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Old 06-28-2012, 10:14 AM   #4681
G600
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Joined: May 2009
Location: Iceland
Oddometer: 425
Quote:
Originally Posted by SuperTimmy View Post
Hello everyone!
First time posting on here. I have been reading this thread for about a two months-about as long as I have had my XR. Lots of great information on here! It's a 2001 XR400R. This bike is a blast! I live in Eastern NC, so if anyone is near Wilmington, let's get together!
Here is a photo of my bike:


Does anyone know where I can get an acerbis front disc guard and fork guards in white? I currently have black on there that came with the bike. I've been looking for a good bit now! I appreciate any leads!

Happy Riding.

~SuperTimmy
Hi and welcome. Nice looking bike. Like the rack, did you make it?
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Old 06-28-2012, 10:54 AM   #4682
Luke
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Originally Posted by KilLeR Kawasaki View Post
I understand the basics of a four stroke engine. I was thinking that if the head cover is off, the rocker arms and timing would all be taken out the equation.

Is there an XR400 - head rebuild - guru in the Denver area?

Tthe rockers come off with the head cover, so the valves don't move and you can't do a regular compression test. There's no way to pull air in on the intake stroke to compress. It's a good way to do a leakdown test, though.
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Old 06-28-2012, 03:41 PM   #4683
SuperTimmy
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Originally Posted by G600 View Post
Hi and welcome. Nice looking bike. Like the rack, did you make it?

Thanks! The rack is a Moose Racing rack. I ordered it for $149 through revzilla. I have a surfboard rack that attaches to it. It's a nice rack! I highly recommend it to anyone looking for a rack for their XR400!
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Old 06-29-2012, 07:23 PM   #4684
creedyflyr
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New Facelift after destroying a rear Hub near the end of a 500KM ride.The Brake disk side bearing failed & it cracked the Hub in 2.
Got hold of some cheap SM Pro wheels of an XR650R & converted the rear to suit the 400. Front was a sraight swap.

I'm retiring the XR from Adventure duties & getting a new KTM 690 Enduro for that sort of riding. I'll keep the XR for the tight stuff.
Creedy.
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Old 06-30-2012, 03:03 AM   #4685
G600
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Originally Posted by creedyflyr View Post
New Facelift after destroying a rear Hub near the end of a 500KM ride.The Brake disk side bearing failed & it cracked the Hub in 2.
Got hold of some cheap SM Pro wheels of an XR650R & converted the rear to suit the 400. Front was a sraight swap.

I'm retiring the XR from Adventure duties & getting a new KTM 690 Enduro for that sort of riding. I'll keep the XR for the tight stuff.
Creedy.
What did you have to do to make the rear wheel fit? Spacers only? Is the hub the same on both bikes, or just the brake disk to sprocket space?
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Old 06-30-2012, 04:23 PM   #4686
creedyflyr
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Quote:
Originally Posted by G600 View Post
What did you have to do to make the rear wheel fit? Spacers only? Is the hub the same on both bikes, or just the brake disk to sprocket space?
The 650R uses a thicker rear Axle so some different bearings & seals are needed.
Here is a list of parts I used:

1 x 91205-950-003 OIL SEAL 25X42X7 (From a Honda Fourtrax 4x4 Steering Stem)
1 x 91253-033-003 OIL SEAL,25X47X6.5 (Standard XR400 rear wheel seal)
1 x 91003-KRM-841 BRG,BALL RADIAL (from Honda CRF150F Transmission)
1 x 6303 ball bearing. (Generic size bearing)
4 x 90113-MAC-780 ( These Bolts along with 4 washers are needed to fit the XR400 Rotor on the XR650 Hub)

Creedy.
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Old 07-01-2012, 04:45 AM   #4687
G600
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Quote:
Originally Posted by creedyflyr View Post
The 650R uses a thicker rear Axle so some different bearings & seals are needed.
Here is a list of parts I used:

1 x 91205-950-003 OIL SEAL 25X42X7 (From a Honda Fourtrax 4x4 Steering Stem)
1 x 91253-033-003 OIL SEAL,25X47X6.5 (Standard XR400 rear wheel seal)
1 x 91003-KRM-841 BRG,BALL RADIAL (from Honda CRF150F Transmission)
1 x 6303 ball bearing. (Generic size bearing)
4 x 90113-MAC-780 ( These Bolts along with 4 washers are needed to fit the XR400 Rotor on the XR650 Hub)

Creedy.
Thanks Great info..
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Old 07-03-2012, 06:10 PM   #4688
PCK_4xCustoms
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I'm intending to drop my rear sprocket from the stock 45 to 42 or maybe lower for road riding so I can drop my RPM's at 50-60.
BUT, I cant seem to find a source for any lower than 45/stock. Then again my searches have been specific to the xr4.


sooooo, what else works for this bike? looking for steel and cheap
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Old 07-03-2012, 06:35 PM   #4689
Dexter2811
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Supersprox has a 42t sprocket for XR400

and this http://www.ebay.com/itm/JT-Rear-Stee...d2959c&vxp=mtr is my first search for "Sprocket XR400" on ebay
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Old 07-03-2012, 06:59 PM   #4690
Ed@Ford
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Quote:
Originally Posted by PCK_4xCustoms View Post
I'm intending to drop my rear sprocket from the stock 45 to 42 or maybe lower for road riding so I can drop my RPM's at 50-60.
BUT, I cant seem to find a source for any lower than 45/stock. Then again my searches have been specific to the xr4.


sooooo, what else works for this bike? looking for steel and cheap
I use a 16 front countershaft sprocket with the stock 45 rear...no need to lengthen chain....but you loose the little crankcase protector....I think it was a premium renthal sprocket
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Old 07-03-2012, 07:36 PM   #4691
PCK_4xCustoms
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yeah i run a 16/45 right now but I odnt like the buzzing whine of the high R's at 50-60

seems a bit high at that point
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Old 07-03-2012, 08:17 PM   #4692
KilLeR Kawasaki
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Posted at Thumpertalk

Thought I'd cross post here in case anyone can answer any question authoritatively. Wondering about the Cam Shaft Plunger and whether that may have been missing all alone and causing the low compression issues. The link goes to Thumper Talk.
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Old 07-03-2012, 08:35 PM   #4693
mookybird
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I bought my Sunstar steel 39 tooth sprocket from Motosport, service was great. Part # SS-SR-3559-39

I don't have a tach and can't provide numbers but it cruises nicely at 60 with the 16 on front and is still workable for easy trail riding by swapping to the 13 tooth.
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Old 07-03-2012, 10:50 PM   #4694
Czechsix
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I'll verify when I get home, but I think I found my steel 42 at rocky mountain atv.
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Old 07-04-2012, 12:23 AM   #4695
Luke
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Quote:
Originally Posted by KilLeR Kawasaki View Post
Thought I'd cross post here in case anyone can answer any question authoritatively. Wondering about the Cam Shaft Plunger and whether that may have been missing all alone and causing the low compression issues. The link goes to Thumper Talk.
The plunger is supposed to catch on the thing on the cam that prevents kickback and keep it in a particular position. Since the anti-kickback mechanism works by releasing the compression, that plunger is pretty suspect.
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