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Getting Frustrated with the wobbles! (Advice plllease)

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  • roadiemort
    commented on 's reply
    Yes lol, that's why we have a search function also. Some folks won't bother looking at an old thread here, opening a fresh thread with your own issues will always get you looked after.

  • Roadhorsen
    replied
    Oh, good tip..Old thread, but keep in mind, people with similar issues, even years down the road will search and read for help

    Leave a comment:


  • roadiemort
    commented on 's reply
    If you click on their profile name it will tell you last time they logged on, 5,6 months have passed on these 2.

  • Roadhorsen
    replied
    If you still have issues, have the tires pull off, and put those wheels on a good balancing stand and check for consistency side to Sid and vertically doing a spin test..you might have a wheel issue

    Leave a comment:


  • Cazwik
    commented on 's reply
    Thanks! It's alot better then what it was but I was thinking of taking it to a yamaha dealer in the next town to do a check over myself! I'll mention that Thanks !

  • LeonW
    replied
    Hey Cazwik, I just ran across your post. I purchased my Roadstar several years ago and wasn't really impressed with the way it handled but just figured it was what it was. It felt a little loose in the frontend. A couple years later when I had the front tire replaced, the mechanic at the dealer told me the collars on the front axle were missing. He installed them and I could definitely tell the difference in the way the bike handled. Since you apparently had the tires replaced by a garage mechanic you may want to check and make sure the front axle got put back properly with all the parts.
    Just a side note, right after I bought the bike I took it to the Yamaha dealer to have the oil changed and the bike checked out. They called and said there was no air filter in the bike. . Go figure! Other than that, the bike was in like-new condition and it's still going strong,

    Leave a comment:


  • HotRod
    replied
    As Shores said above, you need some more miles on the tires to get them scrubbed in completely. I cannot emphasize enough tire pressures in MC tires. 2 pounds can make a huge difference in the way a bike "feels" either good or bad. I would suggest upping your pressures by 2 pounds in each tire, but do it after you have ridden the bike testing all other changes and after you have put some more miles on them. You may find you wont need to after they are broken in.

    Rod

    Leave a comment:


  • brianmac
    replied
    Hey I'm going to second the suggestion to get ride on tire balance and sealant to put in your tires. Good stuff is golden. If you have two tires that are a little out of balance and they spin opposite it will negate the effect but when you drive around town and the imbalances match up the effect will be synergistic and thus more amplified. My brother Kevin the diesel mechanic says where your tires balanced statically or dynamically? Or computer balance etc.

    Leave a comment:


  • Shores
    replied
    You need 200 miles at least on Twisties to scrub the tires in. Feeling unstable is different than wobbly. Are the handlebars shaking? Remove the balancing weights and add Ride On balancing gel per instructions.

    Leave a comment:


  • Brad_G
    commented on 's reply
    I'm no expert but I'd say you probably haven't gotten them broken in yet. Yeah riding to work at 55-60 down the highway was a bit unnerving. I don't remember the exact mileage but it seems to me I was well over 300 miles before I thought it felt good. I do need to service the steering bearings as I know I fail the flop test. So that could have contributed to my issues as well.

    At this point I'd say get out and get some more miles on before you start wrenching things trying to solve this issue. You may find it goes away on it's own.

  • Cazwik
    replied
    So After action report :

    So tonight, I tried something Lug mentioned to me a little while back and I couldn't do because I didn't have the adaptor . I took everything off. Turned the tires on the stand like shores said and didn't see nothing out of the ordinary.
    Lugs mentioned that I may need to try to torque inches instead of feet for accuracy. I went to Harbor freight and got a 3/8 IN > 1/2 adaptor for the special tool. Tightened the steer nut and torqued it to 156 IN pounds. Also picked up a digital torque reader and it was at about 13.7 when ti was said and done. Popped on everything along with the new OEM windshield I got today and did a flop test and seemed very good. I said a prayer, talked to it a little bit , and took it for a spin. Handling off the bat was better. Went on the main road and cranked it , looked down and I was at 70. Didn't feel at all as bad as it did last night. Stopped at a gas station and popped on some dessert dawgs because it was chilly. Road a small highway and popped around a bit and I didn't fear for my life. I still feel a little instability but was alot better. The winds did die down quite a bit to 1-3MPH. Tomorrow I will try it out again and take off the WS to see if I notice anything different. Brad_G I put exactly 250 miles on these tires so far.

    Not sure if I fixed it but I do feel a lot more comfortable riding! Next ill check alignment to make sure all is good there along with the fork spring fluids.

    Thanks for everyone's advise! you guys are great!

    Leave a comment:


  • Cazwik
    commented on 's reply
    Yikes.

  • Cazwik
    commented on 's reply
    Not sure how he balanced , but if I wanted to redo it what would it involve?

  • Cazwik
    commented on 's reply
    I would say maybe 100 miles. Do you think I would need more? Unstable would be the perfect description. Cruising around town is not to bad but I would fear my life getting on I20!

  • Brad_G
    commented on 's reply
    Cazwik how many miles have you put on the new tires and what did you put on? Sorry if you mentioned this already but don't see it/remember. When I put new Michelin Commander IIs on my bike it didn't have what I'd call a wobble, but it definitely felt unstable at highway speed. Mine kind of felt like you were riding on loose rock. It took a few hundred miles before they broke in and felt good. So just wondering if you're seeing this handling from the new tires.

  • Shores
    replied
    Originally posted by Cazwik View Post
    Ill jack it up and give a few spins tonight. To my knowledge there was no wreck. The previous owner bought it trying to to get money out of a resell. The owner before that just never rode much ( that's the story anyway) Looking around it there are no scuffs or big visual stand outs that would lead me to believe it was. For regrease is it simply screwing off the stem neck , taking the package out , regrease and replace? I ordered a service manual and the CD that came in didn't work. Still looking for one =/
    To do top and bottom bearings you need to remove front wheel, remove top tree, remove forks from lower tree and remove lower tree.

    Leave a comment:


  • Cazwik
    commented on 's reply
    Right now it comes above 60mph when i really crank it. . Riding it home I didn't notice anything except a little off steering here and there and I think (which isn't much in this situation) that was because the previous tires were so bad that had an off warped shape from being ridden withour proper PSI. I didn't notice a wobble because I babied it home and took it right in to get tires changed. After that when I started ripping and testing it out is when i noticed the bad wobble at high speeds.

  • Cazwik
    commented on 's reply
    Ill jack it up and give a few spins tonight. To my knowledge there was no wreck. The previous owner bought it trying to to get money out of a resell. The owner before that just never rode much ( that's the story anyway) Looking around it there are no scuffs or big visual stand outs that would lead me to believe it was. For regrease is it simply screwing off the stem neck , taking the package out , regrease and replace? I ordered a service manual and the CD that came in didn't work. Still looking for one =/

  • roadiemort
    replied
    Shock mount welds have been known to fracture on these bikes also.
    Attached Files

    Leave a comment:


  • Shores
    replied
    Originally posted by Cazwik View Post
    So I can start with the most likely. Should I try swapping out those steering head bearings?
    At 6,000k I doubt they are worn out but could possibly be dry or loose. You could lube them with a heavy duty Marine Grease. Was the bike ever wrecked? If you roll the bike forward and slam on the front brakes do the forks seem to compress smoothly? With the bike on a jack and the wheels spinning fast do you see any wobble?

    Leave a comment:

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