What model I don't know though...
Glen
Doug it has been a common problem since the crap fuel came out, and isn't getting better.
It doesn't take much build-up on the needles and ID of the jet to lean it out.
The scotch-brite works well on the needles, they get crudded-up bad on the fat (low speed) end.
I have an assortment of different diameter rods that I use to check for closed-up or worn jets.
Occasionally I'll get one that is so bad that I can't get my sized rod down, and I have to ream the crap out.
Due to the close relationship of the needle/jet, not only does the fuel affect the float & needle seating, it affects the overall running as well in terms of mixture change.
Glen
Don't consider your post a hijack. My thread was too long as it was.
I had not given any thought to making "clean out" or test rods for the jets. I have been spraying carb cleaner on old-fashioned pipe cleaners (the type with nylon bristles) to swab out the jets. I like the idea of clean out rods for the jets and ScotchBrite for the needles. I'll have to look through my collection of drill rod to see what diameters I have available... or maybe turn a short rod out of something softer like 6061 aluminum so I cannot scratch the jets.
Thanks for the idea Glen.
Doug L.
Not to hijack Dougs thread, here's another one.
Just finishing up a multi-year major TR-3 street car build, fresh everything including the fuel system.
About 4 months ago I put "high-test" ethanol-based fuel in it, 3 or 4 gallons so I could run it, tune, retorque, etc before I road tested it.
All was fine, it sat for the last month while I finished up detail work on the body and trimming.
This past Friday was going to be the roll-out and 1st test hop day, finally.
Well... it wanted a lot of choke to start and ran lean during warm-up & normal temp, and very poor throttle response, typical of a lean run.
Sure enough, the needles had a build-up already, and I couldn't get a .100 test rod in either jet.
Cleaned the jets & needles, back to running great again.
Glen
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