News:

This forum is run by RPM and donations from members.

It is the donations of the members that help offset the operating cost of the forum. The secondary benefit of being a contributing member is the ability to save big during RPM Holiday sales. For more information please check out this link: Membership has its privileges 

Thank you for your support of the all mighty FJ.

Main Menu

Tyre losing air

Started by chiz, August 05, 2021, 05:35:19 PM

Previous topic - Next topic

ribbert

Quote from: Pat Conlon on August 06, 2021, 07:37:07 PM

Not yet...I'm considering getting one.


Do!

I get a lot of punctures and the repairs don't always follow the script. Stick making a hole too big plug, multiple punctures (7 plugs and still leaking like a sieve from other holes) the valve stem I posted yesterday, botched repairs that haven't sealed properly etc.
However, the one single event that has given my compressor the most work over the years is helping other riders who didn't have one, just CO2 canisters!

I've probably used my compressor a dozen times where canisters wouldn't have been enough.

I've also taken to letting my tyres down if I'm on unsealed roads for a few hundred km's or more, it handles better and the tyres are less likely to be damaged.

Noel
"Tell a wise man something he doesn't know and he'll thank you, tell a fool something he doesn't know and he'll abuse you"

Pat Conlon

Yep, you're right...I'll get one. Today's mini compressor's seem to be small and efficient.

1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

Old Rider

Quote from: ribbert on August 07, 2021, 09:37:05 AM
Quote from: Old Rider on August 07, 2021, 03:49:12 AM
.... I had problems with a leak in the bead. After replacing the tire it still leaked in the bead .I then used the stuff that comes in aerosolcan
and it fixed the leak. Next time when the tire was worn out and replaced  the same happened so used the fix a flat in aerosol can again and the leak stopped.
I think the reason for the leak in the bead was me not being careful enough when replacing the tire at home and made a scar in the rim...

Rolf, rims often get rubber stuck to them where the bead sits, you need to thoroughly clean it with each tyre change or risk the bead not sealing properly, I use a wire brush in a drill.

I have always used a puncture kit the same as yours but the plugs Pat mentioned look interesting. A bit of research suggests carrying both is a good idea, they don't take up much room. Like you, I have long since stopped treating them as a temporary fix and leave them in there for the life of the tyre.

It's not a bad idea to check the glue and plugs occasionally, they both dry out over time and a fresh card of plugs and tube of glue are cheap.

Noel

Noel  Thanks for that tip i never payed so much attention to the surface the bead sits, next time i get my reading glasses on and use your technique ! :good2:

Also thanks for reminding to check the repairkit more thoroughly  took a closer look and to my surprise i fond a flat emptied gluetube and when looking at the one co2 canister i have
left it had a hole in front  :biggrin: i was thinking hmmmm then used a toothpick and it confirmed that it was definitive used why did i keep that in the repair set wallet  :scratch_one-s_head:
so out i ride to fill the repair set with new stuff if it isn't cheaper to just buy another set

red

Quote from: Old Rider on August 07, 2021, 12:02:47 PMNoel  Thanks for that tip i never payed so much attention to the surface the bead sits, next time i get my reading glasses on and use your technique ! :good2:
Old Rider,

As most body'n'fender guys will tell you, hands and fingers often work better than just eyeballs alone, for finding defects in smooth surfaces.
Running a hand around the rim at the bead is a good "second check" for dirt or dings.
Cheers,
Red

P.S. Life is too short, and health is too valuable, to ride on cheap parade-duty tires.

fj-f3a

Just out of curiosity, has any one else seen this from Ryan at Fort Nine?

https://www.youtube.com/watch?v=Qm6fTWaj3QE
Wings Level

Current
1990 FJ1200, Wet Pale Brown
J17xMT5.5 rear wheel from a 2001 Kawasaki Zx9r
Stainless exhausts
Electronic cruise control
Custom seat
Yamaha R6 Blue Spot Callipers
FJR1300 Master Cylinder
Stainless brake lines

Pat Conlon

Interesting, thanks Gavin. I've never had a mushroom plug push into a tire or leak air.
If I had just one choice, the traditional red string plug is by far the most versatile...mushroom plugs do not work when the puncture is at an angle. Still, I carry both, it's no big deal.

Good PSA on checking your tire kit components. I have discovered that I have some new stuff I have to buy...

Thanks folks
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

krusty

Quote from: red on August 07, 2021, 02:10:36 PM
Quote from: Old Rider on August 07, 2021, 12:02:47 PMNoel  Thanks for that tip i never payed so much attention to the surface the bead sits, next time i get my reading glasses on and use your technique ! :good2:
Old Rider,

As most body'n'fender guys will tell you, hands and fingers often work better than just eyeballs alone, for finding defects in smooth surfaces.
Running a hand around the rim at the bead is a good "second check" for dirt or dings.

Beater/painter trade guys have told me "If you can feel it, you will see it".
91 FJ1200
84 FJ1100 x 2
85 FJ1100
89 GL1500
76 CB750F1
72 CB350F
63 C92 x 2
59 C76
62 C100
63 C100
60 Colleda 250TA x 3
63 Suzuki MD50
77 DT125E
77 DT175E x 2
79 DT250F

chiz

Was the valve... nice discussion.

Troyskie

1984 FJ1100 Ms Effie brand new :)
1984 FJ1100 Pearlie, stock as.
1985 FJ1100 Mr Effie 647,000K and still running hard.
1985 FJ1200 'Yummy' takes a licking & keeps on ticking
2013 Trumpy Tiger 800, let's do another lap of Oz

After all is said and done, more is said than done :)

ELIMINATOR

The g force on one of those brass 90° tyre valves wont help the rubber, :diablo: gave up on them years ago.
BMW 1150GS
Moto Guzzi California 3

ribbert

Quote from: ELIMINATOR on August 09, 2021, 04:08:50 AM
The g force on one of those brass 90° tyre valves wont help the rubber, :diablo: gave up on them years ago.

....and prone to damage if not supported from behind when using.


These low profile ones are what my mechanic recommends but won't fit on the bike that needs them the most.



Noel
"Tell a wise man something he doesn't know and he'll thank you, tell a fool something he doesn't know and he'll abuse you"

red

Quote from: ribbert on August 09, 2021, 06:18:55 AM
Quote from: ELIMINATOR on August 09, 2021, 04:08:50 AMThe g force on one of those brass 90° tyre valves wont help the rubber, :diablo: gave up on them years ago.
....and prone to damage if not supported from behind when using.These low profile ones are what my mechanic recommends but won't fit on the bike that needs them the most.
https://twotyres.co.uk/app/uploads/2020/04/High-Quality-2X-CNC-Motorcycle-90-Degree-Angle-Wheel-Tire-Stem-Tubeless-Valve-Aluminum-Set-e1588857480567.jpg
Noel
Noel,

Maybe those valve stems will not fit, but metal valve stems come in a wide variety of shapes and sizes lately.  If you know the hole size that you have in the rim, shop around.  I prefer the metal valve stems which seal with a common O-ring, not using some special rubber gasket that you can not find.
I quit using the rubber valve stems, for all my vehicles.
Cheers,
Red

P.S. Life is too short, and health is too valuable, to ride on cheap parade-duty tires.

ZOA NOM

I switched back to the traditional gummy sticks after several failures with the mushrooms. I like the quality of the mushroom kit, but it just kept leaking. I've never had a gummy stick fail.

I carry a Dynaplug compressor. It's small and more than sufficient.

Dynaplug Compressor

Rick

Current:
2010 Honda VFR1200 DCT (Full Auto!)
1993 FJ/GSXR 1200 (-ABS)
1987 Porsche 911 Carrera (Race)
1988 Porsche Carrera (Street)
Previous:
1993 FJ1200 (FIREBALL)
1993 FJ1200ABS (RIP my collar bone)
1986 FZ750
1984 FJ600
1982 Seca

Pat Conlon

1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

Domino

I carry this in the glove box on my car. I will also bring it on longer motorcycle trips. It's not super quick, but it does the job. And if necessary, it fits in a pocket

https://www.amazon.com/Xiaomi-Portable-Compressor-Detection-Motorcycle/dp/B07XZCLGVQ/ref=sr_1_1?crid=3Q7UJ7JVWYFO3&dchild=1&keywords=xiaomi+compressor&qid=1628591492&sprefix=Xiaomi+com%2Caps%2C296&sr=8-1