Planet Minis

5150 Racing · 08-03-2008, 01:15 AM

Ok, I just got a YX 150 and for $400 shipped it seems to be great so far. Havent set it up on my bike yet ( bent my Frame) But what are some issues with this motor?
INNER rotor kit (irk) i hear it sux dlck
Clutch basket nut
Oil slinger?
Exhaust mounting sucks
What else is wrong with these?
And whats good about it?
Tons of mods
CHEAP!
decent power.
Pease post something, theres not a lot of info but there is a crapload of these motors out there.

crf150r · 08-03-2008, 01:43 AM

I like my brothers yx160 with Inner Rotor.

daimojay · 08-03-2008, 04:04 AM

ive raped the cock off mine, and never had a problem.

dougtrip · 08-03-2008, 05:16 AM

The Gpx 150cc Yx Build Thread!!

it's all right here!

5150 Racing · 08-03-2008, 09:04 AM

How did you guys break in your engine, and which line goes where for the damn oil cooler, or does it matter? And what oil are you guys running?

ROBINSONDB22 · 08-03-2008, 09:22 AM

Quote:

Originally Posted by 5150 Racing

How did you guys break in your engine, and which line goes where for the damn oil cooler, or does it matter? And what oil are you guys running?

I run vr1 20w50 or honda HP4 20w50 they work fine but I also change oil every ride.

As far as breaking in the engine goes I started it let it warm up and did like 5 drag races up and back in a feild changed the oil and called it a day. The bike seems to run better and better every day. Had it for 4 months now and it as good as new!

5150 Racing · 08-03-2008, 07:57 PM

Quote:

Originally Posted by ROBINSONDB22

I run vr1 20w50 or honda HP4 20w50 they work fine but I also change oil every ride.

As far as breaking in the engine goes I started it let it warm up and did like 5 drag races up and back in a feild changed the oil and called it a day. The bike seems to run better and better every day. Had it for 4 months now and it as good as new!

So do you not want to go too easy on it to break it in? how dows that work? everything i have ever gotten new says to wait for a few miles before you give it more throttle.

ROBINSONDB22 · 08-03-2008, 08:01 PM

One guy said it best on here and I'll search for the post and get back to you.

chasetheface123 · 08-03-2008, 08:03 PM

Quote:

Originally Posted by daimojay

ive raped the cock off mine, and never had a problem.

i always knew their was something wrong with you

ROBINSONDB22 · 08-03-2008, 08:04 PM

here you go

Break In Secrets--How To Break In New Motorcycle and Car Engines For More Power

ROBINSONDB22 · 08-03-2008, 08:08 PM

a quote from that website...

What about "heat cycling" the engine ??
There is no need to "heat cycle" a new engine. The term "heat cycle" comes from the idea that the new engine components are being "heat treated" as the engine is run. Heat treating the metal parts is a very different process, and it's already done at the factory before the engines are assembled. The temperatures required for heat treating are much higher than an engine will ever reach during operation.

The idea of breaking the engine in using "heat cycles" is a myth that came from the misunderstanding of the concept of "heat treating".

5150 Racing · 08-03-2008, 08:26 PM

Quote:

Originally Posted by ROBINSONDB22

here you go

Break In Secrets--How To Break In New Motorcycle and Car Engines For More Power

That makes sense yet at the same time it doesnt..... Wouldnt it sieze up? that seems crazy... i will try it i guess. at least if it does sieze i could get that 170 bore kit haha.

5150 Racing · 08-03-2008, 08:29 PM

Anyone else tried this method? I think it makes sense but its a polar opposite way of doing it. Also, whats wrong with the Inner rotor kit? lol no one likes them, but why?

techone · 08-03-2008, 08:30 PM

we have to heat cycle 125gp bikes after we put new top ends, pistions, rings, etc.. if we didnt everything would seize or just get destroyed in a race. heat cycling is just letting your engine warm up the gradualy cool down then warm up and so on.. theres no heat treatment involved...

ROBINSONDB22 · 08-03-2008, 08:31 PM

why would it seize? he's not saying run james stewart laptimes in first gear just ride it like you'd race it. don't over rev it or you could float a valve. like I said ride it like you'd race it and change the oil frequently. DON'T RUN IT WITH THE OIL THAT COMES IN IT!!!!

techone · 08-03-2008, 08:34 PM

i doubt the a fourstroke would seize with improper break in but im sure heat cycling it would prolong the engines life. forsure change that oill CHINESE BREAK IN OIL!

ROBINSONDB22 · 08-03-2008, 08:37 PM

Quote:

Originally Posted by 5150 Racing

Anyone else tried this method? I think it makes sense but its a polar opposite way of doing it. Also, whats wrong with the Inner rotor kit? lol no one likes them, but why?

easy to stall in corners and some have thrown rods. I have a 2lbs flywheel from AHP and love it.

ROBINSONDB22 · 08-03-2008, 08:39 PM

Quote:

Originally Posted by techone

we have to heat cycle 125gp bikes after we put new top ends, pistions, rings, etc.. if we didnt everything would seize or just get destroyed in a race. heat cycling is just letting your engine warm up the gradualy cool down then warm up and so on.. theres no heat treatment involved...

what does it do for the engines?

5150 Racing · 08-03-2008, 08:40 PM

Quote:

Originally Posted by techone

i doubt the a fourstroke would seize with improper break in but im sure heat cycling it would prolong the engines life. forsure change that oill CHINESE BREAK IN OIL!

Yeah thats not even motor oil haha its like cooking oil from pf changs

techone · 08-03-2008, 08:42 PM

lets the rings seat, lets all the parts get all warm n cozy

.. lol its the same idea of breaking in an engine just another way to do it..

08-03-2008, 01:15 AM	#1 (permalink)
5150 Racing PM Newbie Join Date: Jul 2008 Location: Roseville, CA Posts: 49	YX 150 Thread Ok, I just got a YX 150 and for $400 shipped it seems to be great so far. Havent set it up on my bike yet ( bent my Frame) But what are some issues with this motor? INNER rotor kit (irk) i hear it sux dlck Clutch basket nut Oil slinger? Exhaust mounting sucks What else is wrong with these? And whats good about it? Tons of mods CHEAP! decent power. Pease post something, theres not a lot of info but there is a crapload of these motors out there.

08-03-2008, 01:43 AM	#2 (permalink)
crf150r 3rd Gear Member Join Date: Dec 2006 Location: Austin, Texas Posts: 2,293	Re: YX 150 Thread I like my brothers yx160 with Inner Rotor.

08-03-2008, 04:04 AM	#3 (permalink)
daimojay 1st Gear Member Join Date: Apr 2008 Location: australia Posts: 186	Re: YX 150 Thread ive raped the cock off mine, and never had a problem.

08-03-2008, 05:16 AM	#4 (permalink)
dougtrip 3rd Gear Member Join Date: Dec 2005 Location: North East Ohio Posts: 1,607	Re: YX 150 Thread The Gpx 150cc Yx Build Thread!! it's all right here!

08-03-2008, 09:04 AM	#5 (permalink)
5150 Racing PM Newbie Join Date: Jul 2008 Location: Roseville, CA Posts: 49	Re: YX 150 Thread How did you guys break in your engine, and which line goes where for the damn oil cooler, or does it matter? And what oil are you guys running?

08-03-2008, 08:01 PM	#8 (permalink)
ROBINSONDB22 3rd Gear Member Join Date: Feb 2007 Location: The Dark Side of Eternia Posts: 1,675	Re: YX 150 Thread One guy said it best on here and I'll search for the post and get back to you. Last edited by ROBINSONDB22; 08-03-2008 at 08:09 PM.

08-03-2008, 08:04 PM	#10 (permalink)
ROBINSONDB22 3rd Gear Member Join Date: Feb 2007 Location: The Dark Side of Eternia Posts: 1,675	Re: YX 150 Thread here you go Break In Secrets--How To Break In New Motorcycle and Car Engines For More Power

08-03-2008, 08:08 PM	#11 (permalink)
ROBINSONDB22 3rd Gear Member Join Date: Feb 2007 Location: The Dark Side of Eternia Posts: 1,675	Re: YX 150 Thread a quote from that website... What about "heat cycling" the engine ?? There is no need to "heat cycle" a new engine. The term "heat cycle" comes from the idea that the new engine components are being "heat treated" as the engine is run. Heat treating the metal parts is a very different process, and it's already done at the factory before the engines are assembled. The temperatures required for heat treating are much higher than an engine will ever reach during operation. The idea of breaking the engine in using "heat cycles" is a myth that came from the misunderstanding of the concept of "heat treating".

08-03-2008, 08:29 PM	#13 (permalink)
5150 Racing PM Newbie Join Date: Jul 2008 Location: Roseville, CA Posts: 49	Re: YX 150 Thread Anyone else tried this method? I think it makes sense but its a polar opposite way of doing it. Also, whats wrong with the Inner rotor kit? lol no one likes them, but why?

08-03-2008, 08:30 PM	#14 (permalink)
techone PM Newbie Join Date: Jul 2008 Posts: 37	Re: YX 150 Thread we have to heat cycle 125gp bikes after we put new top ends, pistions, rings, etc.. if we didnt everything would seize or just get destroyed in a race. heat cycling is just letting your engine warm up the gradualy cool down then warm up and so on.. theres no heat treatment involved...

08-03-2008, 08:31 PM	#15 (permalink)
ROBINSONDB22 3rd Gear Member Join Date: Feb 2007 Location: The Dark Side of Eternia Posts: 1,675	Re: YX 150 Thread why would it seize? he's not saying run james stewart laptimes in first gear just ride it like you'd race it. don't over rev it or you could float a valve. like I said ride it like you'd race it and change the oil frequently. DON'T RUN IT WITH THE OIL THAT COMES IN IT!!!!

08-03-2008, 08:34 PM	#16 (permalink)
techone PM Newbie Join Date: Jul 2008 Posts: 37	Re: YX 150 Thread i doubt the a fourstroke would seize with improper break in but im sure heat cycling it would prolong the engines life. forsure change that oill CHINESE BREAK IN OIL!

08-03-2008, 08:42 PM	#20 (permalink)
techone PM Newbie Join Date: Jul 2008 Posts: 37	Re: YX 150 Thread lets the rings seat, lets all the parts get all warm n cozy.. lol its the same idea of breaking in an engine just another way to do it..

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)