NSR50 project. The never ending learning experiment

NSR50 Mini GP Bike-
This at the moment is my main project, among about 4-5 other 2 stroke bikes. Raced in a few races last year. Could never dial in the engine setup perfectly. Tried changing too many things at once and was always rushed by the next race while in school and working. No one to blame but myself on that note :)

Here is the bike shortly after I bought it. Fairings are off, removed the previous owners decals, painted the tail, etc.

The modifications by the previous owner: Jemco pipe, pretty lean jetting, Racetech front fork setup and some crash protection.

My current incarnation is running a KTM 50 single ring Vertex piston, custom machined head, Polini PWK 24mm carb and HPI inner rotor programmable ignition. I was never able to dial in the jetting and ignition settings perfectly. Would love to spend some time on a dyno figuring that issue out but that is a project for later this year.

Here are some pictures of the bike during my first race. It was a last minute effort, didn't have time to sort out the fairings or jetting and didn't have time to order number decals. A real hodgepodge affair that day but it was fun none the less.

Here is another photo of the bike a few rounds later with some actual fairings and hardware store address numbers on it.

Racing this bike on the local kart tracks is a blast. Much cheaper to maintain than a big track bike and most importantly, when you go down the repair costs and risk of injury is exponentially lower.