X250 BajaMotorsports inverted front forks

machinebike · 06-13-2013, 07:38 PM

oil change?

Has anyone changed the oil in these before? Im having trouble loosening the top aluminum nut after I removed the two allen screws on the side.

Weldangrind · 06-13-2013, 09:17 PM

Welcome!

Please show us pics, so we can clear on what you're facing.

machinebike · 06-13-2013, 10:34 PM

Quote:

Originally Posted by Weldangrind

Welcome!

Please show us pics, so we can clear on what you're facing.

ok here they are....

pete · 06-14-2013, 12:52 AM

Been there...
Get a SINGLE HEX socket that fits.. and grind the face so there is no rounded edges
leading into the hex.. that will give more hex in contact with the short hex on the cap..

machinebike · 06-14-2013, 02:14 AM

Quote:

Originally Posted by pete

Been there...
Get a SINGLE HEX socket that fits.. and grind the face so there is no rounded edges
leading into the hex.. that will give more hex in contact with the short hex on the cap..

Is that the only bolt for the top? I had a tight socket on it and hit the socket wrench with a hammer to "shock" it loose but still didnt loosen. Maybe I should try rust loosening fluid around top even though it is aluminum.

Bike is from 2008.

Do you know if it is 2 chambers that need oil changed? How much suspension fluid/oil in each shock?
thanks

Weldangrind · 06-14-2013, 10:40 AM

A little PB Blaster wouldn't hurt. My guess is that there might be some galling, so extra lube is a good thing.

I have a similar set of forks, but the caps didn't give me trouble. I did have a challenge getting the socket to sit flat, so I might try Pete's idea and grind a socket flat to remove the internal taper. Do you have a 1/2" drive breaker bar?

Not sure if it's two chamber or not; I haven't taken mine apart any further yet, although I intend to soon. If they're single chamber, I'd follow Spudrider's recommendation and use 250ml of Valvoline Max Life Dex/Merc ATF. http://www.chinariders.net/showthread.php?t=10266

machinebike · 06-15-2013, 02:02 AM

Quote:

Originally Posted by Weldangrind

A little PB Blaster wouldn't hurt. My guess is that there might be some galling, so extra lube is a good thing.

I have a similar set of forks, but the caps didn't give me trouble. I did have a challenge getting the socket to sit flat, so I might try Pete's idea and grind a socket flat to remove the internal taper. Do you have a 1/2" drive breaker bar?

Not sure if it's two chamber or not; I haven't taken mine apart any further yet, although I intend to soon. If they're single chamber, I'd follow Spudrider's recommendation and use 250ml of Valvoline Max Life Dex/Merc ATF. http://www.chinariders.net/showthread.php?t=10266

hmmm....forgot about a breaker bar...thanks.
Ill have to file and reshape the nut then try the breaker

machinebike · 06-15-2013, 06:23 PM

anyone know why little holes are on top of aluminum nut?

Weldangrind · 06-16-2013, 04:18 PM

Don't know, but please tell us when you figure it out.

machinebike · 06-17-2013, 09:39 PM

Quote:

Originally Posted by Weldangrind

Don't know, but please tell us when you figure it out.

Im feeling discouraged....eiether the top nut loosens in the opposite direction or maybe its sealed unit and does not come apart.

It should not be this difficult to loosen unless something else is occuring

bogieboy · 06-17-2013, 09:59 PM

have you tried a bit of heat? they may have threadlock on them...

Weldangrind · 06-18-2013, 12:33 AM

I was thinking heat as well. I wouldn't use a torch, but a hair dryer should be ok. BTW, I'm pretty confident that the caps will be conventional right hand threads (meaning counter-clockwise to loosen).

machinebike · 06-26-2013, 12:57 PM

Front shocks work good, Im backing out of the suspension fluid change experiment.

Eevn using craftsman vice grips, i couldnt get the nut to loosen.

I didnt try heat though.

06-13-2013, 07:38 PM	#1
machinebike Join Date: Jun 2013 Posts: 40	X250 BajaMotorsports inverted front forks oil change? Has anyone changed the oil in these before? Im having trouble loosening the top aluminum nut after I removed the two allen screws on the side.
	0

06-13-2013, 09:17 PM	#2
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Welcome! Please show us pics, so we can clear on what you're facing. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

06-14-2013, 12:52 AM	#4
pete Join Date: Jan 2012 Location: ChCh , NZ Posts: 2,262	Been there... Get a SINGLE HEX socket that fits.. and grind the face so there is no rounded edges leading into the hex.. that will give more hex in contact with the short hex on the cap.. __________________ 09 XT660R ... 06 TTR250 ... 80 Montesa H6 125 Enduro... 77 Montesa Cota 348 MRR "Malcom Rathnell Replica"... Current resto projects.. 81 Honda CT110... 80 Kawasaki KL250A1... 11 Husaburg TE125 enduro... "sold" along with another 31... Lifan 125 Pitbike.. "stolen" ... KIWI BIKER FORUM...... http://www.kiwibiker.co.nz/forums/content.php All the best offroad rides in NZ... http://www.remotemoto.com/ E-mail... xtpete1@gmail.com
	0

06-14-2013, 10:40 AM	#6
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	A little PB Blaster wouldn't hurt. My guess is that there might be some galling, so extra lube is a good thing. I have a similar set of forks, but the caps didn't give me trouble. I did have a challenge getting the socket to sit flat, so I might try Pete's idea and grind a socket flat to remove the internal taper. Do you have a 1/2" drive breaker bar? Not sure if it's two chamber or not; I haven't taken mine apart any further yet, although I intend to soon. If they're single chamber, I'd follow Spudrider's recommendation and use 250ml of Valvoline Max Life Dex/Merc ATF. http://www.chinariders.net/showthread.php?t=10266 __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

06-16-2013, 04:18 PM	#9
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Don't know, but please tell us when you figure it out. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

06-15-2013, 06:23 PM	#8
machinebike Join Date: Jun 2013 Posts: 40	anyone know why little holes are on top of aluminum nut?
	0

06-17-2013, 09:59 PM	#11
bogieboy Join Date: May 2013 Location: finger lakes NY Posts: 2,046	have you tried a bit of heat? they may have threadlock on them...
	0

06-18-2013, 12:33 AM	#12
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I was thinking heat as well. I wouldn't use a torch, but a hair dryer should be ok. BTW, I'm pretty confident that the caps will be conventional right hand threads (meaning counter-clockwise to loosen). __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

06-26-2013, 12:57 PM	#13
machinebike Join Date: Jun 2013 Posts: 40	Front shocks work good, Im backing out of the suspension fluid change experiment. Eevn using craftsman vice grips, i couldnt get the nut to loosen. I didnt try heat though.
	0