Checking Valve Lash/changing Shims - Page 2

struckran · 05-01-2011, 08:15 PM

lol dont know where else to ask this...but i just picked up a blown 400 and got a new top end, the cams jam really tight when i tighten the 4 bolts ....i got the hotcams shim kit and set the new valves closest to specs i could so its the journals. i even put pieces of gaskets in between and they still seem to have quite a drag and only VERY light scaring on one of the journal covers....anyone else have this problem?

deicide610 · 07-04-2011, 09:17 AM

That is a great post. I had my whole top end rebuilt in february but i have to choke almost every time i try and start it after sitting for a while (not sure if thats normal) and was told that the valves might need to be adjusted after break in. I do have a manuel but never seeing it done still made me nervous, now actually seeing most of it done helps put the manuel in perspective and gives more confidence in trying it. I'll just be especially carefull on not dropping the shims and lineing up the timeing . Thanx for the heads up..... I love this site. lol

Tyler · 08-07-2011, 01:21 AM

what exactly do you have to buy other then to tools to fix it cause i have to do mine next week

spize909 · 08-07-2011, 10:06 AM

to fix what?
If your valves are cupped you will need new valves, springs while you are in there, gaskets, etc...
If they are just a little out of spec you just need the correct shim(s).

Tyler · 08-07-2011, 10:32 AM

the vaulves are new i just doesnt start when its cold

spize909 · 08-07-2011, 10:47 AM

Then they probably just need to be properly shimmed.
You will need to check the lash and figure out what shims you need by seeing what's already in there. If it is in spec they you have other issues.

Here's a tool to help with figuring out what you need if they are out of spec. Don't mix up mm and inches.
Valve Shim Calculator

biggiej42 · 08-07-2011, 10:48 AM

Don't clutter the sticky tyler, you made a thread on this and everyone told you what to do.

spize909 · 10-17-2011, 10:58 PM

There must be a time-limit on editing. I was going to add this to the original post...........but I can't.

It's the valve shim calculator.

Valve Shim Calculator

arrowblazer71 · 02-02-2012, 12:28 PM

Quick Question. If the tensioner is out or broken will this mess up the reading of valve clearance

flattracker1 · 02-02-2012, 02:11 PM

i would say no. not 100% on that though. i like to have everything together like its going to run just for piece of mind.

Ruga'srig7 · 02-07-2012, 11:09 PM

where did you get your new parts from? im about to do my bike. bought it used. takes a min to start. i know my carb is clean. no choke but even when i put a heater next to the motor it still take awhile.

07-04-2011, 09:17 AM	#17 (permalink)
deicide610 :::Ozark 250 rider::: Join Date: Apr 2011 Location: plattsburgh, ny Posts: 325	That is a great post. I had my whole top end rebuilt in february but i have to choke almost every time i try and start it after sitting for a while (not sure if thats normal) and was told that the valves might need to be adjusted after break in. I do have a manuel but never seeing it done still made me nervous, now actually seeing most of it done helps put the manuel in perspective and gives more confidence in trying it. I'll just be especially carefull on not dropping the shims and lineing up the timeing . Thanx for the heads up..... I love this site. lol __________________ White03'Z, full skid, FULL yoshi RS-2 exhaust, E-Line carbon fiber 8" heat shield w/ header wrap, moose e-brake block off, moose push bar,DG nerf bars, ambush tires ,N-style seat cover,G-force +4 axle, gas vent cap,13T sprocket, Dyno-jets, renthal twin wall bars, odi grips,CF hood, blue L.E.D tail light, billet dash mount with +1 risers, spize RAD shrouds, Pro Armor swing skid, Power Madd hand guards, (Blob Removed) Fly kill button, Longhorn clutch lever w/hotstart / reverse, pull choke

08-07-2011, 10:06 AM	#19 (permalink)
spize909 :::Get a life! You're over 5000 posts::: Join Date: Oct 2008 Location: Southern California Posts: 5,245	to fix what? If your valves are cupped you will need new valves, springs while you are in there, gaskets, etc... If they are just a little out of spec you just need the correct shim(s). __________________ 2005 Z-400 Mine *January* *2011 QOTM* 2004 Z-400 Brad'Z *October 2011 QOTM* http://www.suzukicentral.com/forums/...tm-winner.html 2004 Z-400 Wife's 1996 Sandsprite IV (sandrail) MINE Sponsors: Coors Light.............I sponsor them! *Life is tough...........it's tougher if you're stupid.*

08-07-2011, 10:47 AM	#21 (permalink)
spize909 :::Get a life! You're over 5000 posts::: Join Date: Oct 2008 Location: Southern California Posts: 5,245	Then they probably just need to be properly shimmed. You will need to check the lash and figure out what shims you need by seeing what's already in there. If it is in spec they you have other issues. Here's a tool to help with figuring out what you need if they are out of spec. Don't mix up mm and inches. Valve Shim Calculator __________________ 2005 Z-400 Mine *January* *2011 QOTM* 2004 Z-400 Brad'Z *October 2011 QOTM* http://www.suzukicentral.com/forums/...tm-winner.html 2004 Z-400 Wife's 1996 Sandsprite IV (sandrail) MINE Sponsors: Coors Light.............I sponsor them! *Life is tough...........it's tougher if you're stupid.*

08-07-2011, 10:48 AM	#22 (permalink)
biggiej42 :::Official Spammer::: Join Date: Jun 2006 Posts: 3,390	Don't clutter the sticky tyler, you made a thread on this and everyone told you what to do. __________________ 05' Z434 12.5:1CP,Full Yosh TRC,FCR40,175/45,Rat Stack,Dyna Programmable,AMR Coil,KW Valvetrain,536/540 Web's,DID Tchain,PWR Radiator,Raptor petcock,Gunnar Kill,Elka S3 Front+Rear w/link,Roll+1 Stem,GPR Stabilizer,SL Hyd.Clutch,Tag T2,LSR+3 Arms,Burgard+1 Swinger,Quadtech Rad Shrouds,Supersprox 14/40t,UM Air Box,YFZ Calipers,SS Lines,PA Bumper,Asv's,Roll Nerfs/Heels/Pegs,LSR Axcalibar,Douglas G2 Beadlocks/Razr's,Hid,YFZTail,Pwrmadd's,TT Vapor+Dash,CV4's,RickyStator. July 2011 QOTM

10-17-2011, 10:58 PM	#23 (permalink)
spize909 :::Get a life! You're over 5000 posts::: Join Date: Oct 2008 Location: Southern California Posts: 5,245	There must be a time-limit on editing. I was going to add this to the original post...........but I can't. It's the valve shim calculator. Valve Shim Calculator __________________ 2005 Z-400 Mine *January* *2011 QOTM* 2004 Z-400 Brad'Z *October 2011 QOTM* http://www.suzukicentral.com/forums/...tm-winner.html 2004 Z-400 Wife's 1996 Sandsprite IV (sandrail) MINE Sponsors: Coors Light.............I sponsor them! *Life is tough...........it's tougher if you're stupid.*

05-01-2011, 08:15 PM	#16 (permalink)
struckran :::Rookie Rider::: Join Date: Feb 2011 Posts: 1	lol dont know where else to ask this...but i just picked up a blown 400 and got a new top end, the cams jam really tight when i tighten the 4 bolts ....i got the hotcams shim kit and set the new valves closest to specs i could so its the journals. i even put pieces of gaskets in between and they still seem to have quite a drag and only VERY light scaring on one of the journal covers....anyone else have this problem?

08-07-2011, 01:21 AM	#18 (permalink)
Tyler :::Rookie Rider::: Join Date: Aug 2011 Posts: 25	what exactly do you have to buy other then to tools to fix it cause i have to do mine next week

08-07-2011, 10:32 AM	#20 (permalink)
Tyler :::Rookie Rider::: Join Date: Aug 2011 Posts: 25	the vaulves are new i just doesnt start when its cold

02-02-2012, 12:28 PM	#24 (permalink)
arrowblazer71 :::Ozark 250 rider::: Join Date: Sep 2011 Location: Tarkio, MO Posts: 295	Quick Question. If the tensioner is out or broken will this mess up the reading of valve clearance __________________ 2004 Z400 white bros ehxaust, 92mm stroker kit. some other stuff. 2003 Z400 DMC Alien exhaust 2003 Z400 White bros exhaust Sponsors: GoPro, EVS, slick offroad wash, Eken, Livewire energy,

02-02-2012, 02:11 PM	#25 (permalink)
flattracker1 :::Ozark 250 rider::: Join Date: Aug 2010 Posts: 275	i would say no. not 100% on that though. i like to have everything together like its going to run just for piece of mind.

02-07-2012, 11:09 PM	#26 (permalink)
Ruga'srig7 :::Rookie Rider::: Join Date: Feb 2012 Posts: 3	where did you get your new parts from? im about to do my bike. bought it used. takes a min to start. i know my carb is clean. no choke but even when i put a heater next to the motor it still take awhile.

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