Carb jetting advi ce 05 fxst
#11
I'm lost... there are 2 adjustment screws on a CV40? The only one I know of is right next to the cyclinder. Ya put the main and pilot jets in. Run this screw out about 3 turns. Run her up to operating temp then dial this screw in till she stumbles then back out till she runs like crap. Split the difference in the amount of turns and that's the sweet spot...
I can't say I recognize that description for the mixture screw... ?
There are two screw adjustments.
1) Is for the idle adjustment, by the throttle cables.
2) The one you referenced above is for the mixture screw for tuning the carb. It comes OEM blocked by a plug, for EPA reasons. Once the plug is removed, you gain access to the screw. It is on the bottom of the carb, by the float bowl.
If it takes over 4 turns for the mixture screw to get to the "sweet spot", then you need a bigger pilot jet...
All that info is contained in the various tutorials on the CV Performance web site I referenced for you above in post #4.
If you don't see the mixture screw, and it still has the plug, and you won't be able to tune the carb...
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eighteight (08-12-2024)
#12
#13
Thanks Hattitude. Yes Sir. That's what I was trying to put into words. I'm gonna have to pop the float bowl and pull the jets to actually know where I'm at first.
Mr. 88, I hear you loud n clear. Will post up some numbers as soon as possible for ya. I have a strong smell of raw fuel sitting at lights. Deceleration popping like crazy.
Mr. 88, I hear you loud n clear. Will post up some numbers as soon as possible for ya. I have a strong smell of raw fuel sitting at lights. Deceleration popping like crazy.
Last edited by SoftTail-HardHead; 08-13-2024 at 11:06 AM.
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hattitude (08-13-2024)
#14
UPDATE:
Well, I be getting 40mpg so , thats good news.
Just waiting for my CV Preformance parts and I'm gonna update/ upgrade this CV40 and toon!
WILL post new info. soon.
I do believe CV Preformance's blog enlightened me, as to the strong gas smell. She's definately not running rich, as suspected. Looks more like my dumbass/ lazieness in winter storeage. I.E. not lettin her run outta fuel before storeage! I do believe I destroyed the float bowl meter thang.
will let ya all know soon. Parts back order so be a few fellas.
Chow, Ciao... lol. Both!
Just waiting for my CV Preformance parts and I'm gonna update/ upgrade this CV40 and toon!
WILL post new info. soon.
I do believe CV Preformance's blog enlightened me, as to the strong gas smell. She's definately not running rich, as suspected. Looks more like my dumbass/ lazieness in winter storeage. I.E. not lettin her run outta fuel before storeage! I do believe I destroyed the float bowl meter thang.
will let ya all know soon. Parts back order so be a few fellas.
Chow, Ciao... lol. Both!
Last edited by SoftTail-HardHead; 08-22-2024 at 12:30 PM.
The following users liked this post:
hattitude (08-22-2024)
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