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Here's a head scratcher. I have leaned out my float adjustement so that it wont leak fuel on the floor and now the motor acts like it is starved for full. Im using a Harley floaty needle. Do I just adjust it back out and keep shutting the fuel off when I shut the motor off? I was hoping I wouldnt have to do that. I am still messing with a CV on a shovelhead.
This is exactly how I set it. I cut out a cardboard guage. I set it a 32nd of an inch lean so that the leaking would stop but all that did was starve the engine of full. Do you know what the difference is between a three sided and four sided needle. The instruction sheet that came with my needle valve said to never use a three sided in a cv carb. The three sided that was in there before never leaked on the floor.
Go here for a wealth of CV Carb info. It is for Sportster; however, the carb is the same along with the adjustments there is a good read through and explanation on setup..
Not sure what bike this is about, but any bike with a petcock/fuel valve has it shut off when parked. I would not lean out my motor so I didn't have to turn the fuel off, they may turn into an expensive experience.
Just make is muscle memory to shut the fuel off, I do it at every stop, just something I do after over 30 years. Leaning out a motor is not a good idea, good luck.
Your early "round float" CV came with a 3-side valve. Problem is - the aftermarket 3-side ones just don't seem to work in any carb. They are bad to **** sideways in the bore and flood. And most originals did not have the spring loaded tip, just a solid tip on the float end. Don't try using an aftermarket 3-sided valve just because it came with one originally.
The round floats are so much lighter than the '92-up square floats, you can almost set them with the carb totally upside down and still be close. And it's nice the early ones had a floating pin. The later ones you have to drive the swivel pin out to remove the valve, so lucky you snagged an early carb when you did the conversion.
yes I did and its white instead of brown. I used a harley 4 sided float valve and it still leaks a little. I think im going to take a q tip and some Mothers and polish the seat. Its a 30 year old carb and there is probable some varnish in it.
Round float CVs are measured upside down, not at an angle like the square float CVs
Float Level Adjustment 1988-1991 models An incorrect float level can cause flooding as well as poor fuel economy and acceleration. The carburetor must be removed and partially disassembled for this adjustment. 1. Remove the carburetor as described in this section. 2. Remove the float bowl as described in Disassembly in this section. 3. One-piece floats are used in the carburetor. Before checking the float level, check that both float halves (Figure 69) are aligned at an equal height with each other. If the float halves are not in alignment, remove the float and check it for damage. 4. Turn the carburetor to position the float bowl as shown in Figure 70. Measure the float height from the face of the bowl mounting flange surface to the bottom float surface. Do not apply pressure to the float when measuring. The correct float height is 0.725-0.730 in. (18.4-18.5 mm).
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