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Old 12-03-2011, 12:00 PM   #57541
Adv Grifter
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Quote:
Originally Posted by LucasLeader View Post
I replaced the seal on the sprocket carrier and the cush drive rubbers, but nothing else. The wheel bearings still seem smooth and tight, the rear sprocket and chain look okay, and I only have about 500 miles on the new 14t front sprocket. To get the bearing out I pried the seal off with a screwdriver, then laid the sprocket on some pieces of 2x4 and hit the bearing out with a hammer and brass punch. To put the new one in I used the old bearing to drive the new one in, and then was able to drive the old one out with the brass punch. Then just pushed the new seal in and used a small piece of wood to tap it in. Oh, and cleaned and greased everything while it was apart. It wasn't too much work except for getting the wheel assembly back in the swingarm. I guess the new rubbers made it a decent amount wider. I'm assuming they'll be compressed by the time I have the wheel off again.
Thanks for the tutorial!
I've replaced my Cush rubbers twice. Both times it makes getting the Hubb and sprocket into the wheel tougher ... which makes getting wheel on harder. I used a mallet to "persuade" it in a bit so it would "seat" all the way. Over time it will resist less and seat better.

But I've found the Cush Drive rubbers seem to wear out in 15 to 20K miles.

Thanks again!
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Old 12-03-2011, 12:22 PM   #57542
kobukan
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Quote:
Originally Posted by Adv Grifter View Post
. . . I've replaced my Cush rubbers twice. Both times it makes getting the Hubb and sprocket into the wheel tougher ... which makes getting wheel on harder. I used a mallet to "persuade" it in a bit so it would "seat" all the way. Over time it will resist less and seat better . . .
It helps to spray the rubbers with something like Aerospace 303 to make everything slide together easier.
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Old 12-03-2011, 01:21 PM   #57543
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Is this part of the NSU assembly?



Ahoy, everyone,

Last time I changed the oil on my 2002 DR650 with ~8000 miles, I installed a magnetic oil drain plug. Today, I found a small, cylindrical steel pin stuck to the magnet. I know there's a spring and some kind of pin behind the NSU (which I haven't messed with so far), but I'm not sure that this thing I found is from behind the NSU. It is 8mm long, and 5mm in diameter (measuring with a ruler).

I dug around in my oil drain pan and found a small lock washer, too. Its inner diameter appears to be 7mm. This could have come from any of 4 or 5 other vehicles over the course of time, but I thought I'd mention it in case anyone recognizes it as coming from inside a DR.

The neutral light has been working fine.

I searched around and couldn't find the photos I know I've seen of what others have found stuck to their magnetic drain plugs. An exploded diagram I found (http://www.imagessite.com/OEM_Images...6DR650SE18.gif) seems to show that the NSU pin is pointed to help it engage the spring (the one I found is not pointed or tapered). Some other parts on the diagram (#s 10 and 22) look a little bit like what I found. Can anyone tell me for sure where this little pin came from?

Thanks!

gumbometer screwed with this post 12-03-2011 at 01:39 PM Reason: Added a detail
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Old 12-03-2011, 01:44 PM   #57544
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looks like the cam pin or a dislodged pin from a previous magnetic plug.
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Old 12-03-2011, 01:56 PM   #57545
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Thanks for the reply.

I'm pretty sure the previous plug was the stock, non-magnetic one. Also, this pin isn't magnetic. If it's a cam pin, does that mean I'm looking at tearing down the top end?

The bike has been running fine. Could it run if a cam pin came out? I don't have a good idea of what everything is in the deep innards, never having had to deal with a rebuild or any really major overhauling.
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Old 12-03-2011, 02:06 PM   #57546
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Thanks to Krusty's DR650 Index, Topic #13:
http://www.advrider.com/forums/showp...2&postcount=32

I found this pic of the NSU screws, pin and spring here, post 11:
http://www.thumpertalk.com/forum/sho...d.php?t=592472

I don't recognize either of the pieces in your photo.

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Old 12-03-2011, 02:23 PM   #57547
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Quote:
Originally Posted by shu View Post
On my bike: Yes.


The only trouble I have with the 'Suzuki method' is that when I check the chain it hits the bottom of the swingarm before it runs out slack. That makes it tough to really measure how much slack it has, there's some guess work involved. Maybe someone here has got this one figured out?

........shu
Loosely hitting the swing arm is what I have been shooting for and it seems to be working pretty good. Chain and sprockets seem to be holding up pretty good. In my younger days I have ruined a new chain pretty quick tightening it up to much.
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Old 12-03-2011, 02:29 PM   #57548
rglee
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Running rough when warm problem

Help! My DR ran perfect with a Supertrapp pipe, K&N, air box side removed and Dynojet kit. Then like someone on the DR forum says, fix it until it's broke, I put a Procycle kit in it, did the CO & UT part of the TAT - it ran a little rough occasionally but overall did great - especially considering the elevation changes. I richened it back up for the low elevation here in Fayetteville, NC, HOWEVER, it was missing or hesitating at around 60 to 70 mph. But it wouldn't start until I'd run at least 15 miles and the DR was completely warmed up. I've tried changing jet sizes, needle position and the slow speed mixture position, then slowly changed everything back to the way it was before I went to the Procycle jet kit. The problem is very consistent - doesn't do it until completely warm, in the lower mid range of throttle opening, and no adjustments seem to make any difference. While it's missing/hesitating I can roll on the throttle and it accelerates perfectly. Has anyone had this particular problem??? Any ideas??? Thanks!
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Old 12-03-2011, 03:30 PM   #57549
Adv Grifter
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Quote:
Originally Posted by Ken E Ahnung View Post


Ahoy, everyone,

Last time I changed the oil on my 2002 DR650 with ~8000 miles, I installed a magnetic oil drain plug. Today, I found a small, cylindrical steel pin stuck to the magnet. I know there's a spring and some kind of pin behind the NSU (which I haven't messed with so far), but I'm not sure that this thing I found is from behind the NSU. It is 8mm long, and 5mm in diameter (measuring with a ruler).

I dug around in my oil drain pan and found a small lock washer, too. Its inner diameter appears to be 7mm. This could have come from any of 4 or 5 other vehicles over the course of time, but I thought I'd mention it in case anyone recognizes it as coming from inside a DR.

The neutral light has been working fine.

I searched around and couldn't find the photos I know I've seen of what others have found stuck to their magnetic drain plugs. An exploded diagram I found (http://www.imagessite.com/OEM_Images...6DR650SE18.gif) seems to show that the NSU pin is pointed to help it engage the spring (the one I found is not pointed or tapered). Some other parts on the diagram (#s 10 and 22) look a little bit like what I found. Can anyone tell me for sure where this little pin came from?

Thanks!
I have no idea what those parts could be ... just be thankful you found them before they got stuck in a trans gear or something

One thought I had was that the pin might be a locator pin on the clutch cover case. Has your clutch side case been off before? When I took mine off ... a pin fell off from somewhere ...??? (long time ago) I think it was a locator pin, but not sure, but somewhere there is a pin that can fall off. Maybe yours was dislodged and fell inside?

Good luck with the diagnosis. More experienced DR mechanics who've been inside may have some better ideas.
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Old 12-03-2011, 03:31 PM   #57550
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ER70S-2, thanks for the link to the index; that should be helpful in the future. Also, thanks for finding that photo of the NSU parts.

I'd almost be relieved if what I had found was from the NSU, because then I would know what I'm looking at. As it is, I'm unsure of how to proceed. This mystery piece doesn't seem to have come from the magnetic drain plug itself, since its diameter is a little smaller than the magnet in the plug, and it is not magnetic (thanks for the idea, Stringer99!).

Anybody have an idea what this little cylinder might be?

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Old 12-03-2011, 03:31 PM   #57551
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Quote:
Originally Posted by asrvivor View Post
Tony

Did you happen to take any pics of that as you were doing it? Thanks
Sorry I didn't but I used http://www.advrider.com/forums/showp...ostcount=47274 which was excellent.

I bought 2 x 15mm x 5mm x 0.8mm pitch allens and they fitted perfectly.

I was lucky and didn't break the gasket so I have one spare if needed in the future.

Someone posted that you could get away without taking the clutch basket apart http://www.advrider.com/forums/showp...ostcount=47251 which would have made the task easier but as I didn't have the right angle screw driver I did the whole basket removal step.

That being said I think I could have used the right size screwdriver at an angle to start the screw under the basket and then worked it out by hand ( remembering to do one side at a time ) and then with a short reach allen key I could have put it all back together with less effort.

Tony
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Old 12-03-2011, 03:39 PM   #57552
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Adv Grifter, thanks for the input. Do you remember if the pin that fell out of your bike looked like the one I found? I take it you didn't find where it came from, but it didn't interfere with your bike's subsequent operation?

I don't think the clutch side cover has ever been off on my bike. The PO hadn't done anything to it but change the gearing and add bark-busters. It only had 2250 miles on it. I am definitely thankful that the magnet caught this little piece before it caused a catastrophe. I encourage anyone who doesn't have a magnetic drain plug to get one.

gumbometer screwed with this post 12-03-2011 at 03:49 PM
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Old 12-03-2011, 03:43 PM   #57553
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That little pin......

Looking at my workshop manual it may be the gear shift pawl pin ( PIN, SHIFT POLE (5X8) 09261-05003 )..... there are also the same sort of pins in the cam driven gear ( both of these have springs behind them ). May also be .PIN, IDLE GEAR NO.2 (L:27) 09202-10006.

That ping in the cover looks like it is hollow from the parts fiche.
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Sydney Rider screwed with this post 12-03-2011 at 04:03 PM
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Old 12-03-2011, 04:36 PM   #57554
ER70S-2
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Quote:
Originally Posted by Sydney Rider View Post
Sorry I didn't but I used http://www.advrider.com/forums/showp...ostcount=47274 which was excellent.

Tony
That's a pretty good link and I got the pic from there.

Quote:
Originally Posted by Ken E Ahnung View Post
Adv Grifter, thanks for the input. Do you remember if the pin that fell out of your bike looked like the one I found? I take it you didn't find where it came from, but it didn't interfere with your bike's subsequent operation?

I encourage anyone who doesn't have a magnetic drain plug to get one.
mx_rob: (about interfering with operation)
"One point though on the screw just gently falling out and settling on the bottom. The hurricane turbulence of the clutch basket and gears in the oil can easily sweep the screw up into places that would be a major bummer for it/them to be."

The top left locating pin stayed in the clutch cover.
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Quote:
Originally Posted by Threewheelbonnie View Post
"BTW, I don't do style. It's a dirt bike, not some girlie dress-up thing." -
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Old 12-03-2011, 04:50 PM   #57555
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Quote:
Originally Posted by ER70S-2 View Post
The top left locating pin stayed in the clutch cover
So the locator pin is hollow - so I think it must be one of the others.
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