I don't remember piss revving my old dirt bikes to check tune

[Bigmac]

View attachment 191099 View attachment 191100 View attachment 191101 View attachment 191102 View attachment 191103 You guys are taking me down memory lane here. MX was my life for a lot of years. I raced a few years as a teen, loved freeriding my whole life and dabbled in FMX the last few years I rode. I still have my YZ250, but I usually only go putt around with my boy now. My favourite bike was a 2001CR250 chassis I put an ‘85 CR500 engine in

The 85 motor is a handful! The short rod motor hit harder!

 

[flying pig]

The 85 motor is a handful! The short rod motor hit harder!

Last of the fast ones. I’d give my eye teeth to build another one. If I ever find another engine I’ll put it in a late model YZF chassis

 

[Bigmac]

Last of the fast ones. I’d give my eye teeth to build another one. If I ever find another engine I’ll put it in a late model YZF chassis

That would be cool! I have a few 500 engines, and have a mint set of 85 cases
Stock bore 85 cylinder and head

My street legal 500 is a ported 85

 

[flying pig]

That would be cool! I have a few 500 engines, and have a mint set of 85 casesView attachment 191104
Stock bore 85 cylinder and head

My street legal 500 is a ported 85

I’m drooling lol

 

[shadco]

.One of few pics I have.

 

[Terry Syd]

Interesting how many old time two-stroke bike racers have ended up running modified two-stroke chainsaws. I don't know, must be something that got in their blood and couldn't get rid of it.

 

[Bigmac]

Interesting how many old time two-stroke bike racers have ended up running modified two-stroke chainsaws. I don't know, must be something that got in their blood and couldn't get rid of it.

Honestly, that’s a fact and good observation! It’s true for me, love two strokes!