xl125 engine building

**Ivan** · 30th September 2011, 11:22

Hey Im building my motor to stick in my frame early 70's XL125 with the single piece head I have removed that and am putting on a xr200 cdi ignition head cams etc so im going to have to run total loss ignition as my flywheel will be wrong since its a points setup but was wondering would there be any reason why i couldnt run say a RM80 ignition with a four stroke cdi??? or any other opinions regarding ignition

also what cdi's are you honda loncin etc people running?

**Ivan** · 30th September 2011, 11:28

also have any of you run aftermarket pistons locin etc in these engines i wanna put new rings in

**RDjase** · 30th September 2011, 12:08

Originally Posted by Ivan

Hey Im building my motor to stick in my frame early 70's XL125 with the single piece head I have removed that and am putting on a xr200 cdi ignition head cams etc so im going to have to run total loss ignition as my flywheel will be wrong since its a points setup but was wondering would there be any reason why i couldnt run say a RM80 ignition with a four stroke cdi??? or any other opinions regarding ignition

also what cdi's are you honda loncin etc people running?

Heaps of what fits what here

http://vincentcrabtree.co.uk/XR200.aspx

More bike stuff on his site too

http://vincentcrabtree.co.uk/bikes.aspx

Here is some ignitions

http://newmanz.co.nz/shop/index.php?...index&cPath=66

**Ivan** · 1st October 2011, 21:20

yip you sent me that link ages ago its a good link, I read all of that was just more wondering what everyone else has done ignition wise and im building my own headgasket out of copper sheet what is the thinest i could go

**Ivan** · 19th December 2011, 16:08

also how bigger fuel tank will I need? I have a 3 litre one but its going to be a prick to make it fit nicely and dont want to build a custom tank for this build would 2 litres be enough?

**F5 Dave** · 20th December 2011, 09:08

2l will be enough for 80% of that races one might enter. Not sure how big Andrew's tank was for the GP, probably 3l but it was dry at the end of 40 min. Not prob at a kart track, can build a bigger one later.

**bungbung** · 20th December 2011, 10:28

I put something like this on my Loncin

http://www.trademe.co.nz/motors/moto...-432585851.htm

Can't say it made any difference over the supplied cdi but the blue anodising looks cool.

**bucketracer** · 20th December 2011, 11:32

Originally Posted by bungbung

I put something like this on my Loncin

http://www.trademe.co.nz/motors/moto...-432585851.htm

Can't say it made any difference over the supplied cdi but the blue anodising looks cool.

Could you please post wiring details .....