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post #1 of 9 (permalink) Old 06-07-2019 Thread Starter
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A real basket case...

I received a real gem of a gift from a friend it shouldn't take much to reassemble it and put it back into service...
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post #2 of 9 (permalink) Old 06-08-2019
Re: A real basket case...

Looks like a 110cc, what are the numbers & letters on the cylinder cast in??

Empty Pockets Racing: The difficult we do, the impossible takes longer.....
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post #3 of 9 (permalink) Old 06-08-2019
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Re: A real basket case...

Quote:
Originally Posted by EPR View Post
Looks like a 110cc, what are the numbers & letters on the cylinder cast in??
125cc Loncin pitbike engine and looks like they ran into a deadend when it came time to removing the flywheel and the clutch and just bought a new engine.............

I had the same engine on my X181 Streetfighter bike..

My money is on it needing a new shift drum,shift forks and possibly shift drum bearings..

When theyre mounted on pitbikes a lot forget you cannot powershift those transmissions but still manage to force it to shift which puts a lot of stress on the shift forks and the drum...…...



This is what a real basketcase of an engine looks like....Brought back from the dead pretty easily...……..LOL





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Last edited by CAM2; 06-08-2019 at 09:25 PM.
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post #4 of 9 (permalink) Old 06-09-2019
Re: A real basket case...

Which 125cc engine, the 110cc engine, ( 52.4mm bore ), with 56.7mm stroke, 120cc, like the one in my125cc ATV or the real 125cc w/ 54mm bore & 54mm stroke??

Empty Pockets Racing: The difficult we do, the impossible takes longer.....
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post #5 of 9 (permalink) Old 06-09-2019
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Re: A real basket case...

Quote:
Originally Posted by EPR View Post
Which 125cc engine, the 110cc engine, ( 52.4mm bore ), with 56.7mm stroke, 120cc, like the one in my125cc ATV or the real 125cc w/ 54mm bore & 54mm stroke??

The first one with 110cc piston and 56.7mm stroke aka the 122cc and not the 124cc.....

Best part about my streetfighter build was it was a 56mm overbore x 56.7mm stroke which is like 140cc's......Worst part was the crank mounted clutch...

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post #6 of 9 (permalink) Old 06-10-2019 Thread Starter
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What happened to it was the chain came off and busted through the stator cover and busted the hall sensor off the stator housing I have no idea why they took the head and jug off...

i orderd some new gaskets a stator and cover they should be here in a few weeks.

the numbers on the jug are PL-4 124cm3

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post #7 of 9 (permalink) Old 06-11-2019
Re: A real basket case...

People do strange things, lol. Looks like it is the 54/54mm, and as you know measure the bore since its apart. Funny thing is, most 125cc engines I have seen don't have a nut on the valve adj cover caps.

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post #8 of 9 (permalink) Old 06-11-2019
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Re: A real basket case...

Quote:
Originally Posted by MrKitty View Post
What happened to it was the chain came off and busted through the stator cover and busted the hall sensor off the stator housing I have no idea why they took the head and jug off...

i orderd some new gaskets a stator and cover they should be here in a few weeks.

the numbers on the jug are PL-4 124cm3
A few weeks??…….If that's all that's wrong with it I'd have it fixed in a few days...

Numbers on a jug mean virtually nothing with Chinese made stuff...The Chinese are sneaky bold face liars..Right now theyre marking their ships as Vietnamese to import their crap in our country still besides I have a few 50cc 4 stroke casted cylinders that are actually 70cc also to mention I had a few 110cc cylinders that are casted 108cm3 instead of 107cm3...……..

Just by them taking it apart tells me theres a lil more than just changing a few simple broken pieces unless they thought the halls effect mount was part of the engine crankcase and not part of the stator plate attached to the engine crankcase....

I would've just bought a high performance Inner Rotor Kit for it to give it a lil upgrade....Those IRK's make 4 strokes rev like a 2 stroker.............

While its open one mod is to enlarge the oil passage to 2mm's to increase oiling pressure to the topend...….The mod works wonders and makes the engine pretty responsive especially if you run quality grade synthetic oil..

Add a VM24 carb with intake plus a nice Yoshimura pitbike exhaust and that thing will become a pretty nice powerhouse...

https://www.ebay.com/itm/Inner-Rotor...YAAOSwfbRbUYA0

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Last edited by CAM2; 06-12-2019 at 10:23 AM.
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post #9 of 9 (permalink) Old 06-11-2019
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Re: A real basket case...

Quote:
Originally Posted by EPR View Post
People do strange things, lol. Looks like it is the 54/54mm, and as you know measure the bore since its apart. Funny thing is, most 125cc engines I have seen don't have a nut on the valve adj cover caps.
Telling the differences between the different types of 125cc engines is like comparing the Chevy Nova , the Oldsmobile Omega , the Pontiac Ventura and a Buick Apollo...……..LOL

A lot of 125cc engines come both ways with the valvecover cap..It has something to do with the age and actual manufacturer.....Original Honda comes with screw-in valvecover caps and so does my SSR pitbikes…..

Do you see how short this Lifan/Loncin based 125cc engine is???This is a real deal 54mm x 54mm engine...The cylinder is also casted out of steel and not aluminum like the 55.5mm stroke cylinder



Whats funny and factual is the real deal 54mmx54mm bore/stroke engine has about the same horsepower and torque than the 120cc 55.5mm bore engine also for both engines max power and torque have the same rpm's

The last picture I posted below is the same type Lifan engine as the first pic posted except with the two screw holddown valvecover cap and 54mmx54mm bore steel cylinder too...

This is the engine Kitty is working on: Loncin based 120cc engine...




Notice the different shaped slightly longer cylinder with cooling fins oriented differently than the 54mm cylinder..?

These are the specs of the fake 125cc engine...……



When you take 52.4 x 55.5 and do the math the engine actually turns out to be a 120cc...LOL....They sell 120cc Lifan based racing engines and I guess Loncin copied the longer stroke approach seeings the longer stroke could be upgraded to almost a 140cc engine without changing the crank stroke..

Brand new theyre $300.00 shipped...

https://www.ebay.com/itm/125CC-ATV-P...-/231041255699



Heres the info on the Lifan 120cc...…The difference is it has the countershaft mounted clutch...….

Its an upgrade for the CT110cc engine... Its also $550.00 without shipping costs...……..

https://motopieces.net/en/complete-e...ke-manual.html

Theres tons of different 125cc 4 stroke Honda based engines....Look them up..Theres so many different types and variations it will make your head spin especially when you put 125cc electric start engines into the meld...I just posted a few of the non-e-start engines...LOL

Whats funnier is my 2012 KTM EXC500 actually has a 510cc engine and my CR500 was actually 492cc before making it a 540 stroker......

Below is a 125cc Jailing based engine with the clutch on the countershaft which is the better upgrade for the engine Kitty has....Notice the screw-on valvecover cap and the slightly longer different fin configuration cylinder...…
Attached Images
File Type: jpg jailing 125cc.jpg (76.3 KB, 2 views)
File Type: jpg jailing 125cc upgrade.jpg (83.0 KB, 2 views)
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File Type: jpg DSC02116.jpg (165.7 KB, 4 views)

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Last edited by CAM2; 06-12-2019 at 10:37 AM.
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