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Thread: Motorbike punctures
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4th July 2010, 06:19 PM #1Hewer of wood
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Motorbike punctures
For the first time in two decades ....
My initiation into the world of punctures was in the 80s on the Geelong road. Hammering back to Melb. at max speed plus some on the old Yammie XS650 all of a sudden the back end started slewing left and right. Got it stopped without disaster with butt still clenched. Crikey, when tubes go they go fast.
A truckie kindly stopped to check that I was OK and we wheeled the big lump onto his tray for a drop-off at a tyre place in the SW of Melb.
They had tubes and tyres but no machines for bikes. Yeah, here's some levers and a mallet they said, go for it. Alloy rims and spokes were what the Excess sported. How to hit hard enough without bending the rims?! Couple of hours and lots of sweat later we were mobile again.
Fast forward ...
Last week, I took off from the lights in the 'urbs on my Fireblade and some plick with an L plate and a Hyosung drifts in front of me. Hmpph. Blast on the horn, but take it easy; only 2nd time out in six months.
Bike starts to weave a bit. Curious.
Further up the road: it feels like one of the two front discs is binding.
Still further it feels really peculiar so I pull into a side road, stop and take a look. Double hmpph. Flat rear. Dammit.
Not far from home. Decide to leg it. With top box, helmet, waterproof and fleeces. Half an hour later, sweaty and sore, make it to Casa del Ern. Get out the 12v compressor and drive back in the car. Pump the tyre up to 31psi and in 3 minutes it's down to 22. OK. It's a slowish leak. Get it up to 36 and ride home.
OK, what next? I have a spare wheel with new tyre that could go on, but there's maybe a thousand k left on this one. I've carried a puncture kit since returning to riding a while ago so why not give it a try. Glue might be cactus but it's still worth learning how to do it.
So after reaming, threading, coating and poking there's two disgusting looking brown rat tails sticking out of the hole.
Pump the tyre up again, with a foot pump this time (took for bleeding ever), leave it overnight and good heavens, it's still hard in the morning! I should be so lucky ;-}Cheers, Ern
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4th July 2010 06:19 PM # ADSGoogle Adsense Advertisement
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4th July 2010, 07:49 PM #2
That type of repair is only designed as a tempory fix until you can have the tyre replaced. I wouldn't run it further than the nearest bike shop and definitely not 1,000 kilometres.
.
I know you believe you understand what you think I wrote, but I'm not sure you realize that what you just read is not what I meant.
Regards, Woodwould.
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4th July 2010, 09:37 PM #3
Agree with Woodwould. Plug type repairs are very common for forbies (I put one in Red 'Roo that went for over 20000k) but these have very thick rubber to bed into plus if one goes suddenly it only affects one corner of the vehicle. These however are still officially regarded as temporary.
Your tyre would probably have been ok with a patch repair on the inside (a proper radial rubber patch, not the sort that you use on an inner tube) but I don't know if a repairer will fit one now it's been plugged. Try calling a few tyre fitting places and see what they say.
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4th July 2010, 09:37 PM #4Hewer of wood
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Yes, that is the supplier's warning.
Have mates in the club that have got several thousand km's out of their plugs.
But of course I'll be watching.Cheers, Ern
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7th July 2010, 11:10 PM #5GOLD MEMBER
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I repair all of my motorcycle tyre punctures, had a few in the last 5 years.
Tubeless tyres with a plug on a Fireblade, not a good idea I think.
The tyre should be removed, the plug pulled and replaced with an internal mounted mushroom plug. I have a box of them.
At your age (and mine) 1,000 klm's left on a tyre with a plug in it, isn't worth it.
The XS 650's were a funny thing, vibrated like a rocket on heat, but would go like a cut cat until near terminal velocity. Unlike Triumph's, they did keep on running reasonably highish mileage.
(R1100GS)
Mick.
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7th July 2010, 11:14 PM #6GOLD MEMBER
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Umm, a trick from when one is really in trouble. I've used this and so has a mate, but really only for low speed stuff, nothing over 60 km/h
Use a self tapping flat metal screw, they go in a treat and will get you out of a hole in literally a minute.
Carry about 3 different gauge sizes, if they don't work, then the hole is too big to be plugged anyway.
If you have a front flat then you can usually ride for about 10-20 klm's, more than that and the tyre gets really, really hot, personal experience with that.
Mick.
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7th July 2010, 11:48 PM #7
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8th July 2010, 08:56 AM #8Hewer of wood
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Good idea about the self tapper.
Take you point about the mushroom plug .... but that'd cost me around $50 to have done to recover about $50 of remaining wear. So not worth it.
I'll take care with the rat tail plug. It's right in the centre. No mono's. Have a mate with same model 'blade who has run down to the wear bars with similar.Cheers, Ern
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