size of swingarm pivot bolt, and front sproket removal - Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums

insaneYFZshane · 02-20-2012, 12:19 AM

i downloaded a service manual but i cant find where it says the socket size of the swingarm pivot bolt, it must be like a 21 or 22mm?

also how does one remove the front sprocket?

im trying to get my engine out, was moving along fine until i hit these snags.

thanks in advance!

shane

jljered · 02-20-2012, 12:37 AM

i think its a 24mm socket.... but bend the keeper tab back to flat, put the bike in gear and remove the nut... the shaft is splined so it might need some wd-40 and some persuasion....

scarecrow · 02-20-2012, 08:01 AM

My sprocket was so stuck on one of my bikes that there was no way that I could get it off with a normal socket wrech. Impact gun did not work either. I ended up putting the chain on and turning it until it got stuck and just jurned it until it came loose.

So that sprocket might be quite stuck if it has not been removed recently. Not sure about the pivor bolt nut size though

insaneYFZshane · 02-21-2012, 08:25 AM

thanks for the replies, but it still doesnt answer my questions. does anyone out there know the size of the nut for the the pivot bolt, and a diffinitive size for the front sprocket? i have to buy the sockets, and an impact gun this week.

thanks again!

shane

scarecrow · 02-21-2012, 08:57 AM

If you have a vernier you can measure it.

CUDAFREAK · 02-21-2012, 10:37 AM

27mm for the front sprocket

insaneYFZshane · 02-23-2012, 02:47 PM

thanks cuda, now just if someone would chime in on the swingarm pivot bolt nut, ill be set to rip it apart this weekend.

bump

hdodt · 02-24-2012, 08:17 AM

Just buy a whole set. I got a set from H.F. 10-32mm for like $20. Didn't come with a 12mm though. That kinda sucked.

tank1 · 02-24-2012, 10:18 AM

22mm for the pivot bolt.

insaneYFZshane · 02-26-2012, 03:27 PM

thanks guys, im all set now. too bad the weather up here took a turn for the worse, oh well it should warm up this week.

02-20-2012, 12:19 AM	#1 (permalink)
insaneYFZshane Senior Member Join Date: Dec 2011 Location: airdrie alberta canada Posts: 358	size of swingarm pivot bolt, and front sproket removal i downloaded a service manual but i cant find where it says the socket size of the swingarm pivot bolt, it must be like a 21 or 22mm? also how does one remove the front sprocket? im trying to get my engine out, was moving along fine until i hit these snags. thanks in advance! shane __________________ GOT AN 04 yfz450!! yay my first 450! 478 athena bbk, +3 hot rods stroker crank, gytr can w/fmf powerbomb header, billet intake adapter w/k&n. Soon to have FCI, sredrum 42.5mm carb, venom port job and venom full pipe. My other ride is a 03 z400 w/462 motor, houser/elka suspension, yoshi, fcr39 and tons more.

02-20-2012, 12:37 AM	#2 (permalink)
jljered Senior Member Join Date: May 2010 Location: washington Posts: 1,504	i think its a 24mm socket.... but bend the keeper tab back to flat, put the bike in gear and remove the nut... the shaft is splined so it might need some wd-40 and some persuasion.... __________________ 2008 YFZ450; plus 2 houser stem; plus 2 i-shock a arms; ims roll design pegs; gpr steering stabilizer; 42 sredrum carb bore; works black widow shocks; dasa classic; plus 2.5 ace fab swingarm; ncvq needle; kenz cycle tech +1 head; web +5 cams; asv clutch and brake levers; 13.75 piston; boyesen pump cover; fci intake; rpm dominator plus 4 axle If there's one thing i hate.... it's everyting

02-20-2012, 08:01 AM	#3 (permalink)
scarecrow Senior Member Join Date: Nov 2008 Location: South Africa Posts: 595	My sprocket was so stuck on one of my bikes that there was no way that I could get it off with a normal socket wrech. Impact gun did not work either. I ended up putting the chain on and turning it until it got stuck and just jurned it until it came loose. So that sprocket might be quite stuck if it has not been removed recently. Not sure about the pivor bolt nut size though __________________ 07' YFZ 450 PEP PB1 front and rear, Lonestar +2 A-arms, HMF Competition exhaust, Precision dampner ,HST ported head, Lonestar +2 axle, Flexx bars, Powermadd handguards, Houser +2 stem and clamp, OMF beadlocks, DG bumper, Pro design Intake, Long range tank, GYTR nerf bars 04' YFZ 450, PEP PB1 front shocks, Lonestar +2 A-arms, Pep rear shock, Airtime +2 axle, Airtime +1 stem and clamp, Flexx bars, Pro Circuit T4 slip-on, DWT rear beadlocks, GYTR front bumper, Hyde skidplates, Long range tank

02-21-2012, 08:25 AM	#4 (permalink)
insaneYFZshane Senior Member Join Date: Dec 2011 Location: airdrie alberta canada Posts: 358	thanks for the replies, but it still doesnt answer my questions. does anyone out there know the size of the nut for the the pivot bolt, and a diffinitive size for the front sprocket? i have to buy the sockets, and an impact gun this week. thanks again! shane __________________ GOT AN 04 yfz450!! yay my first 450! 478 athena bbk, +3 hot rods stroker crank, gytr can w/fmf powerbomb header, billet intake adapter w/k&n. Soon to have FCI, sredrum 42.5mm carb, venom port job and venom full pipe. My other ride is a 03 z400 w/462 motor, houser/elka suspension, yoshi, fcr39 and tons more.

02-21-2012, 08:57 AM	#5 (permalink)
scarecrow Senior Member Join Date: Nov 2008 Location: South Africa Posts: 595	If you have a vernier you can measure it. __________________ 07' YFZ 450 PEP PB1 front and rear, Lonestar +2 A-arms, HMF Competition exhaust, Precision dampner ,HST ported head, Lonestar +2 axle, Flexx bars, Powermadd handguards, Houser +2 stem and clamp, OMF beadlocks, DG bumper, Pro design Intake, Long range tank, GYTR nerf bars 04' YFZ 450, PEP PB1 front shocks, Lonestar +2 A-arms, Pep rear shock, Airtime +2 axle, Airtime +1 stem and clamp, Flexx bars, Pro Circuit T4 slip-on, DWT rear beadlocks, GYTR front bumper, Hyde skidplates, Long range tank

02-21-2012, 10:37 AM	#6 (permalink)
CUDAFREAK Senior Member Join Date: Mar 2011 Location: Oregon Posts: 254	27mm for the front sprocket __________________ 08 yfz

02-23-2012, 02:47 PM	#7 (permalink)
insaneYFZshane Senior Member Join Date: Dec 2011 Location: airdrie alberta canada Posts: 358	thanks cuda, now just if someone would chime in on the swingarm pivot bolt nut, ill be set to rip it apart this weekend. bump __________________ GOT AN 04 yfz450!! yay my first 450! 478 athena bbk, +3 hot rods stroker crank, gytr can w/fmf powerbomb header, billet intake adapter w/k&n. Soon to have FCI, sredrum 42.5mm carb, venom port job and venom full pipe. My other ride is a 03 z400 w/462 motor, houser/elka suspension, yoshi, fcr39 and tons more.

02-24-2012, 08:17 AM	#8 (permalink)
hdodt Member Join Date: Jan 2012 Location: Utah Posts: 84	Just buy a whole set. I got a set from H.F. 10-32mm for like $20. Didn't come with a 12mm though. That kinda sucked.

02-24-2012, 10:18 AM	#9 (permalink)
tank1 Senior Member Join Date: Dec 2006 Posts: 109	22mm for the pivot bolt.

02-26-2012, 03:27 PM	#10 (permalink)
insaneYFZshane Senior Member Join Date: Dec 2011 Location: airdrie alberta canada Posts: 358	thanks guys, im all set now. too bad the weather up here took a turn for the worse, oh well it should warm up this week. __________________ GOT AN 04 yfz450!! yay my first 450! 478 athena bbk, +3 hot rods stroker crank, gytr can w/fmf powerbomb header, billet intake adapter w/k&n. Soon to have FCI, sredrum 42.5mm carb, venom port job and venom full pipe. My other ride is a 03 z400 w/462 motor, houser/elka suspension, yoshi, fcr39 and tons more.

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