Flat rear tire in my Garage. Schraeder Valve?

[LK1LK1]

So, I'm out on the highway yesterday on a beautiful 75-degree day. I had checked my tires prior to the short trip, 36 PSI upfront and 41 in rear. The ride went fine, although I felt that I should probably lower the suspension in the rear because the ride felt unnecessarily harsh.

BEFORE my short 30-minute ride, my check of the rear-tire pressure surprised me when I attached my (Jaco) pressure gauge. Unlike the front-tire stem, I heard a slight rush of air when pushing upon the rear-tire stem. I thought it unusual, of course, and I'm an experienced rider who has always checked tire air pressure prior to any length of trip. I dismissed it as just a fluke, because the re-check of the pressure showed 39.5 PSI.

I had noticed the 90-degree rear-tire stem was NOT the same type of (metal) 90-degree tire stem as mounted upon the front tire. I assumed such a short burst of air when pushing upon the stem was not much of an issue, although unusual. A wrong assumption. I now have a "flat" on the rear tire, which I noticed about an hour after my return trip.

Both tires are the Elite 3 series, have about 4,000 miles of use, and were installed by a local (large) motorcycle shop about two years ago. My bike is kept in a heated garage on a flat concrete surface when not in use.

As a summary, (finally): I guess I'll just fill up my portable air tank, attempt to inflate the tire (... the tire bead is not broken from the wheel), and then try to get the bike on the center stand to look for any object that I may have picked up. I think this situation is a bad STEM. What to do now? I've never encountered this situation in over 40 years of riding. I'd like to think there's some sort of sealant or other device where I could temporarily repair a valve stem, (Schraeder or other), while the wheel still on the bike for the purpose of my slowly transporting the bike to a stealership. Crap ! Oh well, at least the bike is in my Garage. Any helpful comments appreciated !

[MikeB]

I suppose there are chemicals and such that you can try to use but then the shop that works on it will probably not be happy that you put something in the tire. It makes for a pretty sloppy mess during disassembly.

You could try to fix it yourself. Once you get the bike on the center stand, deflate the tire. Use some large "C" clamps and break the bead near the stem. Get some streel stems that are secured with nuts. There are many different types and styles. Some with the nuts that are installed from outside the wheel and some with the nuts installed from inside the wheel.
These are what I use when I replace a tire:

or

What you have now is probably like these OEM stems:

Anyway, the OEM stem is easy to remove. Simply cut it off where it goes through the wheel.
Installing the metal stem is not too tough either. Slip it in between the tire and wheel and stick it in the hole. Then install the nut and make sure it is secure.
Remove the "C" clamps and put air in the tire.

[dmessick811]

This is what I used when I had a rubber stem crack and leak. Very easy to install without breaking the bead. I then took the bike to the shop for a proper metal stem.
Colby Valve Permanent Valve Stem Replacement - installs from Outside of The Wheel https://www.amazon.com/dp/B06Y1TQZK4/?tag=goldwingdocs-20 ... E36B8YEB19

[MikeB]

This is what I used when I had a rubber stem crack and leak. Very easy to install without breaking the bead. I then took the bike to the shop for a proper metal stem.
Colby Valve Permanent Valve Stem Replacement - installs from Outside of The Wheel https://www.amazon.com/dp/B06Y1TQZK4/?tag=goldwingdocs-20 ... E36B8YEB19

I like it.

[Rambozo]

Put some air in and locate the leak before anything. Maybe you will get lucky and it's just a bad valve core.

[Rambozo]

This is what I used when I had a rubber stem crack and leak. Very easy to install without breaking the bead. I then took the bike to the shop for a proper metal stem.
Colby Valve Permanent Valve Stem Replacement - installs from Outside of The Wheel https://www.amazon.com/dp/B06Y1TQZK4/?tag=goldwingdocs-20 ... E36B8YEB19

Never seen that before. Definitely going in my just in case kits.

[Lumberjack1844]

This won't work in this case but a neat idea. I have one but haven't used it yet.



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[LK1LK1]

.Thanks to Mike B on the suggestion of using large "C" clamps to break the bead on the rear tire, and then the "reaching into" the tire and installing the new 90-degree metal valve stem. All went well, and I had taken care of it in my garage without removing the tire/wheel. Thankfully, a GoldWing member out of Green Bay had stopped by to help me during the entire operation. It took awhile, but now completely repaired and with the much stronger 90-degree metal (bolt-down) valve stem. Thanks so much for the replies and suggestions for repair!