The ones from dax (65-66) have smaller openings than the new actual delorto jets from treatland.(63-64) the ones I got from dax had no marking on the jet itself, but they came in tape with sharpie on them indicating the supposed number. I had a supposed 65 jet in my carb and it was running rich no matter what notch the needle was in, so I ordered a 63 and 64 jet from treat land, both the treat jet holes are bigger than the jet that was supposedly a 65. Don't know where you got the lower jet rich thing. I have ADD or something so my subject matter can be all over the place. Lol I know higher= richer lower= leaner. When I got the ones from dax awhile ago I carved the number that was on the tape into the corresponding jet. I know I didn't mess that up. It's just weird. I have two 65 from dax and there about 1-2 sizes apart I'll post pics tomorrow.
I dont personally by different size jets to tune my carbs, I solder and drill mine to the size I need, very simple and much cheaper in the long run than buying new jets and then having several that you cant even use.
A small propane torch, some pliers and an inexpensive set of wire gauge drill bits is all that is needed to do the job.
As soon as I get to my computer and off of this " smart phone " Ill post a link to a set of very inexpensive bits to do the job, it will save you money and allow you to fine tune the carb right, just a samll piec of solid core solder and heated just enough to melt the solder into the hole of the jet and then drill the jet back out to the size you want to try, wire gauge bits size opposite from jet sizes, bigger number on bit smaller it is, all my engines run great will jets drilled with either a #72 or #73 wire gauge bit.
Link coming when I get on my computer.
Below are the links to where I get my bit sets and all the dremel accessories I use for doing port work to the intake, exhaust and transfer ports.
http://www.widgetsupply.com/product/WB05.html
http://www.widgetsupply.com/product/SGS3-841DH.html
also if you dont have a propane torch just go to a convenient store and find a TORCH type cig lighter, NOT a flame type but the TORCH type and it should get the jet hot enough to melt the solder, as far as the solder is concerned also you want to get the very small diameter solid wire solder, NOT rosin core or Acid core, clip off a piece abot 1/8" of an inch long make sure the jet is sprayed off good with some carb cleaner spray or brake cleaner to remove any oil, hold jet in pliers so that the screwdriver slot is facing upwards, have the torch ready but do not heat jet yet, place small piece of solder over hole in the jet and heat with torch from bottom side of jet, heat just long enough until you see solder melt and fill the hole then immediately remove flame off of jet, either let it sit and cool or after 15-20 seconds dunk in water.
To drill jet I always drill it from the bottom, hold the jet so screwdriver slot is facing down and then drill the jet slowly and keep the bit running straight inside the jet, try to go slow and not woller the drill bit around as you drill it or the hole will be bigger than the drill size.
Hope this helps, doing it this way will allow you to get the carb tuned perfectly and prevent you from having a pile of different jets that you cant even use.
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