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Old 03-12-2013, 01:13 PM   #74641
Novgorod
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Hello DR650'ers. I don't have one yet, but I am thinking about buying a used one I found for sale. I was wondering if someone could give me an idea on how much power they have, with a TM40 Mikuni and GSXR exhaust? I don't mean numbers, but by the seatofyourpants dyno. Also how well do they run at very low speeds through sticky stuff?
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Old 03-12-2013, 01:15 PM   #74642
motolab
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Quote:
Originally Posted by Adv Grifter View Post
Those links don't reveal specifics regards mods to individual bikes. Did they all have Open Air Boxes? And what jetting did they have? State of tune/condition of the bikes? In most cases pinging results from the owner either lugging the bike ... or doing a poor job of tuning/jetting/mods.
Previously, you said, "Hundreds of DR riders have opened the air box with no hint of detonation ... or any other problems.". Now you are asking about state of tune. They either had opened airboxes or not. If so, then the pinging could have been brought on by the opened airbox. If not, then the situation would be worse once the airbox was opened up.
Quote:
Also, in some cases the owners are literally "hearing things" ... and don't really know what Pinging, Detonation sounds like. A flopping chain can fool a lot of riders.
I'm not sure how you can argue that hundreds of DR riders are astute enough to know for a fact that their engine is not suffering from detonation, while simultaneously being capable of hearing things and not really knowing what pinging and detonation sound like.
Quote:
But are you saying stock compression is too high to handle the open air box mod?
I said no such thing. I said you want to be sure that it is not.
Quote:
And timing may be too advanced to handle it?
Again, I'm saying that you want to be sure that it is not.
Quote:
If that was the case then, IMHO, we'd have many more reports of severe detonation from guys who'd opened up the Air Box.
We have at least seven reports in the links. It can be quite harmful well before it is audible, and it is possible for it to happen without being aware that it has.
Quote:
Do you believe my bike would have made it to 50,000 miles? ... mostly all on regular gas ... if severe detonation, or even MINOR detonation existed I would think my piston would be toast ... and bits of Alu would have shown up on my plugs before that.
One of the first things that happens is that the severe pressure rises on top of the piston cause the oil film between the wrist pin and its bores to fail, leading to galling. Another is that the pressure waves punch through the vapor barrier, leaving the oil film on the cylinder wall unprotected from normal combustion (much less uncontrolled combustion), causing it to burn off. The severe pressure rises present during detonation simultaneously push the rings into the cylinder wall much harder than normally, which cause cylinder wall and ring scuffing. Your bike could have made it 50,000 miles with detonation. The piston does not have to be destroyed as a result, nor do bits of aluminum have to appear on the spark plug.
Quote:
I have no Dyno Charts. But maybe you can share with us any Dyno Charts you've done ... in your shop .... on customer bikes?
See http://www.moto-lab.com/gallery/search. Select "graphs" from the category drop down. Select a make model and year, and/or key words.

Regards,

Derek
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Old 03-12-2013, 01:22 PM   #74643
Rusty Rocket
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Quote:
Originally Posted by sandwash View Post
There is a bolt/plug on the stock muffler,undo it for a few.
mine got knocked off. probably by a rock coming off the Kenda TrakMasterII. It is an epoxy patch now.

Quote:
Originally Posted by MADurstewitz View Post
Try back-blowing your spark arrestor. If it's not done for a long time, carbon deposits build up and come out like light blue oil smoke, but with a funny (not oil) odor.
that's probably what it is. I hadn't even thought of that. That's why I hang around here.

maybe I'll put the SuperTrapp back on and see if it still happens.
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Rusty Rocket screwed with this post 03-12-2013 at 01:27 PM
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Old 03-12-2013, 01:37 PM   #74644
rand0mlychrisUK
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Quote:
Originally Posted by Rusty Rocket View Post
Those RSE's are pretty cool and maybe worth having.

An RSE is exactly what I am looking at, a '93 RSEU to be more exact. I'm on a budget and it looks perfect for my needs (mostly asphalt, a tiny little offroad). Also, since I am mostly going asphalt, then the 50lbs might not be so bad for me, and the fairing might come in useful. Also, I understand the pre96 models have a little more torque, which may be useful for around town.
What about the mechanical differences? People talk about the chain counterbalancing system being terrible, I have no idea or experience.
Thanks for the answer, hope to get a little more insight from you guys.
Thanks, Chris
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Old 03-12-2013, 01:47 PM   #74645
Rusty Rocket
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Quote:
Originally Posted by rand0mlychrisUK View Post
An RSE is exactly what I am looking at, a '93 RSEU to be more exact. I'm on a budget and it looks perfect for my needs (mostly asphalt, a tiny little offroad). Also, since I am mostly going asphalt, then the 50lbs might not be so bad for me, and the fairing might come in useful. Also, I understand the pre96 models have a little more torque, which may be useful for around town.
What about the mechanical differences? People talk about the chain counterbalancing system being terrible, I have no idea or experience.
Thanks for the answer, hope to get a little more insight from you guys.
Thanks, Chris
I don't know if you can get a KLR 650 where you are, but here in the U.S., it would be a better choice. They were the same for 20 years leading up to 2008 when the changed the body. It's electric start and I believe the Suzuki is kick start. It looks a lot like a KLR at first glance too. Accessories are much more available for the KAW. Maybe in Europe the RSE was more widely available.

Ask here:

http://www.advrider.com/forums/showthread.php?t=61568

These guys will know a lot more about the engine at least.

The 1996 and newer DR650 is easier to get parts and accessories for also. Unless you are determined to have that bike, you will likely be better off with a new generation DR or a KLR.
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on one side the sign it said "Private Road", but on the other side it didn't say nothin'
2009 DR650
..1972 Penton Six-Days ..1971 Suzuki TS185.. 2005 KTM 400exc
Member of: AMA, NETRA, Blue Ribbon Coalition, CCCofVT, Berkshire TR, CT Ramblers
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Old 03-12-2013, 02:22 PM   #74646
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Quote:
Originally Posted by motolab View Post
See http://www.moto-lab.com/gallery/search. Select "graphs" from the category drop down. Select a make model and year, and/or key words.
In the Suzuki category - DRZ400, 1500 Intruder, 1200 Bandit, GXSR750, GSX1100, C50 Boulevard.

No DR650.
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Old 03-12-2013, 03:11 PM   #74647
motolab
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Quote:
Originally Posted by procycle View Post
No DR650.
I've already said many times that I have not tuned one.

Regards,

Derek
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Old 03-12-2013, 03:13 PM   #74648
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yo Russ,

Quote:
Originally Posted by Rusty Rocket View Post

Thing is, my Penton has been hiding in the basement and only comes out every 5 years or so for a vintage event. The TS185 needs to be cleaned up an made running (been gonna do that job for about 5 years now)

I figure if I sell them to raise some cash, I could add a bike that i will actually use.
Russ, if you ever sell that Penton w/o giving me first cut, I will come up there and beat you with a 2x4!
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Old 03-12-2013, 03:28 PM   #74649
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Quote:
Originally Posted by ER70S-2 View Post
When I go from a 15t to a 16t, it raises my comfortable cruising about 8 mph; from 67-8 to 75.

I'm guessing 14t to 15t will be about the same, from whatever speed you're willing to run the 14t.
I like to run mine to turn over just a little faster than you do, ER70S-2. I find cruising on the freeway at about 75 (GPS speed, almost 80 on the speedo) is comfortable with the 15T stock sprocket.

With the 14T I prefer to go 67-68 GPS (73 speedo).

I just did several back to back highway days on my way south at 70-75 all day. It always surprises me how smoothly and stably the DR650 does on the big roads doing moderately high mileages. Gotta love this bike.

.............shu
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Old 03-12-2013, 03:31 PM   #74650
TeeVee
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Quote:
Originally Posted by MADurstewitz View Post
Try back-blowing your spark arrestor. If it's not done for a long time, carbon deposits build up and come out like light blue oil smoke, but with a funny (not oil) odor.
not sure there is one on my gxr can. or are you referring to some other spark arrestor?

bike ran fine in november, and started with no trouble at all in january, although i did not ride it in january.

also, it may be possible that the oil is contaminated with fuel. read on thumpertalk that if the fuel valve leaks while in the on position, fuel can contaminate the oil. well, when i pulled the tank off the other day, i noticed that the fuel valve was leaking. SHYTE! leaving things as is always leads to problems, eh? guess, i'll be changing the oil and filter too.
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Old 03-12-2013, 03:39 PM   #74651
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another piece of the puzzle to make sure this is done right.
-adjust the chain properly and make sure the left and the right side adjuster cams are on the same notches.
-then mark the left drive side with a marker at that notch so you can get back in a flash with tire chains
-then check the alignment of the chain & sprockets
http://www.motorcycle-superstore.com/14/71/995/4876/ITEM/Motion-Pro-Chain-Alignment-Tool.aspx?SiteID=Google_PLA995&WT.mc_ID=10012&esvt=0-GOUSC&esvadt=9-0-3886819-1&esvaid=30548&kw={keyword}&gclid=COvPzOWe-LUCFaUWMgodSFQAoA
this tools clamps to the rear sprocket and you look down the rod to the front of the bike/front sprocket. it must be parallel with the chain
-if not the sprockets are not aligned and will wear out the chain faster.
adjust the right ride adjuster to align properly. the left stays the same as that's for proper slack. the right side aligns. mine was off 2 slots.

Quote:
Originally Posted by ER70S-2 View Post
Obard:
Use a ratchet strap across the seat to get the 3 points aligned like BD's diagram. Pad the seat so the strap doesn't cut the seat cover. The bike will roll with the suspension pulled down (strapped), so check the tightness in several places.

When you're doing this, the chain slack will NOT be 1.2"-1.8". You just want free movement (no binding). And too loose is better than too tight!!

Be careful, as the kickstand might be too long and tip the bike over on the right side.

Like this (my shock is disconnected in this pic, don't pull it down this far).

Better pic, pulled down too far:
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Old 03-12-2013, 03:51 PM   #74652
Rusty Rocket
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Quote:
Originally Posted by spanker View Post
Russ, if you ever sell that Penton w/o giving me first cut, I will come up there and beat you with a 2x4!
I'll wait till you move to FL so it'll cost you more to make the trip to beat me.
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on one side the sign it said "Private Road", but on the other side it didn't say nothin'
2009 DR650
..1972 Penton Six-Days ..1971 Suzuki TS185.. 2005 KTM 400exc
Member of: AMA, NETRA, Blue Ribbon Coalition, CCCofVT, Berkshire TR, CT Ramblers
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Old 03-12-2013, 04:47 PM   #74653
Tex76
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Anyone marked off their IMS tank? I have a clear tank and was wondering if a regular sharpie would stay on there.
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Old 03-12-2013, 04:56 PM   #74654
ER70S-2
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Quote:
Originally Posted by shu View Post
I like to run mine to turn over just a little faster than you do, ER70S-2. I find cruising on the freeway at about 75 (GPS speed, almost 80 on the speedo) is comfortable with the 15T stock sprocket.

With the 14T I prefer to go 67-68 GPS (73 speedo).

I just did several back to back highway days on my way south at 70-75 all day. It always surprises me how smoothly and stably the DR650 does on the big roads doing moderately high mileages. Gotta love this bike.

.............shu
Hi Shu:

My numbers are GPS, I should have mentioned that for the inmates and edited my post to add that info. The GPS is my favorite electronic toy, I only use the stock speedo for total mileage and reset the odo at each gas fill.

I hope your trip continues trouble free. At least the failure happened close to the border. (BMW not the DR for those that missed it earlier).

It got all the way up to 38* here today.
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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 03-12-2013, 05:21 PM   #74655
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Quote:
Originally Posted by Tex76 View Post
Anyone marked off their IMS tank? I have a clear tank and was wondering if a regular sharpie would stay on there.
Since the IMS has a glossy finish, I'll be curious to know if it does stay marked. I just got a natural color Acerbis which has a matte finish. I think it's going to keep every finger print I put on it. I mark the magazines for my XDM with a Sharpie and they need refreshing on occassion.

Are you going to mark it with the bike vertical or on the sidestand?
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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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