SuzukiSavage.com - Petcock Replacement

Arnold Serious Thumper Offline The dude abides... Posts: 896 Westchester, NY Gender:	Petcock Replacement 09/01/10 at 09:53:25 So, after putting my stock petcock back on, I found out it is slowly leaking (from the tank to petcock connection). I've order the Raptor replacement which of course is a manual petcock. My question is this, once I replace my vacuum petcock with a manual one, should I plug both vacuum lines on the carb off? Thnx guys.
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spacepirates

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Re: Petcock Replacement
Reply #1 - 09/01/10 at 10:29:43

There is only one vac line on the right side of the carb. It has a metal casing that follows the hose up to the stock petcock. you might be confusing it with the two vent lines (symmetrical on either side of the carb), which need to stay open.

I filled the vac with RTV and shoved a small screw in there which seemed to do the trick.

If the stock petcock is leaking from the tank/petcock connection, you might have the same problem with the raptor. next time you take the petcock off, make sure there is a clean, flat mating surface on the bottom of the tank for the petcock and that the petcock goes on tight.

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Arnold

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Re: Petcock Replacement
Reply #2 - 09/01/10 at 11:22:09

Got you, I'm draining the tank tonight and will look at the gasket there. Maybe I over tightened it, but the petcock itself looks old and rusty. I figured a manual one should be better.

It wasnt leaking before, only started when I put it back after some mods that required the tank off.

Anyway, I'll find a way to plug that vacuum line, maybe a rubber plug from the auto store.

Thanks again.

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: Petcock Replacement Reply #3 - 09/01/10 at 11:27:35 the tank to petcock seal is a shaped o-ring. mine was cracked so I replaced it with a regular round one. the bolts also need a sealing washer, same as the ones used on the engine.
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Arnold Serious Thumper Offline The dude abides... Posts: 896 Westchester, NY Gender:	Re: Petcock Replacement Reply #4 - 09/01/10 at 11:34:39 So rubber o-ring and flat metal washers. I'll take it off tonight and inspect. I believe the auto part store or local hardware store should have that. Dont feel like waiting a week for the new petcock
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: Petcock Replacement Reply #5 - 09/01/10 at 11:39:23 Arnold wrote on 09/01/10 at 11:34:39: So rubber o-ring and flat metal washers. I'll take it off tonight and inspect. I believe the auto part store or local hardware store should have that. Dont feel like waiting a week for the new petcock sealing washers, these are rubber coated.
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Arnold Serious Thumper Offline The dude abides... Posts: 896 Westchester, NY Gender:	Re: Petcock Replacement Reply #6 - 09/01/10 at 11:56:24 Really? Crap, I know mine arent anymore. More like rust coated.
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jsarsfield

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Re: Petcock Replacement
Reply #7 - 09/01/10 at 13:28:19

Arnold wrote on 09/01/10 at 11:56:24:

Really? Crap, I know mine arent anymore. More like rust coated.

Mine are just regular washers ... The stock shaped o-ring keeps fuel from leaking around the bolts. I'm pretty sure it is the same with the raptor I changed to a raptor a couple weeks ago and haven't had any leaks using regular steel washers.

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Arnold Serious Thumper Offline The dude abides... Posts: 896 Westchester, NY Gender:	Re: Petcock Replacement Reply #8 - 09/01/10 at 13:55:01 Just got home from work, tank is draining now. About to take the petcock off and see if I can fix temporarily so I can ride while I wait for the raptor's.
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: Petcock Replacement Reply #9 - 09/01/10 at 14:10:02 put some rtv under washers of mounting bolts new oring or rtv it.
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verslagen1

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Re: Petcock Replacement
Reply #10 - 09/01/10 at 14:11:16

jsarsfield wrote on 09/01/10 at 13:28:19:

Arnold wrote on 09/01/10 at 11:56:24:

Really? Crap, I know mine arent anymore. More like rust coated.

Mine are just regular washers ... The stock shaped o-ring keeps fuel from leaking around the bolts. I'm pretty sure it is the same with the raptor I changed to a raptor a couple weeks ago and haven't had any leaks using regular steel washers.

If I remember correctly, the raptor petcock seal has bars across to seal out the bolts.

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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28644 Tucson Az Gender:	Re: Petcock Replacement Reply #11 - 09/01/10 at 14:14:27 Arnold,... you'll need to block the carb vac line with more than just a rubber nipple plug... The vacuum will suck a hole in that in just a month or two... I've got a snug screw in mine, and covered it with a nipple plug for good measure... ...
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DrunkenDwarf Senior Member Offline Morning Zombie Posts: 325 Seattle, WA Gender:	Re: Petcock Replacement Reply #12 - 09/01/10 at 14:23:23 Serowbot wrote on 09/01/10 at 14:14:27: Arnold,... you'll need to block the carb vac line with more than just a rubber nipple plug... The vacuum will suck a hole in that in just a month or two... I've got a snug screw in mine, and covered it with a nipple plug for good measure... ... Really? -D. Dwarf
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Arnold

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Re: Petcock Replacement
Reply #13 - 09/01/10 at 18:19:36

Ok, I put some RTV on O-ring and the 2 washers, it's still drying so I dont want to put some gas in the tank just yet. I'll let it fully cure and tomorrow I'll put some gas when I get home from work. Hoping for the best. I also replaced the fuel hose with a heavy duty one, I found a plug for the vacuum line of carb that will work but I guess I'll have to put a screw in it now

Didnt know it'd suck this much.

What kind of screw goes in? What kind of thread? I guess since it's brass it will thread whatever you put in.

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: Petcock Replacement Reply #14 - 09/01/10 at 18:28:20 Arnold wrote on 09/01/10 at 18:19:36: What kind of screw goes in? What kind of thread? I guess since it's brass it will thread whatever you put in. any kind rolling around on the floor that won't stick out the tail pipe. goop up the threads with rtv and stick it.
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