Lifan 163FML Valve Clearance??

[jon898]

Hey Guys,

Its time for the post break in valve adjustment on Lifan - Honda XR 200. I thought I had the OHC version 163FML (thats what the seller told me) but from further research i think its the push rod version.

Heres a link from ebay where I got the motor.

http://www.ebay.com/itm/LIFAN-200CC-5-SPD-ENGINE-MOTOR-MOTORCYCLE-DIRTBIKE-ATV-U-/160971043744?pt=Motorcycles_Parts_Accessories&hash=item257a9f33a0&vxp=mtr

Anyways I need the specs for the valve clearance?? I didn't get a manual with the motor. This is my first time adjusting the valves so any tips would be appreciated. Thanks, Jon

[SpudRider]

I suggest you read the excellent, Valve Adjustment Tutorial thread at the following link.

http://chinariders.net/modules.php?name=Forums&file=viewtopic&t=1655

The correct valve lash is undoubtedly mentioned in that thread. ;)

Spud :)

[Weldangrind]

Your motor is indeed a pushrod type, and it's based on the Honda CG125. With all respect to my good friend Spud, this is the correct tutorial for your engine: http://hondacg125.awardspace.com/valve_clearance.htm

[jon898]

Thanks guys,

I ran into that thread already. It gave me the inspiration to adjust my valves myself!! I just didn't see any valve specs specific to my motor.

That motor in the thread is OHC so didn't know if that would make a difference in the adjustment.

Thanks

[Weldangrind]

Perhaps you haven't clicked on the link I shared above. It is the same OHV design as your engine, and you can use those specs. Don't follow the OHC tutorial.

[jon898]

Ok Thanks Weldagrind. I did take a quick peak at it and then again now.

Def looks like my motor but (I'm not trying to question you because I am just a noob lol) same specs even tho its a Honda CG125 motor and mine is the 200cc?

I'll shut up now...

Thanks Guys!

[Weldangrind]

Ask away; we're here to share info / stories / lies with each other.

Yes, I use the CG125 specs on both CG200 and CG230 engines.

[SpudRider]

Your motor is indeed a pushrod type, and it's based on the Honda CG125. With all respect to my good friend Spud, this is the correct tutorial for your engine: http://hondacg125.awardspace.com/valve_clearance.htm
Thanks for setting me straight, Weld. :) I don't want to mislead anyone. ;) I am unfamiliar with the pushrod engines, and I didn't realize the Valve Adjustment Tutorial thread didn't apply to those engines. :roll:

Spud :)

[Weldangrind]

It's probably close enough, but the CG125 is identical. I'm becoming very familiar with them. :lol:

[jon898]

Thanks Guys for the help. Gonna tackle it this weekend. I can hear some ticking (not too bad) but its been a good 12hrs of use from new so im sure it wouldn't hurt to take a peak.

So with the pushrod motor, no maintenance witgh a cam chain obviously. Is there any adjustment on the pushrod needed!?

[katoranger]

The only thing on the pushrod engines to due is adjust the valves. The pushrods are just "sticks". There is no tensioner or anything like that to adjust.

[Weldangrind]

Exactly. In fact, the cam is attached to the cam gear and it meshes directly with the crank gear. The only downside is that one lobe bumps both the intake and exhaust, so performance cam options don't exist.

[SpudRider]

The pushrod system really is simple, and bulletproof. :) Oil starvation to the cylinder head will not destroy the camshaft. I guess the only major problem is you need to split the crankcase to change the camshaft. However, since the camshaft is immersed in oil, I don't think it will wear very quickly. ;)

If I remember correctly, automobile engines used to employ the pushrod system. I guess everyone went to overhead camshafts to increase performance. :?:

Spud :)

[FastDoc]

Nothing wrong with pushrods.

Most all Corvettes ever made except for the last generation ZR-1's use pushrods. The current 620+ HP ZR-1 uses pushrods.

If its good enough for one of the fastest production vehicles ever made in the world it will work on a 200cc trailbike. 8)

[jon898]

Thanks Guys, Ill let you know how I make out!

[jon898]

Another question... I took my bike out for a quick rip in the melting snow and still after letting it warm up for 10 mins... I would give it full throttle and it would bog down. Would this be due to my valves?? Dirty carb??

[Weldangrind]

It's probably the carb, but you can't optimize the tune until the valves are properly set.