lifan 138cc with irk and oil slinger

[goodytod]

hi there guys...

i have installed a 138cc motor into my mini and i am now used to the power and want something more.. and i have purchased myself an irk and slinger.. but upon purchase i have been informed that all i need to install into the 138 is the irk only as th 138's dont require the slinger, asthe 138s already has a lightened one??

can someone please clarify this with me.. i dont wanna to the install until i get all the correct info on this

thanks

goody

 

[Worm]

Just take the engine cover off that houses the oil slinger and see if the new one u have is smaller.. if its smaller whack it in!

 

[Sidney]

You don't need a lightened slinger.

 

[ducar.r.spec]

You don't need a lightened slinger.

how would u know???
have u had expierience with either the slinger or irk.........


nah dude wack the new slinger in ur old 1 will be stock

 

[no_crf50_here]

umm is the motor start in any gear, most 138's are just the old style motor in that case - no slinger required.

 

[themountain]

..but if its an old one a irk will bust his engine in notime!

BTW...a IRK don´t do anything to get MORE power...the delivery is only quicker
If you want more uummpf you need to get a bigborekit

 

[no_crf50_here]

Wives tale - never seen an irk stuff a motor. I run an irk in my 138cc motor with out a sling for ages (till motor gearbox died) and i rev the ring hole out of my bikes.

Also fitting an irk DOES give slightly more power. You remove weight from crank = less power requried to spin the crank = more power available for other things, like turnin the cogs...

I'd go as far as saying that if you dynoed the bike befor and after an irk, there would be a noticable gain in HP. I'm not saying 50% increase but surly you'd see a few % difference.

Keen to know mountain how many motors you've been thru to back up your claims.

 

[themountain]

well at least two last season!!
good luck with that! don´t say nobody warned you

 

[no_crf50_here]

well at least two last season!!
good luck with that! don´t say nobody warned you

The question was how many motors not how long you've been playing with bikes.

 

[Worm]

So after reading the replys I reckon my answer is the best hahaha... cause everyone thinks they are an expert in the internet... except me lol

 

[no_crf50_here]

I'm no expert but have been thru more motor configurations/china bikes than most here and I can say from experience that Abuse/incorect fitment of any proformance part is usually the sole reason for a failure. IRK on non-start in any gear motor won't hurt it. (urban myth says that the inbalance between the clutch & IRK/slinger & IRK snaps cranks. Take out your clutch basket & Std Stator flywheel and weigh them - myth dismissed)
What will hurt it is you reving the ******* out of it, once you find that an IRK revs like a twostroke.

 

[themountain]

I'm no expert .....QUOTE]

but for sure you write like you had invented pitbiking..

[QUOTE
Take out your clutch basket & Std Stator flywheel and weigh them - myth dismissed
QUOTE]

.....flywheel inner rotor 140 gr.......Clutchbasket 780 gr.

 

[no_crf50_here]

Again you have completely failed to back up what you have said. I'm over people getting on here and having a bad experience with one thing and claiming it is the worst item/product in the world. If you've had experience (good bad or other wised) with a product - tell the world but don't imply that it is the WHOLE product range unless you've tried at least a few and had the same problem under the same conditions.

As for inventing pitbike are you a complete f*uckwit or what?

And as for experience, I'm 33 (how old are you) been playing with pitbikes for 2-3 years (big bikes add another 10yrs) and have spent well more than 12g on (china) parts alone then there is all the bikes. (see some here )

Why I get dragged into this I don't know. Guess I'm inexperienced at the internet. - My two cents

 

[goodytod]

so?? can someone gimme a straight answer???

 

[chewer]

Dunno bout the 138 sorry. but I do know that an inner rotor gives no more power. Only gets to its peak hp quicker.

 

[Mack]

The story goes..that an inner rotor installed on a crank with a cast clutch basket swinging off the other end, can and will, explode the basket. And billet baskets were/are sold for this purpose. However, this seems to occur just beyond where the majority of China engines are revving too and I have not heard of any failures in them. But have not known of too many mounted on these crank clutch engines either.

 

[no_crf50_here]

The story goes..that an inner rotor installed on a crank with a cast clutch basket swinging off the other end, can and will, explode the basket. And billet baskets were/are sold for this purpose. However, this seems to occur just beyond where the majority of China engines are revving too and I have not heard of any failures in them. But have not known of too many mounted on these crank clutch engines either.

well said (never had a clutch basket die on me, and i rev till valves bounce.)

 

[themountain]

It´s not happening only with the crankmounted clutches...its happening with normal oilslingers also !!

 

[SnItChY]

a lil somthing to ponder

i ran and IR and slinger
IR crapped out so i had to remove it
still run the slinger and no problemo's

pete dont get sucked into it mate cant teach an (ol dog new tricks )hehehe
pull the cover of ya slinger have a look change if you want or dont
it's your choise

 

[Sidney]

From ducar gay spec

how would u know???
have u had expierience with either the slinger or irk.........

Dude you really need to stfu sometimes.

Brian from Maylands has repeatedly said you DO NOT NEED to run a lightened slinger.

www.mso.com.au!!!