Lifan 200cc Valve Lash Adjustment
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- เผยแพร่เมื่อ 3 ต.ค. 2024
- Skip to 2:00 to get straight to valve lash adjustment! Valve lash specs and tools needed below!
Here's the Valve Lash specs on these 197cc Lifan motors, and how to check/set it!
Lifan 197cc engine - Used in Lifan X-Pect, Lifan KPR200, Lifan KPM200, etc.
Intake Valve Lash - Between 0.06mm and 0.08mm. I split the difference and go for 0.07mm
Exhaust Valve Lash - 0.05mm
You will need a 10mm socket, 13mm or 1/2" wrench, 10mm wrench, and an H5 allen/hex key or socket (for side covers).
Should take you 20 minutes or less start to finish if you have all your tools laid out and the gas tank is already empty.
Good luck!
Nice video! One tip: no need to remove the gas tank. Just undo the rear bolt and prop it up on a small piece of 2x4 or whatever is around. You can get the valve cover off pretty easily.
-- Exhaust is always looser! Because the exhaust valve gets hotter. Most likely that was the original problem. Reverse those measurements: .05mm for intake and .06 - 08mm for exhaust. Whoever gave them to you that way doesn't know what he is doing.
-- For an emergency field repair, yeah you can bump the motor to get to the compression stroke. But for doing it at home with all your tools handy, do it the right way. Pull the spark plug; pull the big round left cover on the lower left of the motor to access the crank bolt; pull the small inspection cover above it to find TDC. This is an essential task every motorcyclist should know how to do. When you do it in the field, you still should let it sit overnight to cool down so you get accurate readings.
-- The problem with using the motor bump method is that the motor might not be exactly on compression stroke TDC. Highly likely it isn't at TDC actually. One of the valves might be slightly on its cam ramp, either going on or coming off, so that when you measure the gap you would have an inaccurate reading. Slightly loose on the exhaust won't hurt anything probably, since the exhaust valve stem expands more than the intake one does, but slightly loose on the intake means loss of power. You will wonder what the problem is since you "just adjusted the valves". But did it wrong.
--Better than bumping the motor as you did would be to pull the little inspection cover and turn the motor over in a higher gear while moving the bike forward slowly. Use the inspection port and a flashlight to ensure you are actually at TDC, with both valves loose (there are two TDCs in a 4-stroke, and one is the wrong one). You would of course pull the spark plug so there's no compression. But it's much easier to turn the crank, and control it, with a breaker bar and the right socket.
Anyway you can make a video on this
Yea this is a tad bit too complicated to eolain thriugh text for brand new riders
Someone who recently start doing biking and want to learn motorbike mechanics.
This is very useful information. We'll explained
Appreciate you doing this it's going to help a lot of people out
Just wanted to write and say thanks for this video! My Lifan xpect started doing the exact same thing, and thanks to your video, I was able to fix the issue! 👍
hey. was the valve lashing the issue?
Mine went out from plowing snow and taking a hard bump on the bank. Thank you I was so lost. Tried every fckn thing
I'd recommend putting a wrench on the adjustment screw when you are tightening the lock nut so it doesn't spin as you tighten. That's why it has the square top.
Just heads up motorcycle valves tighten over time so it's usually a good idea to set them at the most lose measurement.
Nice video. I have the same bike. No issues yet.
I wonder if all the plastics and tank removal is necessary. On all other bikes it's .02 on the intake, and .03 on the exhaust.
There should also be access to a nut that will rotate the engine.
great video. I love this bike. I have the Black & Red.
Dont you need to rotate the engine counter clockwise and align it with T mark, so it can top dead center before you can check the valves
No sir, the "slack" in the valvetrain is the same at any engine position as long as the valve in question is not actively being pressed by the pushrod, so as long as there's no tension on the pushrod and rocker arm you can set the valve lash.
@@chinabikeadventures1166 thanks. I didn't know that. I have san gabriel 250 and service manual needs it to aligned with T mark before starting valve checks with feeler gauge.
@@techten1012 You could if you wanted to follow the instructions word for word, it wouldn't hurt anything. But I've put over 1,000 miles on my bike since this video was made and it's running like a top so setting the marks all up first definitely isn't a "must do"
@@chinabikeadventures1166 thanks. Good to know. Do you still have kpm200 cafe race? It was in one of videos.
@@techten1012 Sure do! Just put sequential turn signals on it a few days ago, it's got about 750 miles on it now, I'll make a video on both bikes soon
They have a set of three valve lash tools to help make adjustments much quicker because trying to tighten the nut without holding the other section will just make it turn in to tight and you have to keep loosening and tightening a few times. What year is your bike?
I have the same motorcycle but with a carb I am from Latin America and it is a good machine. Will you make more video of the X-Pect ?.
Yes I will - subscribe! ☺
The intake clearance is actually .003mm just read it in the owners manual
The owners manual says that but it's outdated. Lifan reached out and emailed me the specs I posted directly.
No need for taking the fuel tank off.
Also totally possible that you just have to take off 1 side fender, not both, def not the entire bike cover.
So I read the manual and it states .03mm intake and .05mm exhaust.
Look through the comments here, the manual is outdated. The specs I give in the video were emailed to me straight from Lifan.
This is in no way a criticism of @Chinabike adventures :After 700 mi, during which my Xpect 200 ran great, I did this adjustment. Now it’s tapping, making smoke and losing power when I accelerate. Evidently I did some little thing wrong. And, if your a first timer like me, you may benefit from some experienced help.
I've been reading about the valve adjustment.... You did the adjustment on the wrong stroke
@@markbd9775 you’re correct, that seems to be part of what I was doing wrong. I did the job again at the TDC where I could move the rocker arms. Though I used a gap of .3 on the intake and .5 on the exhaust since that is what my owners manual specified. Now it’s running great.
@@markbd9775 you are correct. After I figured that out, I got it right.
@@mikesblkmstngblltt you adjust on the compression stroke meaning watch for your intake valve to open then close at that point look out for yout tdc mark
Very informative! Would you recommend the Lifan X-pect to a beginner rider?
Absolutely! The riding position is very comfortable, and the bike is very forgiving in the sense that it makes enough power to commute on comfortably, without having enough power to throw you off the back. It's a fantastic bike for the money, I'd high recommend it if you're considering getting into motorcycles!
Just ordered my xpect yesterday. Do you still have yours? How is it holding up? Should I adjust valves before riding. Very new to this. Any advice would be greatly appreciated.
Is this one push rod or overhead cam?
Yo Bossman, what top speed you getting with that bad boy?
About 60 mph is all she really wants, cruising at 50-55 is a lot easier on her. Give me a day or two, I'm going to make a max MPH video in stock from, then a max MPH with a 17 tooth front sprocket, then a max MPH with a 17 tooth front and 42 tooth rear!
Chinabike Adventures sweet! I was looking at this or the Orion rxb250l, the fuel injection makes me think this ones gonna be better😆
@@DeskPop it definitely feels more responsive over the whole RPM range, and when you let off the throttle the bike can almost completely cut the EFI off which helps it get much better MPG. I'm getting 80+ mpg while many similar bikes with a carb are getting more like 50 - 60 mpg. I also live in the mountains and my ride can have a 1000+ foot change in elevation. I definitely notice the bike feels the same at all elevations because the computer is compensating for the elevation change, versus a carb which can't change and will start to run either lean or rich at different elevations.
Any videos about that KPM200 in the background? I have one on the way and haven't been able to find much about it online.
Great vid, my x-pect will be here tomorrow. Did this configuration work well?
@Redrum lol good question, the bike is amazing. I did have to adjust the valves. They were locked down completely. (.06mm) The bike is fantastic. I dont like that it has a steel welded exhaust and you cant adjust the rear shock. But great bike
2023 .03 intake .05 exhaust
Does anybody know what size rear shock is on the KPM 200? I am needing a replacement and want to do a heavy duty shock. Also anybody know what rear sprocket would be better for that bike. I hear it's a 49 tooth would a 45 give better low end?
I believe you can find some parts on Ali express, but I'm not sure if there's an aftermarket rear shock to upgrade to heavy duty. I just bought the kpm 200 myself, and I'm almost positive that you can adjust the stock rear shock to ride higher or lower based on the amount of weight on the bike. As far as the sprockets, yes. It does come stock with a 49 tooth sprocket in the rear. Changing to a 45 tooth would take away some of your acceleration, but would slightly increase your top speed. The 49 tooth gives you great pick up from a stop, but typically tops out at about 70 mph in 6th gear. Think of it as a mountain bike, the bigger sprocket in the back, the easier it is to pedal, but the faster you have to pedal to keep the same speed. The smaller the rear sprocket, the harder it is to get going, but once up to speed, you go alot faster.
@@Branman1583 After some time I think I'll leave the sprockets alone. The bike is so weak it isn't logical to make it go any slower it would be dangerous. As far as the shock you can adjust 3 spots for more height but the shock is more of a street bike style and is very tight. I turned mine into a scrambler with engine guards and dirt tires so I want a soft long stroke shock for dirt riding. My kidneys will thank me.
Hola buenas tardes una pregunta adonde puedo conseguir el manual de mantenimiento de la moto lifan 200 r
Did adjusting the valves fix the problem?
hello what are the gap values for the Lifan gy3b
My lifan only starts when i give it gas once it hits below 1.5 rps it shuts off
Sounds like carburetor jetting issue
How did you remove the gas tank? Mine is vibrating at certain Rpms and making a rattling noise, was gonna try and pull it off and cinch it back down right, couldn't really figure out how to pop the tank off though.
Take your seat off, and underneath you'll see one bolt that holds the tank down. Towards the front of the tank are two rubber pads to prevent rattling, one may have fallen off of become misaligned
@@chinabikeadventures1166 good call. I figured it out in the wee hours of the morning last night. Pretty weird way to attach the tank.
Any replacement battery ideas for the KPR 200?
Bro....what is the intek and exoust valve clearance on lifan KPR 165 cc EFI
Have you had any valve issues with the kpm
Noce upload I have a 200cc 163fml and I can't get the motor to rotate down so I can access the valves. I took the motor mount off and even lossened a few other bolts so it could pivot, but it wouldnt move. Any ideas?
Hey did you ever have any luck with this, or are you still stuck?
@@chinabikeadventures1166 Nope, I'm going to have my cousin look at it, lol
How is your xpect holding up?
There's no valve cover gasket needed?
No sir, it has a reusable O ring style gasket.
@@chinabikeadventures1166 Thank you!
You may want to check your specs one more time. 99.99% of the bikes/engines I have ever worked on since about 1963 have had larger exhaust valve clearance than the intake valve clearance. I think you swapped numbers. After watching the other video where the engine shut down intermittently, I would have bet you had a fuel supply problem. The vent tube to the tank got disconnected/connected when you removed the tank. BettaNickel that was the actual 'fix', not the valve adjustment. Did you check for the problem after removing the tank and messing with the electrical connections underneath(and the vent tube...)? Bet it was fixed then. You can test by disconnecting the vent tube. Only from a bit of reading, it is actually a pressure tube, so the in-tank pump can build pressure. If not that, then it is a vent tube to allow air into the tank to replace fuel that has flowed out. You may have gotten a 'fix' by removing and re-installing the gas cap when you had the problem. I don't know the EFI system, but that engine sounded as if it was pumping air through, but was not getting any fuel to burn. How is it running now? tom
great tip bravo
@no Likely not. Clearance on some increases wigh heat. More likely is a lean idle mix that just won't fire with a cold engine. Either add some choke, richen the mix, or ifle a bit more before riding.
@no Given no adjustment nor a lever to manually 'choke' the engine and enrich the mixture, the alternative, IMO, is to wait a minute after starting, and put on gloves, goggles, head protection, adjust the mirrors, make sure all is intact, etc, before putting in gear and riding off. Most EFI have a temp sensor that informs the controlling ECM, and a 'fast cold idle' that will bump the throttle until the engine reaches a temp where it is no longer necessary. You may want to check that the throttle control(if there is an electric/electronic kicker) is functional, AND check that if there is a temp sensor that it is functioning. Most temp sensors will change resistance as the temperature rises from cold. Either increase or decrease... You can measure with a DVOM if you find one. tom
Is there a valve cover gasket?
Sure is, it's a rubber on ring style gasket that rides in a groove made into the cover.
I didnt see it in the video i just adjusted my valves and i didnt need to take the top motor mount out.
Is your xpect carb or efi?
They're all EFI.
@@chinabikeadventures1166 thank you for the quick response and the uploaded videos. Would the Lifan KP and KPM 200 essentially carry the same engine as the Xpect, except for the 6 speed transmission?
thats wrong exhaust always has a larger gap.
2,500 miles later and its still running like a dream set up as in the video. The company that makes the engine emailed the settings in the video directly to me, so I'd have a tendency to believe they're right.
@@chinabikeadventures1166 face palm
😂😂😂😂
you need to hold the adjuster screw when doing up the locknuts as they will tighten up when you do the lock nuts hence your issue in the video
you didn't need to adjust your intake then