The XR400 Thread

[XR4EVER]

Nice sig line, Dr. Lewall! I think I've seen that somewhere before!

[DrLewall]

Originally Posted by XR4EVER

Nice sig line, Dr. Lewall! I think I've seen that somewhere before!

yep..I stole it!

[kito]

has any one ever tryed to get a XR650R tank to fit there XR400 ??
im thinking one of these
Honda XR650R IMS Fuel Tank (2000-2007) 7.0 Gallon (Natural) Fuel Tank

or
Honda XR650R Acerbis Sahara Gas Tank 6.3Gal - XR Red

I dont mind doing a bit of fab work if it can fit over the frame and cilinder head.
I realy like the way they carry a lot of fuel lower

[Stretch67]

For more info on big aftermarket fuel tanks, check out the following Posts right here on the XR400 Thread:

24, 38-41, 68, 401-5, 408-9, 527, 550-52, 554, 690, 694-5, 804-5, 834-47, 1403-04, 1407, 1594-08, 1608, 1631, (2086-2092), 2329, 2335, 2372, 2378, 2391, 3001-03, 3051, 3218-21, 3681-89, 4340, 4369-70, 4586, 4625, 4665, 4676-77, 5048-50

[kito]

just read through all them and its just the same few tanks . one guy asked the same question some time back and had a reply about the xr650r tank being design to fit round the rads and that might be a problem . I realy cant see why this would be a problem as im thinking it would give more space than we need. the main fitting issue would be the size/shape of the engine and the shape of the upper frame on the 2 different bikes . Is the anyone out there with a xr400 and a xr650r to compare for me ? if it fits over I can weld up the mounts
thanks kito

[Stretch67]

Okay. Try sending a PM to this cat... from his signature he appears to have XR400's, and 650's (R and L).

http://advrider.com/forums/showthread.php?t=871206

[AndyCap]

First I apologize if this has been asked before in this thread. I did a search, but didn't have much luck.

I have a 2003 XR400R.

I am 230#, and find the rear spring may not be enough to handle me. Where do I go to get a new shock, or heavier spring? Is it even possible?

[RideFreak]

Recommended spring rates:
http://www.4strokes.com/tech/honda/sprngrts.asp

Eibach Springs:
http://performance-suspension.eibach...alog_downloads

[MartiniUp]

Originally Posted by AndyCap

First I apologize if this has been asked before in this thread. I did a search, but didn't have much luck.

I have a 2003 XR400R.

I am 230#, and find the rear spring may not be enough to handle me. Where do I go to get a new shock, or heavier spring? Is it even possible?

Anyone who works on dirt bike susp can get any spring you need. There are hundreds. Any dirt mag will have many advertised or any dirt oriented forums will have info also. CK the XR4 forums in ThumperTalk. Factory Connection in your area is a great source also. Most will also have used springs at a good discount. A spring never goes bad.

[JimmieA]

I posted earlier about my electric start. I have the bike back now from the mechanic. He says the piece from Switzerland is good, like .002 run-out. He is happy with the part. I wanted his opinion as I was a little worried about it. I bought a 200 watt stator for the bike but the wiring harness is different so I have to sort that out. I have to build a battery bracket and get a starter solenoid and button before I have a magic button! I got a gasket for the XR400 but now I have a 400EX side cover so the gasket is missing the starter bit, my bad! If it leaks I will have to change the gasket. He used a bit of silicone and the old gasket in that area. I'm looking forward to magic button but it has been costly.

[RideFreak]

Originally Posted by JimmieA

I posted earlier about my electric start. I have the bike back now from the mechanic. He says the piece from Switzerland is good, like .002 run-out. He is happy with the part. I wanted his opinion as I was a little worried about it. I bought a 200 watt stator for the bike but the wiring harness is different so I have to sort that out. I have to build a battery bracket and get a starter solenoid and button before I have a magic button! I got a gasket for the XR400 but now I have a 400EX side cover so the gasket is missing the starter bit, my bad! If it leaks I will have to change the gasket. He used a bit of silicone and the old gasket in that area. I'm looking forward to magic button but it has been costly.

A battery box out of a electric start KTM looks like it will fit right where it's mounted on the KTM, top rear of the airbox leaned backwards.

Same loc as this cap. They are plastic and mount through the back of the airbox. Should be able to find one cheap from KTM talk. Add a 1.5 lb LI battery like a turn tech and you're set. The box even has the mounts for the solenoid.

[JimmieA]

[QUOTE=RideFreak;20986800]A battery box out of a electric start KTM looks like it will fit right where it's mounted on the KTM, top rear of the airbox leaned backwards.

Same loc as this cap. They are plastic and mount through the back of the airbox. Should be able to find one cheap from KTM talk. Add a 1.5 lb LI battery like a turn tech and you're set. The box even has the mounts for the solenoid.

I ordered one of their batteries, give it a go. Thanks for the tip. Cost me $140 with shipping though!

[PCK_4xCustoms]

Ride freak, thanks for posting that photo again. I was trying to find it but couldn't remember where I saw it.
What size cap is it that you run? My battery pack is very dead from the PO.

Sent from my XT907 using Tapatalk 2

[kdennan]

Just my two cents,
I had a 98' 400 (only bike I regret selling) and did the following mods for ultimate performance on the cheap.
Removed exhaust pipe end cap and replaced with a 96'. Larger opening to let the bike breath. Sounded better too
Uni-filter and steel, high flow cage. Tossed stock air filter.
160 main and 60 pilot jets. This is based on sea level to 3,500' elevation.
Progressive fork springs, IMS stainless steel footpegs, Moose folding shift lever, Works Connection billet clutch and decompression lever, Renthal bars, ODI bolt on grips, Pirelli MT 16 rear (120) and MT16 front tires and the necessary guards.
Loved that bike!

I also had an XR600 and it was the one other bike I miss.
Someday I'll look out for either used and in mint condition.

[RideFreak]

Originally Posted by PCK_4xCustoms

Ride freak, thanks for posting that photo again. I was trying to find it but couldn't remember where I saw it.
What size cap is it that you run? My battery pack is very dead from the PO.

Sent from my XT907 using Tapatalk 2

YW, it's a 4400uf/50V, don't expect much output at idle, all it does is allow you to run DC w/o a battery.