| Author | Message | ||
     Ochoa0042 |
my bike is stuck in 4th gear.. WHATS THE BEEF!!!!!!!!!!!!!! im going to let the bike cool down, maybe it will settle itself out before I work on it. but what can be the issue? The shifter linkage isnt stuck up nor down, but it wont move to the next gears in any direction. WTF!!!!! | ||
| Ochoa0042 |
I gave advice to Dtmb that it might be the 'small spring mechanism'.... reading up i think that its just that, Wyckedflesh has picks that I never got for Dtmb I havent taken the bike apart yet, just used badwebs search engine.... thoughts? small springed mechanism  (Message edited by ochoa0042 on July 18, 2009) | ||
| Glitch |
Shifter drum I've seen a few XB12's with just what you're talking about. Turned out to be the shifter drum. | ||
| Ochoa0042 |
took off the primary.. everything seems to be in place, which is just what I didnt want to happen because it means it something worse Glitch, what is shifter drum? and how is this the problem? ~~search function doesnt help much  (Message edited by ochoa0042 on July 18, 2009) | ||
| Glitch |
Looks like this.  The grooves get boogered up sometimes. I believe you have to split the cases. OR It could be the shift dogs. Not sure which is the worst to have... sorry Or on the other hand, it might not be. I'm no mechanic... | ||
| Americanmadexb |
man that sucks, looks like we might lose another player in "The Riding Game". Wish i could help but i have no clue! | ||
| Ochoa0042 |
we'll have to see.. search fuinction tells me that the shifter drum is weak.. first i have to take off the clutch, then the p-chain, an the other thing i cant recall on the other side of the primary.. then 'da book' tells me whats next.... FML! anyone have a picture of how this thing can get deformed because of its 'weak' soft aluminum ness? FML again! | ||
| Reepicheep |
The circle thing with the 5 dots in that first picture is an end view of the shifter drum that is shown in the second picture. The forks and drum on my M2 were massive affairs relative to other motorcycles I have seen. Not sure if they got "leaner" on the XB's. The weak drum thing was that on the tubers, the pins could some times back out and get wobbly. You should be able to inspect the pawl and pins by removing the primary cover, and stator and clutch and primary chain all together as a unit. You will need a primary locking tool (buy or build) and some big freaking sockets. | ||
| Iamarchangel |
On my old Honda, the ends of that bottle opener looking piece, part of the shift lever assemble, became rounded and couldn't grab/push the drum anymore. There was a problem shifting into some gears, then it became harder and then it wouldn't shift at all. It was a slightly different design so the remedy was different (file an undercut instead of replace). | ||
| Ochoa0042 |
how do this thing allow the shifter to get into a bind? whats holding it tight so it wont move? why is it locked, i dont understand.... | ||
| Reepicheep |
If the pawl or the pins get messed up, the shifter moves, it just won't change gears. Is your shifter bound also? If so, its either bent and stuck (I have heard of that as a result of a low side) or the internals are good and stuck. In the old tuber days, it could have been a broken primary tensioner, and the broken steel backplate was wedged somewhere important. Otherwise, it's bad. Something in the cases is "stuck".  | ||
| Ochoa0042 |
i dont know why all of a sudden it didnt want to work.. before it happened i didnt pull any wheelies that day nor any stoppies, but i havent been doing stoppies since like last year.. but none the less the bike didnt go through any out-of-the-ordiunary punishment. a nice ride, luckly it happened when i was on my trip back home no more than 5 miles away from the house. I went way out of the normal routes to the far country, I took the twisty scenic route out to marble falls, and took the express way home going about 60-70mph for a good hour with 45mph city crossing on the way home. everything worked fine. but on the last leg pulling to a stop less than 5miles from home the bike shifted normally down from 5th to 4th gear, and come to think of it I thing the shifter even 'acted' like it went all the way down to first gear but really never got out of 4th gear. man that buell has some good power, stuck in 4th it pulled nicely from a stop  . but what do you make of that, it acted like it was shifting all the way down to first, but never made it down past 4th? is it possible for the drum to go off track like that? ~thanks for reading | ||
| U4euh |
Hey James, lemme say I'm sorry! This has happened to me, twice! The 1st time was with the 984 then 25000 miles later with the 1203. I'm very adament about changing the fluid between 3500-5000 miles in the primary. FIRST TIME-Lost cause didn't want to mess with it(slitting the cases) replaced with a larger motor due to the friendliness of some 3%'s SECOND TIME-2 months ago 400 miles from home, sucks, so I kept on riding it while stuck in 5th gear. I have the 9 primary so it was a little easier from dead stops. THE INTERESTING PART is on the downhill side of a mountain run I let the bike idle all the way down and instinctively went to shift down, and it worked. Don't ask me what popped loose, broke, started working, fell off........I don't know. I put almost 150 miles on the bike stuck in 5th gear then wam bam. Granted I wore the slap outta my clutch, but it was ready for replacement anyway. But two different transmissions, two different motor and the same problem has left a taste in my mouth, still don't know what happened. I do have a transmission for sale if that is the route you decide you need to go. I'll sell it for what I paid. Let me know. | ||
| Reepicheep |
If the shifter still moves, that's better news I think. Hopefully its just an issue with the pawl (not a big deal to fix)... | ||
| Ochoa0042 |
im guessing that these are the pawls n' pins.. and all looks fine; the pawls are, for what i see, normal and have nothing wrong. took out the pins and they all look fine also. I happened to wedge a flathead between the pins to try to rotate the shifter drum.. and couldnt get it to turn either way. (I took off the springs on the pawls before the pick)  | ||
| Reepicheep |
Yup, that's them. Did you wiggle the back wheel when trying to shift? That sometimes helps. A long time ago, shortly after the XB came out, somebody had one of those bolts back out, thoe ones pointing into the case. Make sure they are all torqued down... I have no idea what is behind them in the tranny, so I would NOT be removing them... just making sure they are tight. | ||
| Ochoa0042 |
yes i was turning the wheel (durring the time that i cut a few knuckles trying to get it loose), and got it to turn and backed it all the way to first gear.. 1st seems good, neutral is good, 2nd is good.. was able to turn it in the direction of third, but never got 3rd drive to the wheel, a false neutral. never got past that.. The grooves get boogered up sometimes. I believe you have to split the cases. OR It could be the shift dogs. Not sure which is the worst to have... sorry Or on the other hand, it might not be. I'm no mechanic... what are the shift dogs? are they the things that feed off the the shifter drum to get the transmission's gears into gear? (Message edited by ochoa0042 on July 20, 2009) | ||
| Ochoa0042 |
so the next thing is to split the case.... what am I looking forward into doing to get there? take off the exhaust, remove the oil cooling system.. rotate-or-drop the motor? | ||
| Reepicheep |
No, shift dogs are on the gear pairs on the transmission shaft. When you "replace the second gear pair", you get the new gear and the new dogs. I just split the cases on a 1995 KDX-200 (simple dirt bike). It went better then I expected, but it had some fairly terrifying moments. I still wouldn't have the nerve to do it on a Buell... but maybe it's not much worse... For sure the whole engine will have to come out, and I think the jugs will have to come off as well. Does the front sprocket pulley turn freely when it is in neutral with the belt off? Or is it all crunchy and stuff? | ||
| Ochoa0042 |
na, it turns freely. why? if you talking about the 3rd gear neutralness; it does have a crunchy feel but mostly spins without a hitch fawk! drop the engine AND remove the jugs, that what i'd thought | ||
| Rsh |
There is a complete 2008 XB12 engine on ebay with supposedly 420 miles on it. The buy it now price is $2100.00 http://cgi.ebay.com/ebaymotors/2008-Buell-XB12-ENG INE_W0QQitemZ170358629021QQcmdZViewItemQQptZMotorc ycles_Parts_Accessories?hash=item27aa2a629d&_trksi d=p4506.c0.m245&_trkparms=65%3A12%7C39%3A1%7C72%3A 1171 | ||
| Reepicheep |
I was wondering if that 5th gear drive assembly was coming apart in there... thats what killed my M2 transmission. The symptom was sticking in gear, and the most minor crunchyness turning that output pulley in neutral. Doesn't matter, you will have to split the cases to replace it regardless... | ||
| Groffxb9r |
i bent my shift forks on my 03xb. couldn't get it out of second. complete motor tear down. lucky for me it happened over the winter. its not easy. it will take some time and more than likely you will need more parts than expected. i spent a grand by the time i was done | ||
| Ochoa0042 |
what are the shift forks? you mean pawls, no? | ||
| U4euh |
Just remember IF this is the route you want to go, or are forced to go, I have a replacement tranny. I bought it when the 1st transmission went with anticipation of having to split cases and all the said work above. Another thing you might try also is loosening the final drive nut (belt sprocket)I have heard of someone doing this and trying to put pressure against the wheel all while changing gears. I feel for ya, I've stood in your shoes twice! | ||
| Ochoa0042 |
dropping the engine today, and will take it apart tomorrow to see whats going on with the transmission | ||
| New12r |
I have split the cases on a buell, not that bad but you will need to have a good set of tools. I have U4's old motor, I inspected the trans over and over again and still dont see what caused the lockup. His new one will be a deal I am sure. | ||
| Ochoa0042 |
I think I have found the problem but need a '+1' or a '+2' on the thought I too apart the tranny and everything looks fine, took the shifter drum to the dealer for a second opinion and they too said that it is not the problem.. all the gears look fine and all the dogs are in good shape, but the second gear dogs do look beat up a bit, otherwise all fine I think the problem is one of the shifter forks.. there are 3forks, two of em slide along their path freely, but one of em doesnt, its stuck on the shaft and wont slide.. the Q: are ALL of the shifter forks supposed to move freely from side to side? (Message edited by ochoa0042 on July 24, 2009) | ||
| Ochoa0042 |
ok so it turns out that the rod holding the shifter fork is too bent, preventing the fork from moving heres where the forks is located within the transmission  and heres the bent out •••••  | ||
| Glitch |
Damn man SO sorry. At least now you know, and you're half way there |
