[pete]

Originally Posted by Megadan

In other news, since it really didn't cost me anything I went ahead and ordered a PWK 30mm flat slide carburetor with power jet. I also ordered a whole assortment of jets to go with it. Since I get "points" at work for things like perfect attendance and doing a "good job" that I can turn into things like Amazon gift cards, I went ahead and blew some of those points just for some fun experimentation.

From what I have seen, since the PWK doesn't have a flange mount, this style of intake should work with it. https://www.aliexpress.com/item/MIKU...308.0.0.BJUESk

The only catch is that I have to figure out how to do the intake side of things. Since the PWK carb has a 50mm inlet flange diameter, the stock intake tube is definitely not going to work with it. For now I may look into an angled Uni pod filter, but I would like to modify and utilize the stock airbox in some way.

The real question is... Should this be a part of my "modified" dyno run? Or should I stick to the PZ30/VM26 style carb. I honestly doubt there would be a huge difference in power between them with the stock cylinder head ports still in play.

I have them on 2 of my bikes....
77 Montesa Cota 348 has a 26mm OKO
TTR250 has a 32mm Koso "chinese copy of the OKO"

good carbs... the 32 on the TTR was a bit finiky to get the jetting right
I found the easyest way was to plug the power jet tube while getting the
jets right.. then reconnect it then you were pretty close with the jets..
I prob had it right 10 times... but yer always think one bigger or smaller
move the needle... will be better....maybe I just don't know when to stop fiddling...

The one on the Montesa came pre-jetted from Sammy Millers classic trials in the UK
so that one was easy... plug & play...



..