How to unrestrict a 2-stoke scooter?

**Ktmsx125** · 3rd May 2014, 16:01

Hey there, dose anyone know how to unrestrict a 2007 2 stroke Az50? Its got no rego and will not be back on the road again, any help full tips?

**Matt_TG** · 3rd May 2014, 16:12

I don't have any specific info for your scooter but you may find information at these forums:

http://49ccscoot.proboards.com/

http://itistheride.boards.net/board/...-scooter-board

**Ktmsx125** · 3rd May 2014, 16:25

Hi there, thanks will have a read

**craisin** · 3rd May 2014, 17:57

http://www.trademe.co.nz/motors/moto...-722328837.htm One of these help

**Ktmsx125** · 3rd May 2014, 18:26

That ones for a 4 stroke, might have a look arounf for a 2 stroke one, cheers

**craisin** · 3rd May 2014, 18:44

http://www.trademe.co.nz/motors/moto...-724395619.htm these have an advance curve in them i have a five wire one on a 2 stroke minarelli i took off the six wire CDI

The sixth wire in most cases is the earth wire for ignition pick up and the CDI disconnects the pick up earth at a certain amount of revs

So if you permantly earth said wire you sidestep the rev limit.

If you dont have a spare CDI you would be better to buy a no rev limit one

**craisin** · 3rd May 2014, 19:15

Originally Posted by Ktmsx125

That ones for a 4 stroke, might have a look arounf for a 2 stroke one, cheers

my blue racig CDI was listed for 4 stroke but it has TZR50 written on it which is a Yamaha 2 stroke so I have used it on 2 and 4 stroke

a 4 stroke sparks every revolution every second spark dont do nothing

**Akzle** · 4th May 2014, 03:29

grab a quart of gasoline, pour it down the muffler and chuck a match after it.
once it's cooled down use a #2 Phillips to stab some holes in it.
replace your restrictive OEM airfilter with a (clean) sock.

**danchop** · 4th May 2014, 10:49

az50s had a washer at the front of the exhaust but that's probably already been taken out?

**local** · 4th May 2014, 11:09

Once you've done the exhaust washer check for a washer between the transmission cones (it lowers top speed)

Other mods you can do:
Pod filter (requires rejetting the carb - not too difficult)
Lighter rollers in the cvt to slow 'upshifting' of the trans
Remove material from the clutch plates to raise engagement rpm

**Ktmsx125** · 4th May 2014, 13:19

Where abouts is the washer between the drive cones? Front or rear one?

**kevfromcoro** · 4th May 2014, 13:37

Originally Posted by Akzle

grab a quart of gasoline, pour it down the muffler and chuck a match after it.
once it's cooled down use a #2 Phillips to stab some holes in it.
replace your restrictive OEM airfilter with a (clean) sock.

Take it off the bike 1st..

Another tip to lighten it up......

Eat less pies.

**sgtp** · 6th May 2014, 15:52

go on ebay and get a barrel/piston kit to raise it to 80cc, remove the snorkel from the airbox, and change the main jet to a 80 or 85 and you will be happy. Kits on ebay are about $150 so I wonder why everyone isnt going this route...

**Akzle** · 6th May 2014, 18:02

Originally Posted by sgtp

go on ebay and get a barrel/piston kit to raise it to 80cc, remove the snorkel from the airbox, and change the main jet to a 80 or 85 and you will be happy. Kits on ebay are about $150 so I wonder why everyone isnt going this route...

well, if you can't afford a real bike...