2010 250 Engine Swap

Duneger · May 6th, 2018, 12:37 PM

Hello, I recently bought a 2006 ninja EX250F. It needed a new engine, so I did some research on the swap from a new gen engine to a pre-gen frame.

Everything is pretty much set except the breather tube on the top of the valve cover. I'm assuming its for a PCV system. Is that correct, can I just go out and get a generic PCV valve, tubing and attach it to my air box?

Dave Wolfe · May 6th, 2018, 02:29 PM

Just block off the smog plate. Then its just like the pre gen cyl head.

choneofakind · May 6th, 2018, 02:41 PM

It's not a PCV valve. The "PCV" breather is what goes from the gearbox area into the bottom of the airbox.

The top of the head has the KLEEN Air system... it's basically fresh air injection at the exhaust ports. Allows the cats some air for further burn, dilutes the mixture a little to make it look less bad with a sniffer. Plug it. Nothing bad happens.

Duneger · May 6th, 2018, 04:58 PM

Uff-da, that could have been a waste of time. Thank you guys for the explanation and the suggestion!

May 6th, 2018, 12:37 PM	#1
Duneger ninjette.org newbie Name: DAN Location: Lynnhood, WA Join Date: Mar 2018 Motorcycle(s): 1987 Honda Magna 2000 Buell M2 Cyclone 2006 Kawasaki Ninja EX250 Posts: 2	2010 250 Engine Swap Hello, I recently bought a 2006 ninja EX250F. It needed a new engine, so I did some research on the swap from a new gen engine to a pre-gen frame. Everything is pretty much set except the breather tube on the top of the valve cover. I'm assuming its for a PCV system. Is that correct, can I just go out and get a generic PCV valve, tubing and attach it to my air box?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Engine Swap help	cpayton0	1986 - 2007 Ninja 250R Tech Talk	3	October 24th, 2017 03:19 PM
engine swap	iflylow	General Motorcycling Discussion	4	October 24th, 2017 12:30 PM
ninja 250 engine swap	tellmewhy!	General Motorcycling Discussion	11	May 25th, 2016 06:38 AM
Engine swap 2010 Ninja into a 1997	motorbikerx	2008 - 2012 Ninja 250R Tech Talk	2	November 5th, 2014 05:56 AM
86' engine swap	Birthdayninja86	1986 - 2007 Ninja 250R Tech Talk	12	March 26th, 2012 08:30 AM

May 6th, 2018, 02:29 PM	#2
Dave Wolfe CCS Amateur #501 Name: Dave Location: Iowa Join Date: Jun 2015 Motorcycle(s): '09 250 SE 'Booger' Posts: 406	Just block off the smog plate. Then its just like the pre gen cyl head.

May 6th, 2018, 02:41 PM	#3
choneofakind ninjette.org certified postwhore Name: . Location: . Join Date: Feb 2011 Motorcycle(s): . Posts: Too much. MOTM - Feb '13, Feb '14	It's not a PCV valve. The "PCV" breather is what goes from the gearbox area into the bottom of the airbox. The top of the head has the KLEEN Air system... it's basically fresh air injection at the exhaust ports. Allows the cats some air for further burn, dilutes the mixture a little to make it look less bad with a sniffer. Plug it. Nothing bad happens.

May 6th, 2018, 04:58 PM	#4
Duneger ninjette.org newbie Name: DAN Location: Lynnhood, WA Join Date: Mar 2018 Motorcycle(s): 1987 Honda Magna 2000 Buell M2 Cyclone 2006 Kawasaki Ninja EX250 Posts: 2	Uff-da, that could have been a waste of time. Thank you guys for the explanation and the suggestion!