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Old 09-11-2017, 07:26 PM
sorbemca sorbemca is offline
Join Date: Nov 2016
Location: San Diego, CA.
Posts: 8
Favorite Pingel Petcock for a Special

My '79 SF is coming along on the rehabilitation, I've got all the parts now to rebuild the front brakes, SS lines arrived today.

After much reading and research on here, I've decided to eliminate the Octy in the interest of reliability.

Both failure modes are not attractive, and although I am old, I can still remember to turn off a petcock. Plus I just can't bear the thought of 17 hose clamps waiting to leak.

I'm probably going with Pingel petcocks unless someone has a better, less expensive, recommendation.

They have the SF 34MM adapter plate to 3/8 NPT that most of their petcocks use.

Any one have a recommendation on what model Pingle works well with the SF teardrop tank?

I've seen the tech tip on in-line filters and want to install them too.

Any other advice on replacing the petcocks and eliminating the Octy?

I know I need a plug for the #2 carb vac port.

Thanks for any help,

79 SF
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Old 09-12-2017, 07:19 PM
TopCatGr58's Avatar
TopCatGr58 TopCatGr58 is offline
Join Date: Jul 2002
Location: Portsmouth, Va.
Posts: 12,621
Hey Sorb,

I got some petcocks off of eBay, made my own adapter plates. I had to drill out/widen the opening in the tank a little to accommodate the petcock filter screen/tower. Also cut my own rubber gaskets out of large NEOPRENE washers. Still used that special fuel resistant sealant,(Seal All). Used neoprene O-ring on the mounting screws vs. fiber washers...YMMV. I think Mikes.net has adapter plates, or was it Partsnmore.com, along with generic petcocks.

Most of the petcocks will have the ability to change/position the output nipples forward or rearward, maybe even downward which can help position them away from the carb tops. Also suggested to run the right petcock to the left pair of carbs, and vice versa, allows you to lift the tank more for easier access to connect/disconnect lines, also room for the inline filters going across the intake tubes before going downward to the fuel inlet T's between the carbs at the bottom of the carb body.

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Old 09-19-2017, 07:41 AM
TADracer TADracer is offline
XS-XJ Guru
Join Date: May 2006
Location: Kenner, Louisiana USA
Posts: 1,415
Only thing about Pingels is they are so damned expensive! Many years ago I put on a pair of Alfa high flow petcocks (not sure if they are still made) and I think they were about $19.00 each. 3/8" threaded that will fit your adaptors. Now just recently I took them off to rebuild them with gaskets I got from J&P Cycles for $3.95 each and they are ready to go again for several years.

Even cheaper replacement petcocks will flow way more fuel than the motor will take at WOT so if you can find something that works, save yourself a few $ IHMO
Mike Giroir
79 XS-1100 Special

Once you un-can a can of worms, the only way to re-can them is with a bigger can.
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octy, octy bypass, petcocks, pingle

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