Kit 200CC to upgrade the Yamaha dtr 125

[2stroketerry]

Hi @Louis-James parts are going on an 03 dtr and already fitted a 4 degree advanced woodruff key i made. The cylinder, head and powervalve have all just been custom made by BAracing in Portugal and all the porting a lot higher spec than an old 3xp cylinder for example. They build a lot of quick bikes with lots trophies for 1/4 mile records etc, they build a dt 100cc that will do 186kph and power wheelie in every gear.

[Louis-DT-WR]

@2stroketerry what was the cylinder originally? 3xp? Does the head have frame mount? I'd be interested in a spare head for my spare brand new 3xp cylinder (nickasil)
Very nice stuff

[Louis-DT-WR]

@2stroketerry said in Kit 200CC to upgrade the Yamaha dtr 125:

Hi @Louis-James parts are going on an 03 dtr and already fitted a 4 degree advanced woodruff key i made. The cylinder, head and powervalve have all just been custom made by BAracing in Portugal and all the porting a lot higher spec than an old 3xp cylinder for example. They build a lot of quick bikes with lots trophies for 1/4 mile records etc, they build a dt 100cc that will do 186kph and power wheelie in every gear.

I have one of these spare somewhere from before

[2stroketerry]

Here is BAracing testing an Athena 170 they just built.
https://www.facebook.com/TeamBARacing/videos/990810477764205/
A friend had a spare 3xp head a while ago will see if still has it for you

[Louis-DT-WR]

Are you running a supermoto?
I find my 200 scary as the front wheel is hard to Keep down in 1-3 gears.
Any more pictures of your project? What carb will you run?

[Calum]

Yeah fair play, those lads over in Portgual know their stuff.

[Glynn123]

Interested in doing a similar thing with the woodruff key on my 125 bore Dt, wonder how big the affects of 4 degree advance are? Much loss in engine life also?

[Calum]

@glynn123 It's advancing the whole ignition system which is less than ideal. Increasing the risk of detonation and pointless if you just get an aftermarket ignition system since you can alter the spark electronically.

[jonne123]

Where i can buy one link?

[theportingmaster]

Team BARacing. https://www.facebook.com/groups/1491149367841270/