Engine swap advice

Rider dad · 06-19-2019, 07:08 PM

So I recently picked up a 2013 Suzuki rmz450 with a blown engine in trade for some labor on a job, and was wondering if anyone here had tried to put a China engine into one of these?

I have been looking at the water cooled 250 engine kit pitster/gpx has for sale, but i won't be starting anything real soon as I'm only 3 weeks out of shoulder surgery and won't even be able to start physical therapy for a couple more weeks.

On the good side that gives me plenty of time to come up with a good plan.
Soo... advice? Experience? I'll take what you can give.
Thanks!

Weldangrind · 06-20-2019, 11:35 AM

I think I'd be inclined to rebuild the Suzuki engine.

Rider dad · 06-20-2019, 10:08 PM

Quote:

Originally Posted by Weldangrind

I think I'd be inclined to rebuild the Suzuki engine.

Yeah when I can I will get it pulled apart and see what it will take to get it rebuilt and go from there.
I guess I was just curious to know if anyone had tried putting in a china engine and how it worked out.
If the Suzuki engine will cost to much to rebuild I may still try a China engine swap and see how it goes.

pete · 06-21-2019, 01:14 AM

Blown engine = ? in your use of the word is....

..

NzBrakelathes · 06-24-2019, 06:30 PM

I’d suggest rebuild the original
The NC250 isn’t anywhere near as powerful as you might like n will cause issues to fit
Kinda expensive in the USA as well

crackerjac · 06-25-2019, 03:42 PM

Rebuild the Zuk

Of topic I put a Zong 250 air cooled into a 05 Honda 450X that didn't have a motor. Only reason is I had both already and Honda motors ate valves all the time in those years. Damn thing fit like a glove with minimal issues. Made a great trail bike. The Zong engines lack power so I geared it down to 13/53 and it work out well.

b44 · 07-19-2019, 05:36 AM

Rebuild the 450, China vs RmZ is night and day, china 230cc awesome reliability but quarter of the power, depends on type of riding aswell,
I'm about to try 230cc in a crf chasis, it slots in ok, but have to see if rear mount top of swing arm lines up

06-19-2019, 07:08 PM	#1
Rider dad Join Date: Jun 2017 Location: Missouri USA Posts: 15	Engine swap advice So I recently picked up a 2013 Suzuki rmz450 with a blown engine in trade for some labor on a job, and was wondering if anyone here had tried to put a China engine into one of these? I have been looking at the water cooled 250 engine kit pitster/gpx has for sale, but i won't be starting anything real soon as I'm only 3 weeks out of shoulder surgery and won't even be able to start physical therapy for a couple more weeks. On the good side that gives me plenty of time to come up with a good plan. Soo... advice? Experience? I'll take what you can give. Thanks!
	0

06-20-2019, 11:35 AM	#2
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I think I'd be inclined to rebuild the Suzuki engine. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	4

06-21-2019, 01:14 AM	#4
pete Join Date: Jan 2012 Location: ChCh , NZ Posts: 2,261	Blown engine = ? in your use of the word is.... .. __________________ 09 XT660R ... 06 TTR250 ... 80 Montesa H6 125 Enduro... 77 Montesa Cota 348 MRR "Malcom Rathnell Replica"... Current resto projects.. 81 Honda CT110... 80 Kawasaki KL250A1... 11 Husaburg TE125 enduro... "sold" along with another 31... Lifan 125 Pitbike.. "stolen" ... KIWI BIKER FORUM...... http://www.kiwibiker.co.nz/forums/content.php All the best offroad rides in NZ... http://www.remotemoto.com/ E-mail... xtpete1@gmail.com Last edited by pete; 06-21-2019 at 06:55 PM.
	1

07-19-2019, 05:36 AM	#7
b44 Join Date: Apr 2016 Location: Australia Posts: 89	450 Rebuild the 450, China vs RmZ is night and day, china 230cc awesome reliability but quarter of the power, depends on type of riding aswell, I'm about to try 230cc in a crf chasis, it slots in ok, but have to see if rear mount top of swing arm lines up
	0

06-24-2019, 06:30 PM	#5
NzBrakelathes Join Date: Jun 2016 Location: Hell Posts: 2,408	I’d suggest rebuild the original The NC250 isn’t anywhere near as powerful as you might like n will cause issues to fit Kinda expensive in the USA as well
	0

06-25-2019, 03:42 PM	#6
crackerjac Join Date: Sep 2016 Posts: 103	Rebuild the Zuk Of topic I put a Zong 250 air cooled into a 05 Honda 450X that didn't have a motor. Only reason is I had both already and Honda motors ate valves all the time in those years. Damn thing fit like a glove with minimal issues. Made a great trail bike. The Zong engines lack power so I geared it down to 13/53 and it work out well.
	1