building xr80 for son

[yamahond]

Can anyone help me with previous experience on how to performance enhance the old 76 xr 75 or the 82 xr 80. I want to build up one of the bikes for my son but it will need a bit more go because he is used to riding the old 82 cr.

 

[Oregon Trail]

How much money do you want to put into the XR's? It will be hard to match the performance of a CR anyway. I have a 73 XR that's bored, stroked, SL125 carb, CR80 front end, T&M header, performance cam and extended swingarm. (I'm looking for an electronic ignition) I'd start with a big bore kit and go from there. I have a stock 82 XR that's just plain old fun to ride around. Look at Powroll to see what they have and prices, that's who I used :aj: