Over throttling

[m in sc]

maybe, or just track down a stock set of needles, they are out there. Get a good baseline. either way will be a good way to go.

[Vintagewannabe]

the 5dp7 is only used in the dave f mod or stock r5 carbs and in conjunction with a 0-0 or 0-4 jet tube (or p2 depending on state of tune, etc), and then, it has a 2.0 air jet vs the .8 mm one on the stock rd carbs. 

yes, it makes that much of a difference in conjunction w the jet tube used.

heres the 5dp7 needle and an r5 style jet tube vs a stock rd jet tube and a 514 needle. these are what all the main jet fuel runs thru.

So it seems like its more worth it to just get the dave F mod kit from economy cycle and use what I need for now, then do the rest later when I get some chambers.

After a quick ride it seems to have actually smoothed out a lot.

[Vintagewannabe]

maybe, or just track down a stock set of needles, they are out there. Get a good baseline. either way will be a good way to go.

Well, my thought was that I am going to want the rest of the parts eventually for when I put chambers on it in a month or so. And since the kit comes with good needles and tubes, as well as all the jet sizes I don't already have, then wouldn't that make more sense?

[m in sc]

for sure.

that being the case.. if oyu wish to go an even different way... check out my cheap af pwk thread.   

https://www.2strokeworld.net/forum/index.php?topic=6585.0

[teazer]

The best thing to do when rebuilding carbs is to strip and clean the carb body and test "flow" through each drilling/circuit jet. Do one circuit in one carb and compare that circuit with the other carb You might be surprised how different they can be from one side to the other.

Then fit all new brass.  Old jets may be fine but they may also have been "cleaned" with fence wire or a drill bit or anything else that might have been available at the time.

[m in sc]

agreed. i always look at old (main) jets thru a powerful jewelers loupe to make sure they aren't scratched up in the hole or have been redrilled. but new is always a safe choice.

[Vintagewannabe]

So the jets I have used are new. I eneded up going with a close to stock 5L1 needles and keeping the emulsion tubes after talking to economy cycle. I ordered a 180 main as well to try. Rarely do I re use an old jet, and its only when I am the one who used it. The carbs are super clean and running a bit better now.