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Message started by Vinny68 on 08/27/18 at 06:29:18

Title: Vacuum Cap recommended size
Post by Vinny68 on 08/27/18 at 06:29:18

Good day. I am preparing to do the the recommended Raptor Petcock install and wanted to ask a quick question. If I were to get a Vacuum Cap to cap off the end as opposed to stopping up the vacuum hose, what is the necessary size and is this something that can be grabbed at Autozone/O'Reillys. Sorry if the answer is available elsewhere I have not been able to locate it.

Thank you for your time, I appreciate the help.

Title: Re: Vacuum Cap recommended size
Post by MarcosS40 on 08/27/18 at 06:53:27

I believe the vacuum nipple is 1/4".(Prob. metric but 1/4" is close enough) You can get a blister pack assortment of sizes for a buck or so at any auto parts store. I put a small worm clamp on mine just to be sure it sealed.

Title: Re: Vacuum Cap recommended size
Post by GOF on 08/27/18 at 07:41:56

There is a pinned Post in the technical section that says 3/16"

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1166804153

Title: Re: Vacuum Cap recommended size
Post by Vinny68 on 08/27/18 at 07:44:00

Thank you for the link.

Title: Re: Vacuum Cap recommended size
Post by elricfate on 08/27/18 at 12:05:09

I got mine from amazon for cheap.

https://smile.amazon.com/gp/product/B008DZSZK6/

Title: Re: Vacuum Cap recommended size
Post by justin_o_guy2 on 08/27/18 at 15:19:38

You have the perfect guide.
Take the vacuum line with you.
IMO, best, easiest answer is wooden dowel shoved into the shortened vacuum line. The caps eventually crack and leak.

Title: Re: Vacuum Cap recommended size
Post by Tocsik on 08/29/18 at 10:05:16

746B6D6A7770417141796B672C1E0 wrote:

... The caps eventually crack and leak.

True dat. Check your vacuum cap occasionally if it's what you're using. Mine was in pretty bad shape once. Looked like an old weathered tire after sitting in the desert sun for a decade. They must not tolerate the heat from the cylinder.

Title: Re: Vacuum Cap recommended size
Post by Dave on 08/29/18 at 10:40:27

When you buy and install the vacuum cap....put a spare one in your tool kit

233C3A3D20271626162E3C307B490 wrote:

You have the perfect guide.
Take the vacuum line with you.
IMO, best, easiest answer is wooden dowel shoved into the shortened vacuum line. The caps eventually crack and leak.

If you want to use a piece of the vacuum hose - cut a short section and install it on the carb nipple, and then install a metal screw in the open end - with a bit of sealer on the threads. It works fine....doesn't look as good as a genuine vacuum cap.

Title: Re: Vacuum Cap recommended size
Post by Vinny68 on 09/05/18 at 18:06:46

Thanks for all the advice, made the swap this evening and I could not be happier. Much much easier with all the information and help on the site.