One front tire is showing abnormal wear
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Hooked
MP3 500
Joined: 09 Jul 2007
Posts: 318
Location: Kitchener, Ontario
Fri Jun 19, 2020 10:20 am quote
I felt my 500 driving funny and saw this.



The right tire is definitely not wearing properly, so is this indicative of an alignment/balancing issue or do I just need new tires?
Hooked
2015 MP3 500 ie Business
Joined: 29 Oct 2019
Posts: 259
Location: Belgium
Fri Jun 19, 2020 10:32 am quote
Defintely looks like (very) abnormal wear, and possibly more than just an alignment issue based on looking at the top of the tire shown.

More like something is bent, and needs to be replaced before trying to have it aligned.
Hooked
MP3 500
Joined: 09 Jul 2007
Posts: 318
Location: Kitchener, Ontario
Fri Jun 19, 2020 10:34 am quote
Thanks, looks like I'm taking the long trip to Toronto then. Sadly there are no certified dealers in the area.
Hooked
2015 MP3 500 ie Business
Joined: 29 Oct 2019
Posts: 259
Location: Belgium
Fri Jun 19, 2020 10:37 am quote
Do you remember hitting any big potholes, particularly on that side?

Could be a bent steering rod or a bent fork among a bunch of other suspect items.
Veni, Vidi, Posti
MP3 500, GTS 250 (both 2008 MY), 2012 Honda NC700 DCT
Joined: 02 Mar 2013
Posts: 6148
Location: Madison, Wisconsin
Fri Jun 19, 2020 10:57 am quote
I'd guess either a severely loose wheel bearing or a bent wheel support.

Try lifting that side by using your tiltlock with the bike leaning toward that wheel, and putting the scooter up on the centerstand.

I'm guessing you will be able to wobble the wheel in a way it shouldn't.
Veni, Vidi, Posti
2008 MP3 500, 2013 BV350, 2020 Vespa Sei Giorni
Joined: 13 Oct 2012
Posts: 8635
Location: Ashburn, Va. Home to the Internet
Fri Jun 19, 2020 1:30 pm quote
Check the wheel bearing Then if you have to do an alignment it is not hard to do to nor does it need any special tools.
Need a phillips screw driver, 12 mm wrench or socket, 3 mm allen wrench to remove fenders and a piece of chalk.
Oh and a jack to get the front wheels off the ground.
Jack up the front end and strap the handle bars straight as you can, doesn't have to be perfect. Take the chalk and spin the tire and get a chalk mark all the way around the center of the tire tread. Do this to both front tires.
Get something with a fine point and spin the tire and make a line in the chalk all the way around the tire as it spins.
Now the alignment just involves getting the lines on the tires so they are the same distance apart front and back of the tire using the spacers at the end of the tie rod ends. They are just thin washer you move to the inside or outside of the tie rod fitting.
Hooked
MP3 500
Joined: 09 Jul 2007
Posts: 318
Location: Kitchener, Ontario
Tue Jun 23, 2020 5:40 am quote
Nope, I didn't got that side with any serious impact. I'll try out the suggestions here and see what I can find, would be nice to save the time and money from going to the dealer.
Thanks everyone.
Ossessionato
Gilera Fuoco 500ie
Joined: 11 Oct 2009
Posts: 4206
Location: Netherlands Olst
Tue Jun 23, 2020 7:13 am quote
not that side? the other hit something?
Hooked
2010 S50 Modified "Punkin"; 2003 ET4 150 "ISO"
Joined: 18 Feb 2017
Posts: 462
Location: Deepinnaharta, Texas
Tue Jun 23, 2020 8:29 am quote
Greetings:

I would venture a "Toe Out" misalignment. Could be due to loose bearing or bent tie-rod.
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 38952
Location: Pleasant Hill, CA
Tue Jun 23, 2020 10:50 am quote
Excessive toe (either way) would affect both tyres evenly.

It's a small camber adjustment on that side that's needed, OR the wheel bearing isn't at 90° to the steering stem.
Hooked
MP3 500
Joined: 09 Jul 2007
Posts: 318
Location: Kitchener, Ontario
Thu Jun 25, 2020 11:51 am quote
Nope, I haven't had any collision's on either side.
Hooked
MP3 500
Joined: 09 Jul 2007
Posts: 318
Location: Kitchener, Ontario
Thu Aug 20, 2020 9:07 am quote
So here's my painful and expensive followup to the fixes for my MP3. I'm clueless in regards to explaining what the problem was as it sounded like Greek coming out of my mechanics mouth so I'll post the bill with all the parts required.

Total cost was $2600 with 13 hrs of labour charged. Ouch.

But that's not the end of it. When I took the bike in after waiting all of July for a part from Italy to arrive, upon picking it up my mechanic mentioned that the wobble was coming from a stone or foreign object that my wheel hub had picked up and had torn a groove into the front right tire which was new. He also indicated that I will be needing new ball joints in the near future, so more money to drop on a 12 year old bike.

So I'm driving it home and wouldn't ya know it, when at city speeds or slower, I'm still noticing a definite wobbling side to side from the front tires, so back I go, after the parts arrive, for front ball joint replacement.

Goodbye summer riding.

On an aside, is there a place I can purchase the ball joints myself for cheaper than the $285 Canadian my mechanic quoted me for them each?

[img] [/img]
Veni, Vidi, Posti
Neutrino MP3 492.7 AK, 2013 Moto Guzzi Norge
Joined: 29 Mar 2008
Posts: 21674
Location: Harriman, Tennessee, Tn
Thu Aug 20, 2020 2:10 pm quote
you mechanic did a steering tube bearing replacement on both and the center tube as well. also looks to replace 1 of the tubes as well.

check af1racing .com for parts

I think the labor was a bit high but that is probably BOOK time.
Hooked
2009 MP3 400, 2004 Honda ST1300
Joined: 11 Jun 2007
Posts: 252
Location: Sayre, PA
Thu Aug 20, 2020 2:36 pm quote
Still shaking my head.

And so is the scooter
Member
MP3-400
Joined: 11 Sep 2020
Posts: 12
Location: USA
Mon Sep 14, 2020 11:28 pm quote
$2600 is definitely more than, “set the toe and let it go!” I may pick up my 12y.o. bike this week. Mine’s the junior 22 r.w.h.p. 400 model though. I’m glad I read this first(!), after all the glowing minimized maintenance reports. It helps me set my priorities: Safety First, Money next, and then everything else accordingly.

Alignments can eat your lunch. I took about 20 photos of my bike, but those tiny front 12” tires tend to hide under the plastic rain shields. I may get the shop to raise those shields up a few inches at an angle anyway, so I can ‘visually supervise’ my tire wear trends. Now, mine are way too low to see my tires in ANY kind of natural light.

After doing alignments at Sears Auto Center while going to school, I try to inspect all my vehicles’ tires every chance I get. Now I wonder if there’s less propensity for mis-alignments with the 12” front tires vs the 13”, since that was the original vehicle engineering specs. 22 r.w.h.p. is not enough of a distraction to sideline my attention at this point, lol. The 13” front tire conversion project just slipped a few levels of priorities (almost out of the picture for the near future.)

I Greatly Appreciate your reporting!
Hooked
2019 MP3 500hpe Sport
Joined: 03 Nov 2014
Posts: 472
Location: Germany
Wed Sep 16, 2020 9:58 am quote
you should be able to grab the steering rod to feel if there is any play in it. I had my 2019 in the shop, under warranty/guarantee and had it replaced because of play in it. that doesn't require a whole lot of work. just turn the bar left or right and you can feel it.
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