Engine upgrades!!

NickEvans · 03-14-2013, 08:03 AM

hey guys, i was wondering if anyone knows what kind of mods you can do and what fits these bikes for parts i have a 2008 250 gio im not sure how to find out the x31 or x37 stuff, still new to these bikes and trying to figure them out :P any help would be greatly appreciated. ive checked the numbers that were on the frame where the folks are but nothing that helps there for finding out what this bike really is.

P.S sorry for my spelling and errors im not the best at English

Weldangrind · 03-14-2013, 10:27 AM

Feel free to post pics, and we'll go from there.

NickEvans · 03-14-2013, 10:48 AM

i just took some pictures actually

was going to paint it up and clean it some ill post them soon

NickEvans · 03-14-2013, 01:35 PM

heres a couple of pictures

dont mind the mess

https://fbcdn-sphotos-h-a.akamaihd.n...93c3fdf585f325
https://fbcdn-sphotos-h-a.akamaihd.n...07aa46b7f5bad9
https://fbcdn-sphotos-h-a.akamaihd.n...cd895756eae0c4

the tires are 16" in the back and 19" in the front. this bike has been through alot by the looks of it:P but ill clean it up give it new paint and fenders.

i have new grips for the handle bar and just ordered the tubes for the tire and the front sprocket 12 tooth and a new chain and a new rear sprocket

Weldangrind · 03-15-2013, 12:13 AM

To me, you have the perfect model. USD forks, pushrod motor, aluminum rims, decent swingarm and I think the header pipe is stainless. Good score!

See if a magnet will stick to the header pipe; if it doesn't, you have the rare stainless pipe.

NickEvans · 03-15-2013, 02:40 PM

whats USD mean? and it is stainless the magnet didn't stick to it. so when you say rare,how rare? will this help identified the model of bike this is?

FastDoc · 03-15-2013, 02:57 PM

Up Side Down. Also called male slider.

NickEvans · 03-15-2013, 03:10 PM

that doesn't sound to good lol whats the differences between USD or normal?

FastDoc · 03-15-2013, 03:31 PM

For a 200cc trailbike really no functional difference. For a heavier more powerful bike the USD forks offer higher torsional stiffness at the same weight, with lower unsprung weight. Plus they look cooler. :wink:

NickEvans · 03-15-2013, 03:39 PM

that's good to know and yes they do look nice:P how can you tell the differences between them? anyone have any ideas what model this bike is yet, i know its a 250 but that's it lol o and is there a specail way you time these bikes?

FastDoc · 03-15-2013, 03:45 PM

For a 200cc trailbike really no functional difference. For a heavier more powerful bike the USD forks offer higher torsional stiffness at the same weight, with lower unsprung weight. Plus they look cooler. :wink:

Weldangrind · 03-15-2013, 09:38 PM

Quote:

Originally Posted by NickEvans

that's good to know and yes they do look nice:P how can you tell the differences between them? anyone have any ideas what model this bike is yet, i know its a 250 but that's it lol o and is there a specail way you time these bikes?

The differences with USD forks? They're upside down. Google some images of USD and coventional forks, and you'll spot the differences.

Your bike is probably an X31, but don't focus on that. What's more important is that you have all of the good stuff.

The stainless header is rather rare; most of the Gios had steel headers. It'll never rust.

NickEvans · 03-15-2013, 09:43 PM

they do look nicer

good point

so any ideas for upgrades? ive got a couple things on order now for the drive but how about valves or cams pistons? stuff along those lines any ideas there?

Weldangrind · 03-15-2013, 10:03 PM

Set your valves. That's it for engine maintenance.

There aren't any performance cam options, and I wouldn't bump the compression, because you'll just break the kicker.

You already have an excellent exhaust, and you probably have a Mikuni carb (please let us know). Check the airbox, and I'm sure you'll find it to be junk. I'd figure out how to run a better quality filter, like this one: http://www.ebay.ca/itm/42mm-Air-Filt...93940d&vxp=mtr

If you really want to play with the motor, you can port and polish the intake and exhaust. That might be worth a little bump in power.

NickEvans · 03-15-2013, 10:22 PM

what do i have to set the values to? .003? and i do have a mikuni carb :P the air box actually seems to have a half decent filter on it ill double check i never really looked it closely. port and polish cant that be quite risky if i have never done it before? i also have a picture of my sub-frame i would like to show you it looks like they cut it off at some point but i might be wrong. i cant mount my seat to it for some reason they had screwed the seat down to the sub-frame with self threading screws lol.. by the sounds of things i got a good deal for 75 dollars

i read how to post photos

sorry for the previous ones :P

03-14-2013, 08:03 AM	#1
NickEvans Join Date: Mar 2013 Posts: 21	Engine upgrades!! hey guys, i was wondering if anyone knows what kind of mods you can do and what fits these bikes for parts i have a 2008 250 gio im not sure how to find out the x31 or x37 stuff, still new to these bikes and trying to figure them out :P any help would be greatly appreciated. ive checked the numbers that were on the frame where the folks are but nothing that helps there for finding out what this bike really is. P.S sorry for my spelling and errors im not the best at English
	0

03-14-2013, 10:27 AM	#2
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Feel free to post pics, and we'll go from there. __________________ 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
	0

03-15-2013, 12:13 AM	#5
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	To me, you have the perfect model. USD forks, pushrod motor, aluminum rims, decent swingarm and I think the header pipe is stainless. Good score! See if a magnet will stick to the header pipe; if it doesn't, you have the rare stainless pipe. __________________ 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
	0

03-15-2013, 02:57 PM	#7
FastDoc Join Date: Mar 2009 Location: Southeastern Washington desert Posts: 14,761	Up Side Down. Also called male slider. __________________ Happy to serve.
	0

03-15-2013, 03:31 PM	#9
FastDoc Join Date: Mar 2009 Location: Southeastern Washington desert Posts: 14,761	For a 200cc trailbike really no functional difference. For a heavier more powerful bike the USD forks offer higher torsional stiffness at the same weight, with lower unsprung weight. Plus they look cooler. :wink: __________________ Happy to serve.
	0

03-14-2013, 10:48 AM	#3
NickEvans Join Date: Mar 2013 Posts: 21	i just took some pictures actually was going to paint it up and clean it some ill post them soon
	0

03-14-2013, 01:35 PM	#4
NickEvans Join Date: Mar 2013 Posts: 21	heres a couple of pictures dont mind the mess https://fbcdn-sphotos-h-a.akamaihd.n...93c3fdf585f325 https://fbcdn-sphotos-h-a.akamaihd.n...07aa46b7f5bad9 https://fbcdn-sphotos-h-a.akamaihd.n...cd895756eae0c4 the tires are 16" in the back and 19" in the front. this bike has been through alot by the looks of it:P but ill clean it up give it new paint and fenders. i have new grips for the handle bar and just ordered the tubes for the tire and the front sprocket 12 tooth and a new chain and a new rear sprocket
	0

03-15-2013, 02:40 PM	#6
NickEvans Join Date: Mar 2013 Posts: 21	whats USD mean? and it is stainless the magnet didn't stick to it. so when you say rare,how rare? will this help identified the model of bike this is?
	0

03-15-2013, 03:10 PM	#8
NickEvans Join Date: Mar 2013 Posts: 21	that doesn't sound to good lol whats the differences between USD or normal?
	0

03-15-2013, 03:39 PM	#10
NickEvans Join Date: Mar 2013 Posts: 21	that's good to know and yes they do look nice:P how can you tell the differences between them? anyone have any ideas what model this bike is yet, i know its a 250 but that's it lol o and is there a specail way you time these bikes?
	0

03-15-2013, 03:45 PM	#11
FastDoc Join Date: Mar 2009 Location: Southeastern Washington desert Posts: 14,761	For a 200cc trailbike really no functional difference. For a heavier more powerful bike the USD forks offer higher torsional stiffness at the same weight, with lower unsprung weight. Plus they look cooler. :wink: __________________ Happy to serve.
	0

03-15-2013, 09:43 PM	#13
NickEvans Join Date: Mar 2013 Posts: 21	they do look nicer good point so any ideas for upgrades? ive got a couple things on order now for the drive but how about valves or cams pistons? stuff along those lines any ideas there?
	0

03-15-2013, 10:03 PM	#14
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Set your valves. That's it for engine maintenance. There aren't any performance cam options, and I wouldn't bump the compression, because you'll just break the kicker. You already have an excellent exhaust, and you probably have a Mikuni carb (please let us know). Check the airbox, and I'm sure you'll find it to be junk. I'd figure out how to run a better quality filter, like this one: http://www.ebay.ca/itm/42mm-Air-Filt...93940d&vxp=mtr If you really want to play with the motor, you can port and polish the intake and exhaust. That might be worth a little bump in power. __________________ 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
	0

03-15-2013, 10:22 PM	#15
NickEvans Join Date: Mar 2013 Posts: 21	what do i have to set the values to? .003? and i do have a mikuni carb :P the air box actually seems to have a half decent filter on it ill double check i never really looked it closely. port and polish cant that be quite risky if i have never done it before? i also have a picture of my sub-frame i would like to show you it looks like they cut it off at some point but i might be wrong. i cant mount my seat to it for some reason they had screwed the seat down to the sub-frame with self threading screws lol.. by the sounds of things i got a good deal for 75 dollars i read how to post photos sorry for the previous ones :P
	0