Need help adjusting valves - TriStateTuners.com :: Home of Tristate Auto Enthusiast

Vr-4-Life · 09-10-2009, 10:21 AM

Hello,

I have a 250 cc bike that is carbed... I need help adjusting the valves.. theres only two... I was told this is why my bike is hard to start some days and why it doesnt run well at low rpms.

apparently this is the first thing you should do if a bike has sat for 8 years... after changing the oil i mean...

if you have the tools to do this and know how I will pay you for your time...

OMGz Turbo · 09-10-2009, 02:45 PM

Rich, i know a few guys over at nickerson' performance that might be able to help. Ill give him a call

jpalamar · 09-11-2009, 10:21 AM

You only have 2 valves?

I'm in the same boat with my 01 GSXR 600, i need the valves checked/and possibly adjuster. Dealer wanted $400 in their estimate to do it.

Vr-4-Life · 09-11-2009, 12:15 PM

the bike is only a 250cc... single piston.... so yea one intake valve and one exhaust...

I dont see how they can charge a lot for such a simple job.. i know its a pain on solid lifters but come on...

TurboTagTeam · 09-11-2009, 12:36 PM

To CHECK them all you need to do is remove the valve cover and use a feeler gauge to check the distance between the cam lobe and lifter.

To ADJUST them is alot more work....The cams and everything has to come out. And then you have to order and replace the correct shims too. 400 seems about right to adjust the valves.

I did my own on my GIX750 and it took me a whole day taking my time.

jpalamar · 09-14-2009, 12:43 PM

Quote:

Originally Posted by TurboTagTeam

To CHECK them all you need to do is remove the valve cover and use a feeler gauge to check the distance between the cam lobe and lifter.

To ADJUST them is alot more work....The cams and everything has to come out. And then you have to order and replace the correct shims too. 400 seems about right to adjust the valves.

I did my own on my GIX750 and it took me a whole day taking my time.

You wanna help me? I'll buy beer and I'll grill?

Vr-4-Life · 09-16-2009, 03:44 PM

Quote:

Originally Posted by TurboTagTeam

To CHECK them all you need to do is remove the valve cover and use a feeler gauge to check the distance between the cam lobe and lifter.

To ADJUST them is alot more work....The cams and everything has to come out. And then you have to order and replace the correct shims too. 400 seems about right to adjust the valves.

I did my own on my GIX750 and it took me a whole day taking my time.

That sounds right asuming you have an OHC motor. I dont so... the only thing up there is going to be rockers.... also its only one cylinder so it should be a lot easier then a inline four....

Quote:

Originally Posted by jpalamar

You wanna help me? I'll buy beer and I'll grill?

If you want help.. make a thread of your own...

Also I may be wrong about the valves.. I can feel air coming out the exhaust on every stroke so it obviously has some compression.. I think this may be a timing issue.... Does anyone know how to time these suckers?

09-10-2009, 10:21 AM	#1
Vr-4-Life Tri-State Post Whore Join Date: May 2006 Location: Philly PA Member #1961 My Ride: BMW E60 M5 V10 6 Speed --- Ducati Monster 696 iTrader: (4)	Need help adjusting valves Hello, I have a 250 cc bike that is carbed... I need help adjusting the valves.. theres only two... I was told this is why my bike is hard to start some days and why it doesnt run well at low rpms. apparently this is the first thing you should do if a bike has sat for 8 years... after changing the oil i mean... if you have the tools to do this and know how I will pay you for your time...

09-10-2009, 02:45 PM	#2
OMGz Turbo Tri-State Post Whore Join Date: Dec 2006 Location: Ltown Member #3108 My Ride: 01' WS6..That whistles...01' Explorer 5.slow iTrader: (0)	Rich, i know a few guys over at nickerson' performance that might be able to help. Ill give him a call __________________ loading HATERS.....99% ████████████████] NO ONE CARES ABOUT BEING TTT APPROVED

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09-11-2009, 10:21 AM	#3
jpalamar TST Ruined My Life! Join Date: May 2009 Location: Collegeville, PA Member #13773 My Ride: 03 Corvette Z06 iTrader: (3)	You only have 2 valves? I'm in the same boat with my 01 GSXR 600, i need the valves checked/and possibly adjuster. Dealer wanted $400 in their estimate to do it.

09-11-2009, 12:15 PM	#4
Vr-4-Life Tri-State Post Whore Join Date: May 2006 Location: Philly PA Member #1961 My Ride: BMW E60 M5 V10 6 Speed --- Ducati Monster 696 iTrader: (4)	the bike is only a 250cc... single piston.... so yea one intake valve and one exhaust... I dont see how they can charge a lot for such a simple job.. i know its a pain on solid lifters but come on...

09-11-2009, 12:36 PM	#5
TurboTagTeam Tri-State Post Whore Banned Join Date: Mar 2005 Location: Cell Block F Member #275 My Ride: constantly changes iTrader: (2)	To CHECK them all you need to do is remove the valve cover and use a feeler gauge to check the distance between the cam lobe and lifter. To ADJUST them is alot more work....The cams and everything has to come out. And then you have to order and replace the correct shims too. 400 seems about right to adjust the valves. I did my own on my GIX750 and it took me a whole day taking my time.