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Discussion Starter #1
ok this is freakin me out:eek: i was just startin 2 wear off my chicken strips when i started 2 experience front tire wash outs. i've only been on a sportbike (if a katana counts) for about 3,000 miles, but did 5 or 6,000 on my v-twin and i've taken what i guess is the m.s.f. course (3 day; little tiny bikes; lots of instructers) the turns i'm havin trouble with are 90degrees, but they're wide enuff lanes where you can swing wide then apex it so ur not really pullin a 90. i was hittin 'em @ about 20. i tried pushin it a little over that (not getting that "too fast" feeling) and WHAM! I break traction with the front tire. saved it:thumb: but not b4 slap dancin with the tank and almost hysidin it.
dilema is this:
now i'm shyin away from the turns i really dig- the ones graduall enuff to hit at interstate speeds- cuz of how much worse it would suck to have one then and i never saw the s**t coming the first time.
is something wrong with my bike or does this sound like a problem due to a common mistake most squids make :confused:
 

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Kanatuna

Ok, first off don't call yourself a squid. :p Actualy being scared of certain parts of riding is mostly a mental thing but don't trash yourself it ruins confedence. Losing grip with the front tire has lots of causes. Cold tire, shitty pavement, slick spots, squid operator, :D teasing on that last one. Seroiusly though my first bike was a 94 katana and it didn't really like being laid down to far. Work on turns slowly, leaning it farther down as you get comfortable. After my last hard crash I had trouble in tight turns for about 2 months. Just cause I was still shaken up from rolling down the freeway at 80 mph. I really doubt somethings wrong with your bike. My first guess is that your tire didn't stick right. If it wasn't atleast slighty warm then the compound prolly wasn't soft enough. Street tires heat up rather quickly but stick like a piece of petrified crap if there too cold. Be sure to give your tires some warm up time before really laying them down. Just work on turns gradualy and it'll come around.

P.S. If your tires are new take it easy till they get "scuffed" or broken in. New tires tend to be slick.
 

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First thing that comes to mind for me is what tire pressure are you running? It sounds like it might be too high. I've washed out on my previous bikes (well actually my first bike a lowly EX 250) for that exact reason. I always run 32/32psi front and rear.
 

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Nice thought Chris. That slipped my mind for some reason. I have been dishonored by a yamaha rider. :D Just kidding.
 

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Tigger RR said:
Nice thought Chris. That slipped my mind for some reason. I have been dishonored by a yamaha rider. :D Just kidding.
Being the How Do I forum moderator, I can't tell you how many times that some had a problem and I jumped right to the most complex possible problems and someone newbie comes up behind my post and says "Yo, it's the kickstand switch".

It's all good.
 

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Could be low tire pressure. Had the front wash out on my 9R last week in a downhill DR turn. Caught it but is scared the crap out of me. This was a corner I take every day at the same speed. The pressure was 29.5 psi. Should be 34. I suppose excess pressure would do them same but I have never over-filled a tire so I can't say from experience.

Old tires can cause this problem too, even if the pressure is good and there is plenty of tread. If the tires show any signs of cracking, even just a little, replace them.
 

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LMAO, Na its perfectly good. I've been a bike tech for several years now, but I'm not perfect. I actualy enjoy learning from other riders and their ideas. That and the challenge of knowing somebody else will add to your posts is a good thing. Keeps my mind working ya know.
 

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First of all............When I was heavy into Kat 6's and GSXR750's I never encountered the washout problem. Here are some fixes.

First.........A good grade of tire is plenty helpful. Second.......Pressure front @ 30 w/ rear @ 30 to start. Third.......I always ran the Kat's front forks on the #3 setting (full hard).

All are relative to the coefficient of friction, traction and the contact patch the tire lays down onto the asphault. DO NOT LET ANYONE TELL YOU THAT THE KAT IS WORTHLESS! This ride can take the rubber all the way over to the ribbon..........

Enjoy the KAT.............I DID! :D


Johnny
Team No Limit Racing &#169 1996-2002
http://www.teamnolimitracing.com
 

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madkate: a question or two.

Like is this a new or 'used' bike, then to have the tyres on this bike been with chicken stripes for some time, lasty what make & type of tyres?
Chris has a good point about tyre pressure.
REMEMBER when you are trying to stay on the "edge of no return" you are probably riding at 110% of your ability & that is only done when in comp.
On the road it should be around 60% of you ability for last 40% is left for safe riding & in case you are forced into trying to avoid an accident caused by someone or something else.
Lastly two prangs does sort of take the whiz out of one for a while.
For your interest some NEVER push the bike to where they are at that "edge of no return" or dragging their footrests let alone the extreme of the knee.
 

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madkate: a question or two.

Like is this a new or 'used' bike, then to have the tyres on this bike been with chicken stripes for some time, lasty what make & type of tyres?
Chris has a good point about tyre pressure.
REMEMBER when you are trying to stay on the "edge of no return" you are probably riding at 110% of your ability & that is only done when in comp.
On the road it should be around 60% of you ability for last 40% is left for safe riding & in case you are forced into trying to avoid an accident caused by someone or something else.
Lastly two prangs does sort of take the whiz out of one for a while.
For your interest some NEVER push the bike to where they are at that "edge of no return" or dragging their footrests let alone the extreme of the knee Just because you have a sportbike does not mean you must push it to the very extreme!!!!
 

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stoinkythepig said:
Could be low tire pressure. Had the front wash out on my 9R last week in a downhill DR turn. Caught it but is scared the crap out of me. This was a corner I take every day at the same speed. The pressure was 29.5 psi. Should be 34. I suppose excess pressure would do them same but I have never over-filled a tire so I can't say from experience.

Old tires can cause this problem too, even if the pressure is good and there is plenty of tread. If the tires show any signs of cracking, even just a little, replace them.
Actually, I've seen a chart that showed the limit of adhesion for a given tire at a given pressure. Over inflated is actually worse (the adhesion curves fell right off the chart) than the underinflated. - The source is "How To Make Your Car Handle". It's a great book and the author pointed out that the chart applied to all kinds of soft compound racing type tires.
 

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Actually, I've seen a chart that showed the limit of adhesion for a given tire at a given pressure. Over inflated is actually worse (the adhesion curves fell right off the chart) than the underinflated. - The source is "How To Make Your Car Handle". It's a great book and the author pointed out that the chart applied to all kinds of soft compound racing type tires.
This certainly makes sense to me and I'd be a firm believer if the front of my bike hadn't washed out last week. Bringing the pressure back up stopped the problem. Did the chart display info for bike tires?

Pure speculation below. Engage BS filter before reading.

Perhaps low pressure in a bike tire causes problems that would not be noticed in a car tire. Judging by the construction of a bike tire, it gets almost no rigidity from inherent stiffness. It relies almost solely on air pressure to retain it's shape. High performance car tires have so much sidewall stiffness that some can have no pressure and still hold the car up. OEM Corvette tires come to mind.
 

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Discussion Starter #14
thanx yaw

thanx a million, people. smitty it's used, i got it 3000 miles ago with the same tires it has now- dunlop k591 rear and dunlop k655 front. the rear's over due for replacement (bald down the center). i just found out my pressure was low 26 front 28 rear and someone mentioned the fork stiffness- mine was on the softest. once again thank yaw for saving me plastic and embarrassment:D
 

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Re: thanx yaw

madkat said:
thanx a million, people. smitty it's used, i got it 3000 miles ago with the same tires it has now- dunlop k591 rear and dunlop k655 front. the rear's over due for replacement (bald down the center). i just found out my pressure was low 26 front 28 rear and someone mentioned the fork stiffness- mine was on the softest. once again thank yaw for saving me plastic and embarrassment:D
Glad we could help. For what it's worth, I check my pressure everytime I ride. It makes a HUGE difference. I ride a little harder than your average guy so I need everything acting in my favor.
 

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Re: Re: thanx yaw

chris_y2k_r1 said:

I ride a little harder than your average guy so I need everything acting in my favor.
Welcome anytime Madkat. Chris makes a real valid point. The harder you push yourself and your bike the more maintenence is required. It's impossible to take too much care of a bike. Attention to small details makes a huge difference.
 

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madkat: so it is not ALL your wrong doing ---

---- & you are not out of your mind.
I would not push the bike to the 'point of no return" till you obtain a proper set of new tyres THEN it is up to you for you will be checking tyre pressure & making sure you have the new tyres properly scuffed up BEFORE you start to push it. We count on you staying in good health & condition gal as the % if female riders compared to us males is a bit on the low side.
 

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Discussion Starter #18
my gender

your point is made (about the low % of fem bikers) by one of 'em (me) actually just bein another damn guy. kat is short 4 katana not katherine or anything like that. at least you didn't c me and then guess me 4 a chick that would've hurt. once again, thanx 4 the help:)
 
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