200cc lifan engine. eeevil kickback

[siMcfixit]

Hello. Firstly thanks to those who pointed me in the general direction of where to get bits for siezed up MtxR. And for making sure I didnt put it in the skip. its currently sulking in the spare room.
Soo. as mentioned before I have a "CG" Style engine in the shed on some old dirt bike. turns out after googling the engine code its a 200cc lifan. with a starter motor on it too. (disconected)
Anyway. get it going.. why not. learn along the way... runs to rich. despite whatever I do with needle or carb settings.. horrible jing ke thing.
Biggest problem. roughly every second kick. nasty noise from engine and the kickstart pops back up really violently.. I have had alsorts of bikes over the years.. and never this. my neighbour has come round to return my knee cap.. so I know its not just me. the only thing I can think of is that the starter gets wound up? Like its stuck permenantly engaged?
sounds mad, but maybee some one on here has had the same?

[Nobby the Bastard]

Is the ignition timing adjustable?
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050

[siMcfixit]

no its a little black box. tho the bloke who sold me it. thought it was a 125 and had replaced said little box. am wondering if it would make a differance if he got one for a 125 and not a 200.
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You will always meet nice people on a Honda.

[Easy-X]

[Nobby the Bastard]

There's no guarantee that the hall sender isn't in exactly the same position in reference to tdc on the different engines.
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050

[siMcfixit]

well theres heaps of compression. thats for sure. when its running its great.tho no matter what I do with fuel air mix, it always seems to be rich. changing the needle position up results in non start. but still think the carb is worn out junk. a few folk swap them out for the mikuni 30mm.
for the sake of a few quid. will get the correct cdi for that engine,just to eliminate that as the cause.
still think that there is something odd going on. doing the valve clearances this morning and said motor does really not like to be turned clockwise at all. that and when it does kick back. am damn sure I can hear the starter spin aswell. odd.
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You will always meet nice people on a Honda.

[Easy-X]

Pull the starter motor entirely... see if owt changes.
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Royal Enfield Continental GT 535, Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter

[siMcfixit]

progress. got my hands on another mtx and between the two have a complete engine with new piston ect. Tho am having trouble to find the correct Torque settings for the cylinder head.. the best I found was 35ft lbs or 47nm.. just doesnt seem right. I can here everyone screaming MANUAL! yep I am doing the same.
if anyone could verify the correct torque settings that would be great..
the rest of it. a grumpy lifan 200 engine found its way into the spare rolling frame and a separate build from scratch. the kickback problem.. valve gaps. got it sorted much better now. onwards.!!
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You will always meet nice people on a Honda.

[jeffyjeff]

some engines utilize a method called "torque turn", where you tighten the head to a moderate torque setting, then turn the bolt an additional angle on top of that, say 60 degrees or 90 degrees. My R1150 requires torque-turn method on the flywheel bolts, and I believe that BMW also uses this method on the head bolts as well.
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History shows again and again how nature points out the folly of men - BOC