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Old 05-30-2011, 03:49 PM   #3481
huckleberry
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was hopeing some one could tell me if the pivit works brgs are as good as stock stuff. I need some wheel brgs and shock brgs and the pivit works stuff is less expensive.
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Old 05-30-2011, 03:58 PM   #3482
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I've used them with no problems. would defently use them again.
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Old 05-30-2011, 04:14 PM   #3483
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I've got the pivot works and all balls bearings throughout the bike. Can't tell a differance, only time well do that. they've been on the bike for about 1 1/2 years so far. Pivot bearings in the linkage for about 3 years now.
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Old 05-31-2011, 08:13 PM   #3484
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Hey guys, I'm still looking for a stock tank. If anybody has a decent take-off sitting in the garage please PM me.
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Old 05-31-2011, 08:59 PM   #3485
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Craigslist

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Originally Posted by grub View Post
Hey guys, I'm still looking for a stock tank. If anybody has a decent take-off sitting in the garage please PM me.

Check the Denver, Boulder, or Ft. Collins Craigslist.
I'm pretty sure I seen one on there today.

Edit: Here's the link: http://denver.craigslist.org/mcy/2412552503.html
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Old 06-01-2011, 04:47 PM   #3486
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Quote:
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Hey guys, I'm still looking for a stock tank. If anybody has a decent take-off sitting in the garage please PM me.
There is a nice White one over on TT right now.
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Old 06-01-2011, 08:30 PM   #3487
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Quote:
Originally Posted by J. Quest View Post
Check the Denver, Boulder, or Ft. Collins Craigslist.
I'm pretty sure I seen one on there today.

Edit: Here's the link: http://denver.craigslist.org/mcy/2412552503.html
Quote:
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There is a nice White one over on TT right now.
Thanks, for the help. Found just what I was looking for.
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Old 06-02-2011, 06:15 PM   #3488
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Installed the revloc dynaring last friday night, played with the adjustment on Saturday for a couple of hours and rode 40 miles of trails on Sunday.

I think autoclutch is the wrong way to describe it, for you old schoolers like me think of it like a torque converter - so much nicer and smoother in the rocks. If you don't ride trails you don't need it but boy does it shine in the tight, steep and nasty.
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Old 06-05-2011, 09:53 AM   #3489
Davidjohnson
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Jetting for Colorado

Still need some help from the Colorado'ans

What main and what pilot is a good all around Colorado set-up? Ride primarily Taylor Park, CB area. The bike is a '98 which is the year the factory set-up was 142 and 52. It currently has a 145 main in it. Not sure about the pilot since I have not pulled the bowl off yet. Bike is currently jetted for sea-level. Only modifications the previous owner was aware of is removed snorkel, added uni filter, and he said it has an XR250 spark arrestor (the chrome insert). He said the XR250 insert (not sure which year) had a larger opening than the '98 and later 400s and that was a common mod. You guys ever heard of that? Anyway, the bike is basically stock.

The mtc book gives a correction of.92 for 6500 ft and 85 degrees F., that would make for a 133 main. The book says turn in the pilot 1/4 turn for corrections greater than .95. What do ya'll think? What's the best recipe
for this '98 model?

Thanks
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Old 06-06-2011, 07:26 AM   #3490
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DJ, the go to jetting for a stock carbed XR4 @ sea level is 160/60, although mine has been Mikuni'd for a long time, I would suggest 150/55 as a starting point for that alt, fuel screw as needed, prob around 1.5 to 2 turns out. Others with Co/NM experience will probably chime in. Good luck.
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Old 06-06-2011, 10:02 AM   #3491
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Just picked up a 02 XR400R, plated with a baja kit and big tank

Problem is, it is running a bit rough and idle's kinda weird.

Any XR gurus out there have a few minutes to talk and give me a few hints at troubleshooting?

Thanks in advance
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Old 06-06-2011, 11:16 AM   #3492
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jetting

"DJ, the go to jetting for a stock carbed XR4 @ sea level is 160/60, although mine has been Mikuni'd for a long time, I would suggest 150/55 as a starting point for that alt, fuel screw as needed, prob around 1.5 to 2 turns out. Others with Co/NM experience will probably chime in. Good luck."


Can someone help me with why the 97 and earlier bikes had larger jets than the post 97? My 98 came from the factory with a 142 main and I believe the 97 came from the factory with a 155 ?. My 98 is currently jetted with a 145 and seems spot on for sea level; thats a far cry from a 160. Sorry for the rant, I'm just trying to understand the baseline differences.

David
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Old 06-06-2011, 11:30 AM   #3493
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Quote:
Originally Posted by Davidjohnson View Post
"DJ, the go to jetting for a stock carbed XR4 @ sea level is 160/60, although mine has been Mikuni'd for a long time, I would suggest 150/55 as a starting point for that alt, fuel screw as needed, prob around 1.5 to 2 turns out. Others with Co/NM experience will probably chime in. Good luck."


Can someone help me with why the 97 and earlier bikes had larger jets than the post 97? My 98 came from the factory with a 142 main and I believe the 97 came from the factory with a 155 ?. My 98 is currently jetted with a 145 and seems spot on for sea level; thats a far cry from a 160. Sorry for the rant, I'm just trying to understand the baseline differences.

David
I suspect is was emissions: both noise and smog. Semi-educated guess: '98 was the first year that CA had smog rules for dirt bikes. There may have been some federal things too. The stock 97 jetting was 162/62, which was a tiny bit rich. This was done (according to the manual) so that the owner would get the best power after pulling the exhaust baffle and intake snorkel without rejetting. For '98+, the exhaust baffle was fixed, so smaller jets would be appropriate. The unbaffled '97 exhaust wouldn't pass sound check in CA so they made the baffle non-removeable ( I don't know about the national rules at the time, but it won't pass current USFS levels)
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Old 06-09-2011, 11:19 AM   #3494
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Price check on aisle 4...

1998 XR400R - Clean, already tagged in Arkansas. Seat is intact, but the tank was painted black and is peeling. Also needs a rear tire and a mirror.

Needs some work on the headlight wiring, but all the parts and pieces are in place, except for a mirror.

He's asking $1800.00. Good price?

http://fayar.craigslist.org/mcd/2427868949.html

Thanks.

Mike
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Old 06-09-2011, 03:38 PM   #3495
Trailryder42
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Quote:
Originally Posted by Davidjohnson View Post
Still need some help from the Colorado'ans

What main and what pilot is a good all around Colorado set-up? Ride primarily Taylor Park, CB area. The bike is a '98 which is the year the factory set-up was 142 and 52. It currently has a 145 main in it. Not sure about the pilot since I have not pulled the bowl off yet. Bike is currently jetted for sea-level. Only modifications the previous owner was aware of is removed snorkel, added uni filter, and he said it has an XR250 spark arrestor (the chrome insert). He said the XR250 insert (not sure which year) had a larger opening than the '98 and later 400s and that was a common mod. You guys ever heard of that? Anyway, the bike is basically stock.

The mtc book gives a correction of.92 for 6500 ft and 85 degrees F., that would make for a 133 main. The book says turn in the pilot 1/4 turn for corrections greater than .95. What do ya'll think? What's the best recipe
for this '98 model?

Thanks
If you jet it for 6500 ft. you're still going to be rich for Taylor Park. I would be jetting it for at least 9-10k.

Yes, what you heard about the XR250 exhaust insert is true.

If the main jet is currently a 145, with all the airbox, air filter and exhaust mods, it IS NOT jetted for sea level. If it was jetted properly for sea level it would have closer to a 160.

For the elevations of Taylor Park and Crested Butte, given the intake and exhaust mods, drop in a 150/50 combo, drop the needle to 2nd clip position from top.
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