Whats the concern with the stock piston? I only have about 10 hours on mine but would like to avoid disaster if possible.



Thanks!

 

Whats the concern with the stock piston? I only have about 10 hours on mine but would like to avoid disaster if possible.



Thanks!

No major concern, it is just not ideal for performance or it's potential compression the piston does not reach the cylinder deck height and the dome peaks almost flush with the deck ..so with the extra .6mm and the correct deck height (I hope, firepower can you verify that) this motor should do it's job better and faster...

 

Good news thanks. I'm just using mine as stop gap on the street (lifan stator for lights) while I build something on the bench.



I was suprised how tough mine was to kick; I have been thru 2 cheap kickers but am way pleased so far.

 

That crank is way shorter than the Lifan/Jialing ones I have here The area the sling slides on to is missing on your 150 pics. Damn, I need the crank too, then.

 

.6mm in the hole is no sweat if you use a thin head gasket.

 

Looks like you should be able to convert a stock crank for it. Chop it off and turn a thread on it and you'll be golden. The only issue will be to get oil thing.

 

mmm..there it goes the hope to slap the cover on my 140....

 

Also, first thing you should do is remove that cheapie cheap looking oil filter and replace it with a honda version. TRX125 from 1986 and newer should be the one.

 

.6mm in the hole is no sweat if you use a thin head gasket.

Exactly...But This Motor RIPs and is the Best out of Box Motor so far Ive ever had....and I hate Lifans...:wink:



that Filter looks just like the Ones I use in my Takegawa (Honda Part Number # 15412-HB6-003)

 

Also, first thing you should do is remove that cheapie cheap looking oil filter and replace it with a honda version. TRX125 from 1986 and newer should be the one.

heres the part Number



Honda Part Number # 15412-HB6-003



$6.00 Bucks

 

Looks like you should be able to convert a stock crank for it. Chop it off and turn a thread on it and you'll be golden. The only issue will be to get oil thing.

As long as it's a part-out, might as well pick up the crank too, then it should all work. After a rod swap, of course

 

Terror,

One more round of pics? I'd like to see the inside of the cover. Curious about the oil passage alignment. Got a bare Honda or other China engine or even a gasket to match it up to?

 

you can use a 57mm tb cylinder tbwo418 with ceramic bore on this motor

see link

TboltUSA



and the thin gasket set

see link

TboltUSA

 

hows that for a light slinger ....none!

 

How 'bout the clutch cover gasket? Do the oil holes line up?

 

I am sorry I have been doing a lot of work on this build and needed the motor installed for intake & exhaust mock up (custom made intake manifold & exhaust for the perimeter frame).But I will get you some more pics asap (no one else has pulled the clutch cover off of their lifan150 ?) the inside of the clutch cover looks just like the other china motors I have, as far as the placement of oil passages.

 

this site is claimin the lifan 150 to be putting out 14.5 hp to the rear wheel

does anyone have dyno results on this motor yet??



Pitbike

 

this site is claimin the lifan 150 to be putting out 14.5 hp to the rear wheel

does anyone have dyno results on this motor yet??



Pitbike

who cares....



I Rips thats all I know

 

I do not think it is any faster then my 57x57 jailing....I was hoping it would be

 

this site is claimin the lifan 150 to be putting out 14.5 hp to the rear wheel

does anyone have dyno results on this motor yet??



Pitbike

I don't believe it for a second.

 

I do not think it is any faster then my 57x57 jailing....I was hoping it would be

J-ling got a BV head, cam and high compression? Your 150 is only 4cc bigger, not gonna make much power until a cam and piston swap, and a port job really helps once you get that big a motor breathing heavy.



What's the kicking compression, on a gauge?

 

who cares....



I Rips thats all I know

i agree 100%

i came across that site tho and they were sayin 14.5 hp to the rear wheel and i jus thought it sounded waay too wrong

 

i agree 100%

i came across that site tho and they were sayin 14.5 hp to the rear wheel and i jus thought it sounded waay too wrong

Im also hearing the New Batch of Yx 150 motors are going to be better than they are now....



all's I know for a fact that the Lifan 150cc motor I have (stock) is a lot more Responsive, Pulls harder and is lengths faster than the Yx150 (same gearing and Carb set-up's and Bikes)



and a couple of reasons is the Head and Ign set-up

 

Yah I Thought Mine Was Way Better Than My Buddys Yx

Specially Off The Bottom

But Everyone Said Im Crazy

Now I Have A New Cam And Ported N Polished Head With A Vm26 Carb And That Thing Moves So Nice Now Its Crazy

 

Im also hearing the New Batch of Yx 150 motors are going to be better than they are now....

I HOPE SO! I rode An 08 X4 with a YX 150 and I was very disappointed with the lack of power. My 146 BVH with light weight internals had WAY more bottom end.





On the other hand, I test rode my friend Scott's TB 165, V2 with TB 28mm carb with a BBR U-flow in his Factory Ride OGM 150 pro and all I got to say is



WOOOOOOW! It's night and day!