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Old 10-26-2013, 05:32 PM   #18376
brayjay
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Quote:
Originally Posted by mitchn06 View Post
i would say if your carb is as dirty as it is along with the smoking, then yes you probably are due for a head job, possibly rings, and take a good look at your air filtration system, because that's is the root cause of the problems.
I did notice that inside of the air box had some dust in it. It had a k&N in it. This bike looks almost new, hard to believe the valves and rings are gone already. I guess maybe it got dusted then. One other thing is when I look inside the cylinder the top of the piston is shiny clean and wet looking. If it was burning oil would it not be caked with carbon?
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Old 10-26-2013, 05:36 PM   #18377
mitchn06
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Quote:
Originally Posted by brayjay View Post
I did notice that inside of the air box had some dust in it. It had a k&N in it. This bike looks almost new, hard to believe the valves and rings are gone already. I guess maybe it got dusted then. One other thing is when I look inside the cylinder the top of the piston is shiny clean and wet looking. If it was burning oil would it not be caked with carbon?
it is very much a no no to run these bikes with K&N filters. go get yourself a replacement foam filter. I have yet to use my NoToil filters with the biodegradable oil, but i know that cleaning the filter with the other type of oil was a PITA. i'm sure others will chime in on the subject.

As for piston, that is peculiar. I have no answer.
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Old 10-26-2013, 05:45 PM   #18378
brayjay
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Quote:
Originally Posted by mitchn06 View Post
it is very much a no no to run these bikes with K&N filters. go get yourself a replacement foam filter. I have yet to use my NoToil filters with the biodegradable oil, but i know that cleaning the filter with the other type of oil was a PITA. i'm sure others will chime in on the subject.

As for piston, that is peculiar. I have no answer.
I knew about the K&N filters letting dust in. Bought this bike sight unseen. The carb was not dirty from dirt or sand but from old gas. The float , main jet and pilot jet were green colored This bike has been sitting for a while. I have an 06 650r that runs perfect to compare to and the piston does not look shiny clean. Makes me think it is being washed by too much fuel maybe. I am almost certain if it was burning oil the top of the piston would be black. Blown head gasket? There is no oil in the rad or water in the oil; though. If I do end up needing a top end rebuild anyone have any recommended shops to do the head? Precision Concepts? XRs only?

brayjay screwed with this post 10-26-2013 at 06:35 PM
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Old 10-26-2013, 06:33 PM   #18379
Oddfellow
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Location: Austin, Texas
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Quote:
Originally Posted by drdfblackm View Post
Anyone know of parts source for Edelbrock Quicksilver carbs. I need a few things. Any help would be greatly appreciated. Thanks.
The problem is you can't find parts. You can still find whole carbs, just not parts. Mine is sitting in a file drawer waiting on the secret cache to be found. In the meantime I'm using a Mikuni TM-40 pumper from Powerbarn. Came set up close and don't miss the Eddy much, except when I'm going from Texas to Colorado!
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Old 10-26-2013, 07:22 PM   #18380
5hortbus
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Reputable suspension shop/guy in Chicagoland.

I need to add my big guy springs to my ride and possibly valving for the forks and Shock. 230 lbs plus bigger tank, etc. requires it.

Health prohibits me from doing it myself in the cold. Wife has nixed the work in the house idea. So, I need to have someone else handle my "winter project".

Trying to keep the work local, if possible. I corss posted in the regional forum to see if something pops there. But, I figured the XR experience couldn't hurt.

Thanks.
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Old 10-26-2013, 08:19 PM   #18381
bamfslap
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Quote:
Originally Posted by KustomizingKid View Post
Took my Xr offroad for the first time on a trail ride, mixed single track and open trails. And my left radiator cracked :/

Unibiker gaurds, hodakaguy brace and Acerbis tank and I still cracked a radiator.
I've ate shit many of times, hardcore. Got a blow out and wiped out in a race (damn near broke my ribs, felt like it!), bounced down descending a hill climb, and endo'd on a huge jump at the MX track (freaking arm pump)*. My og rads are still good. But I've always had the Clarke 4.3. Seems like the Acerbis likes to crush rads. Is the 4.3 not an option?

*over about 5 years, I don't have THAT bad of luck :P

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Old 10-27-2013, 02:35 AM   #18382
digga1111
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I read somewhere that xrs only does a rear brake cooler bvut can't find one in their cattledog. does one exist and do you have a picture of one or some thing like it?
Cheers
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Old 10-27-2013, 03:13 AM   #18383
MCVL
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Quote:
Originally Posted by drdfblackm View Post
Anyone know of parts source for Edelbrock Quicksilver carbs. I need a few things. Any help would be greatly appreciated. Thanks.
There are needles and throttle cables here, but if you need anything else, you'll probably have to make it
http://stores.ebay.com/ATV-Galaxy/_i...4.l1581&_pgn=1
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Old 10-27-2013, 04:25 AM   #18384
QDogg
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Quote:
Originally Posted by mitchn06 View Post
i would say if your carb is as dirty as it is along with the smoking, then yes you probably are due for a head job, possibly rings, and take a good look at your air filtration system, because that's is the root cause of the problems.
Funny, I have the same problem.
About 2000kms ago, I installed new piston, rings, valves/guides/seals, cam chain, stage 2 cam etc and has been running sweet as.
Until just recently, has started blowing a bit of smoke when cold. Goes away when it's warmed up...valve clearances checked and fine.
Still scratching my head on this one too
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Old 10-27-2013, 06:48 AM   #18385
brayjay
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Quote:
Originally Posted by QDogg View Post
Funny, I have the same problem.
About 2000kms ago, I installed new piston, rings, valves/guides/seals, cam chain, stage 2 cam etc and has been running sweet as.
Until just recently, has started blowing a bit of smoke when cold. Goes away when it's warmed up...valve clearances checked and fine.
Still scratching my head on this one too
I wish mine was just smoking a little, it's like how my old 81KX420 smoked at 25/1 ratio. The thing about mine is why top of the piston looks washed and wet, and not black and caked with carbon.

brayjay screwed with this post 10-27-2013 at 06:53 AM
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Old 10-27-2013, 04:34 PM   #18386
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Quote:
Originally Posted by SkidMark:-) View Post
Hi there,

Trying to make that tricky decision of what tank bag....anyone got a pic of a XR650R with a Wolfman Enduro tank bag mounted - preferably with a acerbis or IMS 7G tank.

Or can someone point me to a thread with one already in it - did search but there is soooooomuch info on this site I couldn't find one after 30mins searching

Cheers
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You'll hate it. Giant look is way better. Much better for riding. The wolfman or any style like that is too impeding on riding.

I bought the expidition and sold it right after looking at it. No complaints on the giant loop. 30,000km
riding with it.
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Old 10-27-2013, 07:49 PM   #18387
lstzephyr
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Anybody need a stock carb? I've tuned my tm40 to the point that I am confident I'm not going back to my stock carb. The stock carb is clean and was drained after removing but it could probably use a cleaning. I have a spare body too as well as a good selection of jets. If anyone wants it send me a pm, otherwise I'll toss it on ebay. I figured I would offer it here first and I want it out of my way!
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Old 10-27-2013, 11:59 PM   #18388
OR Trail
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Here is a solution for this issue that I am trying out. The bottom guard is from Manracks - bolts right on with existing hardware and quite sturdy. The stick-on cover is from Advanced Motorcycle Products.








Quote:
Originally Posted by bigtrailie View Post
Mine is set up the same way....but here's the problem. One time, I hit something. Something hard. At high speed. With the underside of my brake pedal. The result was a small hole punched into the bottom of the clutch cover. I can't push up on the brake pedal and make the two connect, but wtih enough force (and aparently speed), the brake pedal will bend enough so that the inboard corner of the top of the brake pedal will make contact with the clutch cover and punch the small hole. I only found the hole because a fine coating of oil-dust-grime was collecting in the area. I couldnt find the hole until I layed down on the ground and looked up..."Oh, so THAT'S where the oil is comming from". It was an easy patch with some JB Weld, but I'd prefer not to go through this again. Any suggestions? (other than not hitting hard things at high rates of speed?)
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Old 10-28-2013, 10:51 AM   #18389
DR-Zamboni
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choke plate fail



Anyone seen that flap on the choke plate look like this before?

My friend bought the bike 2 days ago, and when we pulled the carb to check the jet sizes we saw this. Carb functions fine but this definitely is cracked right down the middle. I think the flap functions as some sort of enrichment for starting
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Old 10-28-2013, 11:01 AM   #18390
crypto666
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Joined: May 2011
Location: The best trails in Nevada
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I think the flap was designed to open in case of back-fire, and uh, perhaps prevent the choke plate from blowing apart? Good to see it works as advertised. Someone got lucky because it didn't kill the motor.

Remove it and trash it, it works without the plate. Many are removed to prevent the screws from coming loose and gettting ingested.

Quote:
Originally Posted by DR-Zamboni View Post


Anyone seen that flap on the choke plate look like this before?

My friend bought the bike 2 days ago, and when we pulled the carb to check the jet sizes we saw this. Carb functions fine but this definitely is cracked right down the middle. I think the flap functions as some sort of enrichment for starting
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