needle

Hello All, Further to my other post on my 2004 running / fueling issues. I noticed the other day, when the engine was running, after I did a Shotgun clean of the 4 carbs, that fuel was seeping past the needle / seats inside the carb inlet throats, on all 4 carbs. I don't recall noticing this...

Greetings all, I was reading the Factory pro site and viewing the pictures of worn needle jets and their pics show their jet as oblong and stick as round. I assume this is a mistake. But a question remains in my mind about whether or not I need new jets. I looked at a dozen needle jets in my...

I tried but could not find reference to the fuel/air needle adjustment screw thread pitch. I have come up with a size to (to the best of my ability) but I was hoping someone else here has found out by experience for sure what the thread pitch is. My plan is to chase the threads in the carbs I...

Can anyone tell me the stock carb needle position ?

Hi all, Bill Denton here, retread newbie. Had a '97 about 10 years ago, sold it but now have a '99 that I'm working on. I have a question about proper placement of o-ring #33 on the needle jet #34. In the sticky called Carb rebuild parts 1-6, the o-ring is being placed onto the needle jet on the...

I have some carb needle shim washers that I use every now and then on other projects. Question- can I slide 1 thin shim under the needle and get away with it and not cause any other problems ? I am running stock jets. Will it help on top-end pull, or is it just a bunch of trouble ?

Alright, I'm baffled. This is on a Venture with a Vmax Engine in it (at least from the cylinder block up it is). It's running pig rich at idle and low rpms. Will run a couple days and then cabon fouls the plugs. I tried to adjust the idle fuel screws and discovered that they had no effect if...

We have a large supply of float needle valves for sale......$9 each shipped to CONUS.

I had a friend misplace the threaded plugs and little springs that hold the needles in the slide. Not sure what happened. Think carbs were apart for a while. I sent him the ones out of my spare diaphragm assemblies. So now I need 4 springs and 4 screw plugs. I can get them I think in a needle...

Does anyone know the stock Canadian needle clip setting? I'm at sea level. I get a stumble cruising at 45000-5000 rpm. When I get on the throttle it goes away untill I start cruising again. I think it is running rich. I have stock modified exhaust.

Anyone know where to get a brass pressed plug that goes into the carb housing where the needle valve sits? The previous owner knocked it out while trying to rebuild the carbs and I can't see them on the parts listing. Attached a pic to see the gaping hole left behind after his handywork. :bang...

I was moving the circlips up one notch. On one needle, it was missing to washer on side close to blunt side. What issues, if any, running it that way.

So things are running. Synch is improving, but I've got what looks like raw fuel pumping into #4 (right front). It's like a constant dribble around the needle while the bike is running. It's not backing up out of any of the air holes. I'll make a video in a bit but I'm only in town until...

This is my first time posting so forgive me if its in the wrong place. I've been changing jets and needles and I think I must be missing a part . I can see in diagrams of a needle holder which I don't seem have. To be clearer I have a 85 vmax that I bought used and bought Morley kit. I have the...

Hi Guys, I've removed my carbs and rebuilding and cleaning. In my rebuild kit, the float needle comes with a new brass housing as well but I don't see how to get the old one out??? It looks like it pushes down in from the top but it is capped off. Should I remove and replace or just use the...

On the plastic piece that fits on the needle, there is a small little tit that fits into the slide. When you do anything with the needles, you have to rotate the needle, until that nipple falls into place on the slide. Everyso often, i will tend to break the nipple off of the plastic piece...

First, my pilot fuel jets are marked 40 whereas I think stock size is like 37.5? Any reason why the PO would have put a larger one in and should I bother going back to stock or can I just screw in my A/F screws a bit to compensate? Secondly, how much of a difference does half a clip on a...

I know that there are several people on this forum that have shimmed the needles in their carbs. Does anyone know how much of a horsepower increase that they had? For instance putting the bike on the dyno before and after it was done? Or has it just helped the drivability? I have an 07 (with...

Hi, Would different needles have different optimum main jet size or is optimum main jet the same for all setups? Thanks!

Hi, I'm trying to get morley jet kit working with stock needle at sealevel. The stock needle doesn't seem to have adjustment possibilities. The bike pulls great with WOT at 5-7k, but when I'm not really full trottle, 2/3 of WOT maybe and going through 5-7K, it's very rough and there's a...