Slow punctures

I've got a slow puncture on the front tyre which drops from 34psi to
around 26psi over 2 weeks. I've looked for knicks and nails but other
than the usual wear & tear (on a 3k mile tyre) I can't see any likely
pucture marks.

Before I go and empty a can of tyre-weld into it, is there anything
else that others have tried (and hopefully succeeded with) to stop
slow punctures?

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, HooDooWitch

Check the valve. Put a blob of spit on it and see if it blows a bubble.

--
Wicked Uncle Nigel - Manufacturer of the "Champion-105" range of rearsets
and Ducati Race Engineer.

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
SBS#39 Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"
Suzuki TS250 "The Africa Single" Yamaha GTS1000

 

HooDooWitch wrote

Check the valve with a little bit of fairy liquid.

Take the wheel out, pump it up *lotz* and submerge the fucker in a
container of water and look for the bubbles.

Take it to a man to get it fixed proper.

 

Ultraseal was praised by our friendly local mechanic.

Tyre-weld is meant as a "get you home" measure, whereas Ultraseal is
designed to be left in permanently.

 

Not a bad idea, the 12R has 17 PSI in the front everytime I come to
ride it.

Quite disconcerting ..

Paul.

 

With that really slow kind of leak, checking for a bubble on the valve
probably won't work. Replace the valve core.

 

Try letting the back tyre down by a similar amount to compensate.

 

<strikes Zymurgy off the 'handy, bike-fettling blokes to know' list>

 

Noted, ta.

 

Tubeless? Probably imperfect sealing at the rim.

 

Noted.

It could be the valve as I usually have to bend the fucker to get
around the front disks with the usual inflators you find at garages.

Might be worth investing in a decent foot pump, or trying to be less
ham-fisted.

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, HooDooWitch

You can get a nice little 90 degree bend that screws on to the existing
valve stem when you want to use a garage air line.

--
Wicked Uncle Nigel - Manufacturer of the "Champion-105" range of rearsets
and Ducati Race Engineer.

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
SBS#39 Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"
Suzuki TS250 "The Africa Single" Yamaha GTS1000

 

HooDooWitch wrote

Unless you are a fat ****, DO NOT buy one of them double barrelled ones.

Always treat your motorcycle as you would treat your woman.

 

Instead of going around the front disks, try going through the disk
carrier instead - sometimes makes life easier.

Get a compressor; you'll wonder how you ever lived without one.

 

Good point, once every two weeks even you'll be able to get on ...

 

<fx: checks pocket money>

 

In my skydiving days it was commented that I fell faster than a brick.
I might manage a triple.

Well, Sarah's expecting our second child *today* so perhaps I'll find
a mini-moto in the garage when I get home.

 

Is that the pink one? I've got some of that in the back of the Triple cos I
thought I had some steel in it. Turns out that they were not very deep at
all.
--
Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
Tyger, Tyger Burning Bright (Remove rust to reply)
Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
Triumph Speed Triple: Black with extra black bits
www.cuore-sportivo.co.uk

 

Well my bike is fucked so I seem to have got that right.

Tony

 

Blimey, that was quick. Best of luck with it.