valves - Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums

pimtool · 02-04-2012, 10:12 PM

Am I gonna hurt the engine if I ride with the valves out of adjustment?

I have a 05 yfz 450, I just got the thing and am new to quads. I imagine the valves need adjusting, but dont have the time or the courage to tear into this thing yet.

I still want to ride it, but dont want to hurt it.

Also, where is a good place to get a service manual?

Thanks.

Ripcityrider2010 · 02-04-2012, 11:15 PM

I wouldn't recommend it. Here is link to a manual. YFZ450 Garage. Its not that hard to do. I taught my self how to do it. And if you get stuck you can come here for help.

climb-101 · 02-05-2012, 12:22 AM

its not that bad to ride it. if there out of speck, it might be hard to start if it get warm. i would check them. its east to do with a feeler gauge and all you have to do is put the motor at TDC. if there off, have them re-shimed

pimtool · 02-05-2012, 10:58 PM

Yeah it takes a few tries to get it started when its hot and i can hear them ticking.

Thanks for the link, maybe i will tear into it one of these weekends.

02-04-2012, 10:12 PM	#1 (permalink)
pimtool Junior Member Join Date: Feb 2012 Location: south carolina Posts: 12	valves Am I gonna hurt the engine if I ride with the valves out of adjustment? I have a 05 yfz 450, I just got the thing and am new to quads. I imagine the valves need adjusting, but dont have the time or the courage to tear into this thing yet. I still want to ride it, but dont want to hurt it. Also, where is a good place to get a service manual? Thanks.

02-04-2012, 11:15 PM	#2 (permalink)
Ripcityrider2010 Senior Member Join Date: Dec 2010 Location: southeastern PA Posts: 530	I wouldn't recommend it. Here is link to a manual. YFZ450 Garage. Its not that hard to do. I taught my self how to do it. And if you get stuck you can come here for help. __________________ 09 YFZ450R- Pro Armor Revolution Nerf Bars, Pro Armor Cross Country Bumper, Rath Grab bar, PRM Skidplate, Dasa Full Exhaust, MSD Blaster Ignition, Pro Flow Intake, Precision Stabilizer, Racetech suspension conversion, 07 intake cam, GYTR kill switch, ODI Lock-on grips, Custom Dyno tune by Stump's Garage, Houser + 2" stem, Speedlinez front brake lines, Steel braided throttle cable, Steel braided clutch cable

02-05-2012, 12:22 AM	#3 (permalink)
climb-101 Senior Member Join Date: Oct 2007 Posts: 2,088	its not that bad to ride it. if there out of speck, it might be hard to start if it get warm. i would check them. its east to do with a feeler gauge and all you have to do is put the motor at TDC. if there off, have them re-shimed __________________ If everything seems like your in control, your not going fast enough ITS A MMAD WORLD

02-05-2012, 10:58 PM	#4 (permalink)
pimtool Junior Member Join Date: Feb 2012 Location: south carolina Posts: 12	Yeah it takes a few tries to get it started when its hot and i can hear them ticking. Thanks for the link, maybe i will tear into it one of these weekends.

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