New vmax owner headshake

[sdt354]

http://vmaxforum.net/showthread.php?t=3827


This is what I went by when replacing my forks with an 05. Front end.

I can post more when I get home. But I used a dremel to cut a slot into races. U have to go into the frame seat for races but wont effect anything. Then the races came right out.. I used all balls bearings. Just the lower bearing dust seal I had to dremel out the openening in the metal.. you will need a press and a long tube to push new bearing on triple tree... I used a chisel and hammer to get it off. Kyle said he uses all balls too. I can get u a P/N when I get home.. I think they were 30 for the set of 2.. start disassembling and really clean and inspect them.. home you know how to pack bearings.. or just go to Napa ir harbor freight and get a bearing packer.. cheaper to do it by hand thoogh[/QUOTE

I removed races almost the same way, but saved a little metal to break with a chisel. I agree, no issue if you nick the head a little inside. I used a piece of pvc to drive the bearing on, tree on a piece of wood. Cut a piece of pvc off about 2 inches long, then sawed that in half. With the saw curf it fit close enough around the bearing inner race. I drove the long piece of pvc over the halfs. Do pack the bearing right. http://www.youtube.com/watch?v=agxjGtmHV_4 this should help out.
Steve-o

 

[donnelly317]

Dealer sold me all balls bearing kit. 22-1004. Make life easier u can see how much just lower dust seal is instead of grinding the one in the kit to make it fit. Up to u

 

[Saint]

How does this look? http://www.ebay.ca/itm/ALL-BALLS-YA...rcycles_Parts_Accessories&hash=item2a1b76015e

Does it include everything I need to do the job?

 

[donnelly317]

Yup that's what I used.. see the gold metal part of seals? That's what u would have to dremel bigger to fit around the lip on the lower bearing.. unless u buy the yammy seal. Ull see what I meen when u get the old bearing off and go to fit the dust seal on there

 

[gamorg02]

i'd be happy to expand on the tool i used or probably send it off if someone wanted to try it.

 

[m-cman]

I would just get the OEM bearings and not worry about mods. Every part/o-ring/gasket/bearing I have replaced on my Max had been OEM. Except accessories of course. K&N Yamaha of Tulsa has best price on OEM stuff. Just tell Tyler McDonald there you are on vmaxforum.net. He is the contact on the discounted prices. They are 25% over actual cost.

 

[donnelly317]

^ that's like saying go to a chevy dealership for brake pads. What's the cost of OEM bearing? What I saw was pritty expensive when its probably the same exact bearing lol. Only think different is lower dust seal.

 

[Saint]

Well here I am getting ready to park for the winter. I rode all summer even with my wobbles, although over-torquing the steering bearing helped a lot with the high speed. I'm good up to 200kph with a really tight bearing and just put up with the slow speed weave (really not that bad). So anyways I pull the front end apart this past weekend and as far as I can tell my bearings look fine. Lots of grease and no notchy-ness with the forks and wheel off. I repacked the upper and just slopped a bit of grease on the lower and I'm right back to where I started. Aside from over tightening the bearing, the front fork psi and rear shock preload affected the wobble a great deal as well. So asuming my bearing inspection is fine, I suppose front and rear springs would be the next thing to try? (keep in mind I already have new tires, balanced. And my wheel bearings felt OK too.)

 

[jfeagins]

Can you post up some video of the back tire with it running, in gear, on the centerstand?

 

[Saint]

sure can, Ill try that tonight. If its not straight what are you thinking it is?

 

[Saint]

Well I just got off work 9:30pm and I can't get enough light to capture a good video of my wheel, but it is definitely going in and out. I held a straight rod next to it and the rear wheel weaves in and out, but the problem is the entire bike seems to rock side to side on the centerstand while running in gear so I can't tell if that's why it looks like its weaving.
Lets say the bike was perfectly still and only the wheel was moving,and it was weaving, would that be a bent rim? or is there something else to look for here? I had wobbles before and after my new tires went on,so I don't think its the tire sitting on the rim incorrectly.
Before I start buying springs I would appreciate some more suggestions

 

[gamorg02]

what brand tires?

 

[Saint]

170 and 110 metz 880

 

[jfeagins]

Well I just got off work 9:30pm and I can't get enough light to capture a good video of my wheel, but it is definitely going in and out. I held a straight rod next to it and the rear wheel weaves in and out, but the problem is the entire bike seems to rock side to side on the centerstand while running in gear so I can't tell if that's why it looks like its weaving.
Lets say the bike was perfectly still and only the wheel was moving,and it was weaving, would that be a bent rim? or is there something else to look for here? I had wobbles before and after my new tires went on,so I don't think its the tire sitting on the rim incorrectly.
Before I start buying springs I would appreciate some more suggestions

If your whole bike is weaving back and forth while just sitting there on the center stand running, IMAGINE what it's doing at speed on the hwy! Oh wait, you already know what it's doing while on the hwy - HENCE this whole thread.

So, when you ordering a different back tire to fix this ordeal? I say back tire, cause unless your back wheel has endured a serious accident or a blunt run in with a curb, it most likely is NOT the cause of this side - to - side runout. Dunlops are bad about doing this. Could possibly be a problem with the install - if the bead ain't seated just right, but usually due to a cord inside the bias ply tire out of spec. New tires could get this way in a hurry due to hitting bad chug holes in the pavement, especially during hard accelerations. I used to live in a town with brick streets and plenty of rough crap going on in your avg brick street situations.... I've heard radial tires aren't nearly as likely to do this as bias. I don't have any hard evidence that that is the case though, only what I've seen and heard in conversations over the years.

You should be able to VERY CAREFULLY put something up near the outter surface of your wheel rim (get someone to hold the bike from phyically wobbling on the stand) to see if your wheel has any damage/runout or not. Most likely just the tire, or the way it's seated on the bead. If it's a bad bead seat, you should be able to see that by CLOSE EXAMINATION of where the tire meets the rim, some tires have some sort of marking going around its circumference to go by during a visual inspection.

 

[jfeagins]

Incidently, properly balancing a tire can make it feel as if its buttery smooth going down the road under normal circumstances, and yet still have the side-to-side run out happening. At higher speeds, that side-to-side force transmits up the frame and shows up at the front end in the form of a wobble.

Out of balance tires usually cause an up/down hop or vibration kind of problem. An out of balance front tire would normally be more noticable because of the proximity to your handlebars, but it would usually be vibrations, and not wobbles. Cupping tires will usually cause vibrations and/or bad hopping too, but IMO seldom cause wobbling - at least not the type of wobbling that is life threatening above 100mph.

All of this is just my own personal experience obtained from nearly 40 yrs of enjoying motorcycles, and my observations during that time.

I'm not sure why it's so hard for me to convince others (give or take Sean and/or DLCrays) to believe me when I keep saying that tank slapping and high speed wobbles could be caused by a back tire (not saying its the only cause, mind you, but the most likely cause), but most of the time I feel like I'm up on a proverbial soap box preaching to a non-caring crowd.

my two(2) cents AGAIN. Use it or lose it.

 

[Saint]

I'm with you 100% on the rear tire possibly causing a wobble at certain speeds. It makes sense to me. I guess radials might be the cure. I was trying to eliminate other causes since I just bought these metzelers in the spring and rims are a bit pricey for the vmax (and I think I read discontinued?)

 

[jfeagins]

I'm with you 100% on the rear tire possibly causing a wobble at certain speeds. It makes sense to me. I guess radials might be the cure. I was trying to eliminate other causes since I just bought these metzelers in the spring and rims are a bit pricey for the vmax (and I think I read discontinued?)

It takes a LOT to bend a rim. I doubt you need one.

 

[one2dmax]

I have sets of Carrozzeria wheels still remaining and even if yours aren't bent I think you'd find that they were worth the money once you had them installed and see what the difference in handling was.

Sean

 

[Saint]

I doubt it too, I'm feeling lost here. I really thought it would be my bearing but it looked brand new. Just having a hard time accepting an 07 with now 8000km can't go straight without spending loads of money. I'm not giving up the vmax really grew on me this summer.

 

[Saint]

Thanks Sean I'm seriously considering it. My 650r Ninja had wider radials and definitely hugged the road better, but that was all forgotten when I whacked the throttle on the vmax and felt vboost I'm in Canada.. would shipping kill me?