Zongshen 223cc oil cooled valve clearence?

mefairo · 04-26-2018, 09:23 PM

Hello, i have a 2015 oil cooled engine.its 223 cc sold as model Falcon Freedom 250 in Turkey... link

at youtube i see a german guy that says valve clearence is 0.03mm but if there is still noise you can do it 0.02mm...
Another guy says 0.03 in-0.04 out...
another guy says its 0.06-0.8

Which one is it ? unfortunatelly i dont have manuel and the services doesnt want to tell because they want to do it and take money

I did it 0.03-0.04 but didnt start it to be sure...

Thanks.

RESULTS AFTER A MONTH: hello again...i tried 0.03-0.04 for some weeks with the youtuber advice and i saw that the engine was too hot and burned my oil and legs in a very short period...performance was wonderful but you feel that engine gets stuck to much from pressure...

after that i tried 0.05 which @emerikol adviced... and the engine is happy now...heat is gone and is normal now... also performance is very perfect and the engine is also happy but i feel a little bit pressure in the engine so i will try 0.01 more and share the result..

Also from youtube, some guy posted something from handbook and i believe its the correct clearence...

Im Handbuch ist zu lesen "intake gap should be 0.06-0.08mm" exhaust gap should be 0.08-0.10mm"

will try and share my results

thanks.

Emerikol · 04-26-2018, 11:08 PM

I set the valves on my Hawk to .005", and it seems to be happy. You should hear some valve train noise, and the catchphrase of the day is "Tappy valves are Happy valves." Having the valves set a little bit looser than spec will allow them to dissipate heat through the valve seats while they're closed, and it will shorten (very minimally) the time that they're open. Conversely, if you have very tight valves, they stay open longer, or all the time, and that will quickly burn a valve and kill the combustion seal. I would experiment a little bit to see what gives you the greatest deal in terms of increased performance while being very careful to make sure they're not set too tight. Too tight will be great performance right up until the engine eats a broken and burnt valve, or the engine won't start because it can't make any compression.

Weldangrind · 04-27-2018, 11:19 AM

Since your engine is an overhead cam design, I'd set it up a little looser; perhaps 0.04-0.05mm, just like a Honda XR200 (which is a similar design). Ensure that the engine has been allowed to cool overnight before making adjustments to valves.

mefairo · 04-27-2018, 12:37 PM

Quote:

Originally Posted by Weldangrind

Since your engine is an overhead cam design, I'd set it up a little looser; perhaps 0.04-0.05mm, just like a Honda XR200 (which is a similar design). Ensure that the engine has been allowed to cool overnight before making adjustments to valves.

today i set it both to 0.04 mm and there is a lot head crashing noise and i feel that the engine is stuck... when i turn kill switch on it stops immediately...

so if there is a lot tak tak noise than should i lower the setup to 0.03 or even 0.02 or try higher points such as 0.05 etc ?

here is the noise
https://clyp.it/lwuwt5eo/

Mudflap · 04-27-2018, 01:50 PM

Sounds like you adjusted the valves on the wrong stroke.

mefairo · 04-27-2018, 03:18 PM

Quote:

Originally Posted by Mudflap

Sounds like you adjusted the valves on the wrong stroke.

is this correct?

Mudflap · 04-27-2018, 03:24 PM

I can't view the video because I'm in a fringe area but I'm sure someone here will check it out and see if its correct.

mefairo · 04-28-2018, 05:42 AM

Quote:

Originally Posted by mefairo

is this correct?

OK right I figured out that my position was false...FL must be downwards at 8 o'clock .D

Now I got 0.04 out and a tight 0.04 in ...

Have a very little tickleling... I guess 0.03 both side will be better for this engine.

franque · 04-28-2018, 09:49 AM

Normally you wouldn't check the valves according to the cam gear on top. You'd line up the bottom, like you had, and then check to see if the valves are at all loose... If they aren't, you're 180° out.

mefairo · 04-29-2018, 07:12 AM

so whats the best valve clearence for this machine in your experience?

humanbeing · 04-29-2018, 07:47 AM

Quote:

Originally Posted by Weldangrind

... a little looser; perhaps 0.04-0.05mm, just like a Honda XR200 (which is a similar design)...

Honda said 0.1mm in their 65.5*62.2

mefairo · 05-01-2018, 09:27 AM

Quote:

Originally Posted by humanbeing

Honda said 0.1mm in their 65.5*62.2

A guy at youtube says he experienced the best performance at 0.02mm but comments says its to tight...

Now i am using at 0.04-0.03 it ok.. İ guess nobody knows what the factory defaults are for this machine

mefairo · 05-11-2018, 07:27 AM

Now i am using at 0.04-0.03 ,when engine mis cold no sound but when hot it makes noise...so is it better to go down or up?

by the way i live in izmir turkey so its 30-40C here ...

franque · 05-11-2018, 07:41 AM

I'd go with the Honda .1mm, that way you don't burn a valve.

mefairo · 05-30-2018, 07:43 AM

hello again, after a month experiencing, i wanna share my result.

first i setted it to 0.03-0.04 (a youtuber suggeested its perfect) but i realized that performance was perfect, but the engine was getting too hot and disturbed my legs...and also 1 week old oil was very black... also you can feal that the engine has to much pressure in it...

another youtuber says 0.02 is perfect for this machine, i tried it, ofcource performance is wonderful but engine to hot...

now i tried 0.05 as @Emerikol suggested at first post, and the engine is happy...its no more disturbingly hot and performance is also very good. and very funny, there is no tapping noise ... when i did 0.03-0.04 at cold there was no tapping but when warm it was tapping but now at 0.05 the noise is much better

so for now i am happy with 0.05 .)

thank you all who tried to help and appreciate for support...

04-26-2018, 09:23 PM	#1
mefairo Join Date: Apr 2018 Posts: 9	Zongshen 223cc oil cooled valve clearence? Hello, i have a 2015 oil cooled engine.its 223 cc sold as model Falcon Freedom 250 in Turkey... link at youtube i see a german guy that says valve clearence is 0.03mm but if there is still noise you can do it 0.02mm... Another guy says 0.03 in-0.04 out... another guy says its 0.06-0.8 Which one is it ? unfortunatelly i dont have manuel and the services doesnt want to tell because they want to do it and take money I did it 0.03-0.04 but didnt start it to be sure... Thanks. RESULTS AFTER A MONTH: hello again...i tried 0.03-0.04 for some weeks with the youtuber advice and i saw that the engine was too hot and burned my oil and legs in a very short period...performance was wonderful but you feel that engine gets stuck to much from pressure... after that i tried 0.05 which @emerikol adviced... and the engine is happy now...heat is gone and is normal now... also performance is very perfect and the engine is also happy but i feel a little bit pressure in the engine so i will try 0.01 more and share the result.. Also from youtube, some guy posted something from handbook and i believe its the correct clearence... Im Handbuch ist zu lesen "intake gap should be 0.06-0.08mm" exhaust gap should be 0.08-0.10mm" will try and share my results thanks. Last edited by mefairo; 06-01-2018 at 07:08 AM.
	1

04-26-2018, 11:08 PM	#2
Emerikol Join Date: Oct 2016 Location: Carrollton, GA Posts: 1,465	I set the valves on my Hawk to .005", and it seems to be happy. You should hear some valve train noise, and the catchphrase of the day is "Tappy valves are Happy valves." Having the valves set a little bit looser than spec will allow them to dissipate heat through the valve seats while they're closed, and it will shorten (very minimally) the time that they're open. Conversely, if you have very tight valves, they stay open longer, or all the time, and that will quickly burn a valve and kill the combustion seal. I would experiment a little bit to see what gives you the greatest deal in terms of increased performance while being very careful to make sure they're not set too tight. Too tight will be great performance right up until the engine eats a broken and burnt valve, or the engine won't start because it can't make any compression. __________________ First Rule of Aviation: -Never Pass Up The Opportunity to Pee I was struggling to get my wife's attention; I sat down on the couch and looked comfortable. That did the trick! My wife says I only have two faults. I don't listen and something else... If at first you don't succeed, try doing it the way I told you to... The Stable: 2005 Yamaha V-Star 650 - SOLD 2015 Suzuki DR 650 2015 RPS Hawk 250 - SOLD 2016 Ural Gear Up
	2

04-27-2018, 11:19 AM	#3
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Since your engine is an overhead cam design, I'd set it up a little looser; perhaps 0.04-0.05mm, just like a Honda XR200 (which is a similar design). Ensure that the engine has been allowed to cool overnight before making adjustments to valves. __________________ 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
	1

04-28-2018, 09:49 AM	#9
franque Join Date: Nov 2017 Location: Marseille, France -> Conakry, Guinea Posts: 1,481	Normally you wouldn't check the valves according to the cam gear on top. You'd line up the bottom, like you had, and then check to see if the valves are at all loose... If they aren't, you're 180° out. Last edited by franque; 04-29-2018 at 09:23 AM.
	0

04-27-2018, 01:50 PM	#5
Mudflap Join Date: Sep 2014 Posts: 1,875	Sounds like you adjusted the valves on the wrong stroke.
	0

04-27-2018, 03:24 PM	#7
Mudflap Join Date: Sep 2014 Posts: 1,875	I can't view the video because I'm in a fringe area but I'm sure someone here will check it out and see if its correct.
	0

04-29-2018, 07:12 AM	#10
mefairo Join Date: Apr 2018 Posts: 9	so whats the best valve clearence for this machine in your experience?
	0

05-11-2018, 07:27 AM	#13
mefairo Join Date: Apr 2018 Posts: 9	Now i am using at 0.04-0.03 ,when engine mis cold no sound but when hot it makes noise...so is it better to go down or up? by the way i live in izmir turkey so its 30-40C here ...
	0

05-11-2018, 07:41 AM	#14
franque Join Date: Nov 2017 Location: Marseille, France -> Conakry, Guinea Posts: 1,481	I'd go with the Honda .1mm, that way you don't burn a valve.
	0

05-30-2018, 07:43 AM	#15
mefairo Join Date: Apr 2018 Posts: 9	hello again, after a month experiencing, i wanna share my result. first i setted it to 0.03-0.04 (a youtuber suggeested its perfect) but i realized that performance was perfect, but the engine was getting too hot and disturbed my legs...and also 1 week old oil was very black... also you can feal that the engine has to much pressure in it... another youtuber says 0.02 is perfect for this machine, i tried it, ofcource performance is wonderful but engine to hot... now i tried 0.05 as @Emerikol suggested at first post, and the engine is happy...its no more disturbingly hot and performance is also very good. and very funny, there is no tapping noise ... when i did 0.03-0.04 at cold there was no tapping but when warm it was tapping but now at 0.05 the noise is much better so for now i am happy with 0.05 .) thank you all who tried to help and appreciate for support...
	3