size
Post by justin_o_guy2 on 10/15/15 at 17:52:14

484F5E4C56525757483B0 wrote:

So, the bikes running weird, and you have no indicators that the vacuum line is bad, and, the petcock is notorious for causing weird problems. You can go to the Tech section and test the petcock.
Or, just try putting it on Prime.
Pull the fuel line off of the carb, put it on Prime, see if you have fuel flow.
If so, switch it to Run, the petcock should stop letting fuel through.
Then, if you start it, the gas should come out again. That's probably not recommended. Only someone who knows how to be careful with a running engine AND a fuel leak,,, so, if you do it and burn it down, I didn't say do it. I Did discover how far it would go with the fuel line disconnected accidentally. The bowl on the carb holds enough gas to get it fired up, helmet and gloves on, up the drive, and down to the stop sign.

When did it start acting up? I mean, have you worked on it, or was it right after getting gas, anything you can blame it on... And, if it's a few years old, test or replace the petcock.

Title: Re: Petcock/Carb vacuum line - size
Post by stewmills on 10/15/15 at 20:37:42

i have tested the petcock and pretty sure that is the culprit, but while i am tackling that i want to go ahead and replace the vacuum line just because. i want the stock and not the raptor because i dont want to have to worry about turning it on and off. i like easy. crank up, ride.

Title: Re: Petcock/Carb vacuum line - size
Post by justin_o_guy2 on 10/15/15 at 20:46:50

Understood. Some people just don't want to have to mess with the details, like letting a turbo cool down before shut down,
As long as the carb is healthy, the petcock can be on.

Title: Re: Petcock/Carb vacuum line - size
Post by Dave on 10/16/15 at 04:22:30

The stock vacuum petcock can work, and it you want to use that.....Cool! There are a lot of them out there that work just fine for years. I think the failures have a lot to do with the type of fuel sold in the area you live, and how long the bike sits between rides.

You do need to be somewhat familiar with what the symptoms are when the vacuum petcock fails, and I would suggest that you put a rubber cap and golf tee in your toolkit....so that if you are out riding and it begins to act up - you can disconnect and plug the vacuum line and put the petcock on PRI so you can get back home.

There are a lot of folks that experience weird running problems and look at the carb, ignition, safety switches, etc.....when it is just the stock petcock diaphragm causing the running problems. They can either flow too much fuel....or too little fuel, just depends on if the diaphragm has become stiff and doesn't move - or gets a hole in it.

Title: Re: Petcock/Carb vacuum line - size
Post by stewmills on 10/16/15 at 11:55:26

546F6275646873756E666B74070 wrote:

I would suggest that you put a rubber cap and golf tee in your toolkit....so that if you are out riding and it begins to act up - you can disconnect and plug the vacuum line and put the petcock on PRI so you can get back home.

Now there's a really good suggestion! I don't golf, but I do happen to have a box of tees down at the shop. I should use them to make "breakdown kits" and sell them ;D ;D