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I had a bike that had a "spine" in the air intake tube that came undone and turned sideways. Buke soeed went way down though would go up and down occasionally due to the piece moving around. Removed the piece and all good since.

Did u figure the problem?

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.

Led light seems to focus too high. Anyone knows how to lower the headlight?

2023 .03 intake .05 exhaust

Check the valves might be too tight

You want to use Lucas TB zinc break-in oil, pour 1 to 2 oz in the shipping oil, ride around for 10-15 minutes, or 1-2 miles, and flush. Next oil change should be done around 100 miles. At 300 miles You probably couldn't see the metallic flakes, because they got grinded up so bad, they've become small like flour.

I used a 24mm wrench to bend the oem shifter back. I'll also put a LED light in there.

Check the chain tension by sitting on the bike. The chain needs to have <0.5" play when you sit on it, and can't be tight.

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.

Too bad I saw this 4 years later. I would guess the bike is running too lean. It runs richer until it gets hot. There is supposedly a procedure you can do to reset the fuel injection. Zinc is only good during break in. Never put more zinc in the bike after the break in, as regular engine oil has just the right amount. Hopefully you got it figured out by now.

Channel locks on the axle nut? No torque ratchet to tighten it back up? Chain adjustment explanation was great but please buy proper tools.

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?

the TUSK Folding Shift Lever Black/Blue Tip for Yamaha YZ250 1996-1998 fits better. I try both of them. Thanks

Check the TMAP

Thanks.. Any more upgrades?

Is this one push rod or overhead cam?

I have the same bike but it's an apollo (same engine) and I'm at 2800miles and she still runs like new

😂😂😂😂

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.

Go back to carb

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

Are their any universal front covers or body kits for this? I just ordered one but wanted all different small parts for it. I didn't find anything 😅

How many mile did you use that break in oil?

Have you had any valve issues with the kpm

why would you make a video on a windy day? pick a calm day or move inside we can not hear a god damn thing you are saying.( what an idiot)

Holy crap, you can hear the valves tapping! I bet they tightened up on the exhaust side. I have a Honda Grom that keeps getting tight on the exhaust side. I check around every 700 miles or so.

hello what are the gap values ​​for the Lifan gy3b

Most likely the valve clearance needs to be check.

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.

Everyone who gets a Chinabike should immediately check the valve lash. Most of the manufacturers adjust them too tight, so this problem and solution are very common. Also replace the Chinese spark plug, if yours has one, with an NGK. I had a '21 X-pect, great little bike, but traded up to a KPX. Mainly for better highway power and stability, normal-size dualsport rims, and a flat seat. Also a great bike.

Seems like there arre a lot of issues with these chinese bikes.

Tight intake valves, as it gets warm valve expands and reduces fuel air mixture.

calculate how many Ounces are 1.1 Quarts. we have to multiply 1.1 by 32 and divide the product by 1. So for 1.1 we have: (1.1 × 32) ÷ 1 = 35.2 ÷ 1 = 35.2 Ounces. So finally 1.1 qt = 35.2 fl oz.

My lifan only starts when i give it gas once it hits below 1.5 rps it shuts off

Nice upgrades I just did the light.

Nice video. I have the same bike. No issues yet.

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?

Thanks for the info 👍

Any replacement battery ideas for the KPR 200?

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.

Sounds like it's vapor locking a friend of mine had the same problem with his boom Vader so he took the gasket off of the gas cap and then it was fine

My Mustang did the same exact thing. it was the O2 sensor.

Would this be recommended for a Lifan KPM 200

Is your xpect carb or efi?

I sincerely appreciate you showing and teaching us about your bike. I'm torn in getting a tw200 or xt250 or a bike like yours! Convince me I can trust this Chinese made bike?!🙏

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.

Would that shifter fit a kpm200?

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! 👍