Handeling question

[displacedone]

I just went for a quick ride to the store and back and when I was getting on the interstate 90degree right turn around 25ish the rear felt a bit squirley. Bike is factory except for pressure (35psi recommended by the mechanic who is also a former pro racer, it's all alphabet soup to me) I was thinking it was either tire temp (54 outside) ramp is a 1 1/2 miles from house, tire pressure or stock suspension is too soft for my lard arse (310lbs). There were no bumps and I saw no oil or wet spots, ramp is new concrete and I'm not sure but it might have been..... I don't know what they call it...it lookes like they took a comb to it. I don't usually go this way but it is the long way and the ramp is long enough to hit triple digits and get back down to speed to merge.
Thanks for your input. I know this was long winded but I figured the more info the better the reply.

 

[Charlesbusa]

Probably cold tire.

 

[nitrousjunkie]

Yep, prolly a cold tire and you need a bit more air pressure.

 

[bigdr]

A bit more air pressure..42psi.. Makes a big difference...

 

[displacedone]

ok on the pressure
as a new rider, Iknow, Iknow I've read all the not a bike for the newbies... how long do you think I should wait untill I start adjusting the firmness, rebound etc of the suspension. Should I just leave it alone and learn the bike the way it is then mess with it?
Also how long does it usually take to warm up a tire??

 

[onerabidshark]

+2 cold tire

 

[Charlesbusa]

ok on the pressure
as a new rider, Iknow, Iknow I've read all the not a bike for the newbies... how long do you think I should wait untill I start adjusting the firmness, rebound etc of the suspension.  Should I just leave it alone and learn the bike the way it is then mess with it?  
Also how long does it usually take to warm up a tire??

If you do any agressive cornering you should have the suspension set-up for your weight.



A lot of factors on tire warmup;
1)air temp
2)road temp
3)type of tire
4)type of riding

But generally a couple miles for a street tire(more if you get cold winters), but its hard to give an exact #.



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[hbr]

There is some good reading here:

OOOPS- same link as above ^

I would say tire pressure low for your weight regardless of cold temps.



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[displacedone]

I was just looking for a ball park. as far as warm up goes I know you guys can't factor all the details for me I am realistic in my expectations
Am I going to have to get a stand to adjust the settings or can it be done on the side stand? I could go get the manual but this can be faster at times.

 

[displacedone]

There is some good reading here:

OOOPS- same link as above ^

I would say tire pressure low for your weight regardless of cold temps.

thanks I read that one the other day. It made me decided that I might not be as ready as I thought I was to start messing with the bike. But seeing as I have no local support I have no choice but to dive in myself. I always said I like baptism by fire. There is nothing like haveing to get it right the first time to put a little pressure on you to do it right.

 

[Charlesbusa]

Am I going to have to get a stand to adjust the settings or can it be done on the side stand?  I could go get the manual but this can be faster at times.

It will take 2 people if done on the sidestand.  One to raise a tire off the ground by tilting on the sidestand and hold it while the other person takes measurements.

Just be real careful tilting/pivoting a wheel off the ground on the sidestand.  I wouldn't do it this way without having done it before.  

Plus its better if you adjust the rear preload with the weight off the swingarm, so even a rear stand won't do. Read the link above, Jinkster describes a way to raise the rear while adjusting rear preload.



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[hbr]

Start with the preload adjustments- front and rear- no stands needed. Front just takes a 17mm (?) socket. Rear takes - a spanner wrench OR a hammer and a long punch or flat head screwdriver.

Then you can test the compression and rebound to decide what feels good to YOU.

Don't let Jinkster's post scare you- it is deep. PM if ya need a walk through- short version

 

[Devious]

I just went for a quick ride to the store and back and when I was getting on the interstate 90degree right turn around 25ish the rear felt a bit squirley.  Bike is factory except for pressure (35psi recommended by the mechanic who is also a former pro racer, it's all alphabet soup to me)  I was thinking it was either tire temp (54 outside) ramp is a 1 1/2 miles from house, tire pressure or stock suspension is too soft for my lard arse (310lbs).  There were no bumps and I saw no oil or wet spots, ramp is new concrete and I'm not sure but it might have been..... I don't know what they call it...it lookes like they took a comb to it.  I don't usually go this way but it is the long way and the ramp is long enough to hit triple digits and get back down to speed to merge.                
Thanks for your input.  I know this was long winded but I figured the more info the better the reply.  

 

Sounds like rain grooves cut into the in the surface. If it is that, there is nothing to do for them. They tend to make bikes wobble a bit sometimes...


David

 

[displacedone]

I got the rest of the answers I was looking for..... I'm hosed for the time being Thanks fellas

 

[hbr]

Am I going to have to get a stand to adjust the settings or can it be done on the side stand?  I could go get the manual but this can be faster at times.

It will take 2 people if done on the sidestand.  One to raise a tire off the ground by tilting on the sidestand and hold it while the other person takes measurements.

Just be real careful tilting/pivoting a wheel off the ground on the sidestand.  I wouldn't do it this way without having done it before.  

Plus its better if you adjust the rear preload with the weight off the swingarm, so even a rear stand won't do.  Read the link above, Jinkster describes a way to raise the rear while adjusting rear preload.

Charles will have you setting personal best lap times @ Button Willow in a day or so.

 

[displacedone]

One of the things I was reading on his post that struck me was his weight... I have 70lbs on him...if he need stiffer springs to get it right then i definetly will
I noticed the jackstand trick
I am sure it can be tricky balancing the bike on the side stand and unfortunately I found out in my first 5 minuts of ownership that I am capable of picking it up off the ground alone so I should be able to balance it and have my brother do the measuring for me.

 

[Charlesbusa]

Am I going to have to get a stand to adjust the settings or can it be done on the side stand?  I could go get the manual but this can be faster at times.

It will take 2 people if done on the sidestand.  One to raise a tire off the ground by tilting on the sidestand and hold it while the other person takes measurements.

Just be real careful tilting/pivoting a wheel off the ground on the sidestand.  I wouldn't do it this way without having done it before.  

Plus its better if you adjust the rear preload with the weight off the swingarm, so even a rear stand won't do.  Read the link above, Jinkster describes a way to raise the rear while adjusting rear preload.

Charles will have you setting personal best lap times @ Button Willow in a day or so.

Ah, I'm not heading out there until July

Its going to be hot!!

 

[tejaschop]

+Tire Pressure
+Tire warm-up
+Ramp rain grooves(maybe, my bet is tire pressure too low and cold tires)

Suggest the above before screw with suspension settings.

Recommended tire pressure for front and rear will be indicated on the tire sidewalls.

just my .02

 

[displacedone]

I have read the 42psi but I they were filled to 35 by the dealer who I thought was a good font of knowledge because he rides a Busa and was a racer. He has claimes that he only runs 35 in his bike. What do I know I'm still a newbie. here is his othersite link and he has pics on the wall at the dealer.... I never asked him why he doesn't race anymore. http://www.georgiasportbike.com/forums/member.php?userid=1907

 

[Ride_or_Fish]

The busa isn't a light weight sport or dirt bike. Its tires have a tremendous job to do with bike and rider weight and need adequate pressure to do it. 42 psi front and back.