petcock install

[JTGS850GL]

The issue with using RTV is that it can separate and the pieces end up in your fuel system.

[tkent02]

More rocket science. It's just a petcock, folks.

[Cipher]

The issue with using RTV is that it can separate and the pieces end up in your fuel system.

True I had a few fragments of rtv in my bowls once. Never impacted performance. Use sparingly I guess.

[JTGS850GL]

Just install it like the factory did. No RTV or any other sealant needed. Just use the right gasket and the sealing washers. Done.

[850GT_Rider]

Mr. 850GT, Just curious, have you tried fuel resistant RTV and found it to not work? Do you have first hand experience with this? Just curious... thanks

YES. I don't recall the brand, but I do recall it was supposed to be fuel-resistant. Only thing different between seepage/no seepage was to remove it and use the proper washers.

That said, I have not heard of Hylomar, so that particular product may indeed work as advertised.

As to other comments here about "who can you trust?", I personally try to limit my advice to actual experience. Take it or leave it, I care not.....

[geol]

Was just wondering if you were speaking from personal experience. I don't know you so I asked. I have noted that there are a lot of "pile-on" folks who will spout stuff they have heard 2nd or 3rd handed and their advice is typically worse than useless since they generally spew it with such conviction. To the person who bought the sealing washers at Home Depot. I didn't understand this because Home Depot will NOT have M6 size but will have 1/4" which is larger. How does that work?

In any case, I do keep Hylomar and used some on the thread but will remove the two M6 bolts when the OEM sealing washers arrive from Partzilla and I will put those on, then reinstall the bolts. Hylomar used on bikes is generally the blue gasket sealing stuff... made by a Brit company:

http://www.hylomarsealant.com

When I asked about fuel resistant RTV, I was thinking this stuff which I also have on hand (most other RTVs are NOT fuel resistant).

https://www.permatex.com/products/uncategorized/permatex-motoseal-1-ultimate-gasket-maker-grey/

[Cipher]

the home depot items only have one side rubber.......

[geol]

I understand. My thought is the Home Depot sealing washer has a rubber washer under the metal washer. Since it is larger in diameter than the bolt, and any leakage from the tank would come down the bolt thread, this type washer will likely be ineffective. The Dowty sealing washer if in M6 size fits precisely over the bolt and has the rubber molded on the inside of the metal washer and seems to make a lot of sense because it is purpose-designed to stop leaks. Only issue with the Dowty washer is what material the rubber part is made of; that I do not know if it is fuel resistant as they seem to mostly used on oil line junctions. I have no idea what a Suzuki sealing washer looks like or how it is made so will have to wait till they arrive as I had none on my current or last GS1000 when I removed the petcocks.

[JTGS850GL]

HD sells the Dowty style washer and works perfectly. I've had one on a tank for over 5 years with no leakage issues. The 1/4" size works.