how to tell if D engine 74 125

[gooddirt]

Well some folks want to chat and feel connected. There are porting and intake and exhaust differences in the castings and liner. Just put them side by side as I have; do they make a differnce ? E. Phillips has foam casting of all the different barrels ports . Pics some where on his photobucket. Looking right now as I hold the D barrel I can see the exhaust port in the casting is about 20% smaller opening than the B. LG

[firstturn]

Now we are talking air flow 101.  There are a lot of tricks to building a engine and not all of them are bigger ports and carburetors.  Thanks Dale for the picture.  We raised over $30,000 for Childrens Cancer Fund today in Luckenbach Texas.  Long day and I am going to hit the sack.

Ron Carbaugh

[Doug Bridges]

That is a good kind of tired. You should sleep good.

Doug Bridges
73 Jackpiner
74 Jackpiner/FrankenPenton
project
82 XR200R

[chuck]

Dale,

Don't mean to change the topic, but that's an interesting looking airbox. If you can find the flier or know who the manufacturer is (was), I would appreciate it if you could send it to me.


Thanks,

Chuck


72 125 Six Days
72 100 Berkshire
74 250 Hare Scrambles
72 Wassel