CV Carb Rebuild & Hot Rod Harley Carburetor Keihin 40mm

CV Carb Rebuild kit
www.amazon.com/Carburetor-Dav...
Brass Fuel Inlet nozzle
www.amazon.com/Rullo-Cycles-B...
Dynojet Recalibration Kit
DS-289306 (1996-1999)
vtwin.parts/part-type/fuel-ai...
Dow Corning Molykote 55 O-ring Grease Lubricant
www.amazon.com/Corning-Molyko...

[@Premier-Media-Group]

The power of KZbin! Here I am - over a year after you uploaded this - taking apart the carb on my 95k mile 1993 FLHS, and your video was the perfect help!

[@Rapsgarage]

Glad it helped! Thank you for watching! Please subscribe if you haven’t. Thx

[@jefferybraswell2295]

Thank you Bro I followed you line by line on my CV for my 04 Heritage 88 I watched ALOT of CV vids but yours is the most thorough and you take your time which allowed me to stop the video and complete my task I had cleaned my carb but I missed a couple things I’m 67 and I need all the help I can get!🤙🏻🙏🏼😂

[@Rapsgarage]

Your very welcome! Thank you for watching. If you’re not subscribe, please do.

[@RedRiderCanadaBC]

Super handy info! I really like that relocation of the choke, think I'll do that on my dyna. I've also seen that they make plastic sliders for those carbs too and them being so light helps the carb to be a little more responsive.

[@Rapsgarage]

Thank you. I’ve seen a few of your videos too. Good stuff. Of course, please I can subscribe. Thank you.

[@RedRiderCanadaBC]

@@Rapsgarage thanks! I subscribed to you also.

[@cowboy7x]

Great video. This will help me rebuild my 96 FLHR carb.

[@Rapsgarage]

Glad it helped. Thank you for watching and if you haven’t please subscribe.

[@kwokka666]

Keeping the oem internal parts, (freshen them up reuse) was best found for reliable performance from my cv carb on my 1340 Chinese crap either didn't fit or had no size shown on the jet's etc, with good filter K&N smooth in traffic low speed then smooth all the way 80mph took me 4 times to rebuild it get it bang on with help from youtube people like you doing these very helpful vids many cheers 👍

[@Rapsgarage]

Good to hear. Thank you for watching.

[@darcyoneill9377]

Seems a clear explanation of this carb ( and generally). I'm late in the game learning all this detail and this was really helpful. Have this carb on on a 2006 Road King 88" motor rebuilt with S&S cam & pinion gears, cams, to 95", that I just removed a gear driven MagnaCharger from (all sitting in a rigid frame springer). Long story, but mostly wanted the 'skinny' look back. I bought it, rode it as a 2nd 'toy' to a H-D Slim/now Deluxe - it was fun. But by now for me, crazy fun. Thanks again.

[@Rapsgarage]

Great to hear! Thank you for watching and commenting!

[@ThomasELeClair]

,,,,,,,,,,,,,,,,Well worth the new subscription......Please do a segment about the operation of the V.O.E.S. switch ; its function , and how to ground the proper wire ; when not using it........

[@Rapsgarage]

I’ll have to look into that. Thank you for watching.

[@gaknskk]

Cv preformance sells great preformance parts and kits to wake these carbs up

[@kurtfoulke5130]

Thanks Rap, looks like I have that Dnyo-jet needle kit. It slid apart during disassembly and I wasn't shur where the washers stacked up. I'm used to a Linkert or Bendix but I'm starting to see the advantages of the CV.

[@Rapsgarage]

I'm glad I could help!! Thank you for watching.

[@user-us6um3kf9z]

Excellent video. Thanks

[@Rapsgarage]

Thanks and thanks for watching

[@doug3805]

Thanks for the video, used it to disassemble my and reassemble my CV carb.

[@Rapsgarage]

Thank you for watching and please subscribe, if you haven't.

[@doug3805]

@@Rapsgarage I did.

[@williebutler9576]

Nice work;

[@Rapsgarage]

Thank you and thank you for watching

[@maheralazzawi7814]

Good job

[@Rapsgarage]

Thank you and thank you for watching

[@frankmccracken743]

This is a very good report, thanks Rap.

[@Rapsgarage]

Thank you for watching

[@georgieporgie490]

Good stuff.

[@Rapsgarage]

Thank you! Please subscribe.

[@georgieporgie490]

@@Rapsgarage I thought I did. I'll look.

[@whiterabbit201]

Looks like you have the Dyno Jet kit in your carb. The stock carb doesn't have an adjustable needle, and the lil washers go on the bottom of the E-clip to slightly raise the needle out of the main jet, not on top of the E-clip. The CV carb is a damn good carb.

[@Rapsgarage]

You are correct that I have that kit. However, the washers go on top of the E-clip and hold it down so that it doesn’t bounce around when the bike is running. The E-clip sets the height not the washers. Thank you for watching and if you haven’t, please subscribe.

[@rarebreed9208]

I like the way float bowl screws have always been made of some type of lead so the screw head distorts when you put a Phillips screwdriver even close to them.

[@Rapsgarage]

I hear that!

[@gaknskk]

You can get long brass screws that you just use your fingers to tighten incase you wanna change the jet on the road from Lowbrow customs

[@Rapsgarage]

@@gaknskk i’ll have to check that out. I’ve never had to change my jets once I get it jetted properly.

[@gaknskk]

@Rap's Garage Shop it's usually for when you are in the mountains at different elevations. It's just handy to have . Plus they have finger adjustments screw for the idle and air fuel mixture. I love mine

[@Rapsgarage]

@@gaknskk I understand what you’re saying but I live at sea level and have ridden my bike into the mountains and never had a problem. I’ve seen the idle mixture screw with the thumb wheel and I think I have a new one I’ve never installed. Thanks for your input.

[@MoeLarrycurly1]

I do try and gather all the information I can from the different sources and of course one your source is right up there. Recently I put a CV carburetor on a 96 cubic inch Softail my neighbor had that I had helped him build or rebuild from a wrecked bike or it was burnt I mean. It got into a rough patch he lost his son and he really needed something to take his mind off and it took us good 3 months. It ran fine for a couple years but then had a problem with a couple of codes and it wouldn't take any throttle the I know maybe I've spoke to you about this before I know I've spoke to other people but being of well older person sometimes I forget things. Anyway I put a carburetor on it the CV carburetor I had a couple of carburetor bodies laying around and rebuild it he bought the parts but when it was hot it would dribble gas out of the overflow when it was sitting on the side stand after you turned it off maybe it was even dribbling before. So I tried putting the last or adjusting the float to have less gas in the float in the carburetor bowl. In the end I took another upper section which I thought the or the float shuts off with the rubber little valve maybe that brass fitting was not the best shall we say. I did that just the other day hopefully it won't leak anymore cuz I didn't want to keep taking or keep reducing the amount of gas in the float bowl I'm sure it would run leaner if I understand it by doing that. Otherwise the bike runs really well you said it runs better than when it had a fuel injection system on it. And I certainly do like the CV carburetors well maybe it's cuz I understand them the best. I've worked on SNS and su and Bendix. I did like the Bendix back from the shovelhead but that's before there was anything else around.

[@Rapsgarage]

I'd also check the gas tank vent to make sure it working. You could be pressuring the fuel system causing the needle to be forced off the seat.

[@MoeLarrycurly1]

@@Rapsgarage yeah that's one thing I thought also considering this tank had been in a fire of course it was cleaned up and repainted but you can push air into the tank and the vent works also the gas cap. I have yet to get a really really warm but we'll see how this upper section mated to the other bowl works.

[@jamesschueler2667]

I believe the shims go on the other side of the E- clip to richen the fuel mixture.

[@Rapsgarage]

The e-clip sets the height of the needle in the different grooves in the needle. You have to put the shims on top (as I did in this video) so the needle doesn’t move up and down from vibration. This procedure is not for a stock OEM needle. This is for the aftermarket needle. The way I did this in the video is correct. Thank you for watching and let me know if I can help you further.

[@kennethwise7108]

I love my CV44 carburetor, works PERFECT on my 113" Ultima El Bruto. Fits perfect on a stock airbox too.

[@Rapsgarage]

I love the CV carb also! I wonder with an engine that big if a S&S Super E would work even better.

[@kennethwise7108]

@Rap's Garage Shop nah, given the choice I'd choose a mikuni HSR and CV HD carburetor over any S&S but that's just me. Ive learned the secrets of the CV and how to make them perform well and get exceptional fuel economy out of it. My 89" stroker gets 50 mpg and hauls ass doing it

[@Rapsgarage]

@@kennethwise7108 i understand what you’re saying.

[@theodavies8754]

Excellent content. I've got a TC88 FXDL with the HD CV. It's already 25 years old, where did the time go?

[@Rapsgarage]

I agree. I don’t think my 1997 Softail is old but in 3 years it will be 30 years old. lol Thanks for watching.

[@tonyrap3846]

Your awesome , Thanks for doing this

[@Rapsgarage]

You’re welcome

[@CarlosGarcia-ls4hn]

Sir, can you use the Dow Corning O ring grease in the carb gaskets, such as the carb to back plate gasket and the carb to air cleaner gasket, which are non-rubber, or is it used strictly for the rubber items like the O rings? Thx

[@Rapsgarage]

Thank you for pointing this out. I will add it to the description. Thanks for watching. www.amazon.com/Corning-Molykote-ring-Grease-Lubricant/dp/B01HEC1ZKA/ref=sr_1_7?hvadid=583771676772&hvdev=c&hvlocphy=9007226&hvnetw=g&hvqmt=e&hvrand=4413372727603150520&hvtargid=kwd-317919263224&hydadcr=6399_13218598&keywords=molykote+55+o-ring+grease&qid=1682196749&sr=8-7

[@deadheadlights]

👍👍👍 Thanks mate!

[@Rapsgarage]

You are welcome. Thank you for watching!

[@danielkalmus4229]

If I buy a rebuild kit will the float come pre adjusted to OEM specs?

[@Rapsgarage]

It does not come pre-adjusted. You have to check it. I check everything! I never assume that when I buy something, even from a reputable company, that it’s correct. I buy pistons from Wiseco I check them. I buy something from S&S. I check it. It may end up being right, but you still have to check it. Thank you for watching and if you haven’t, please like and subscribe.

[@jeanson105olivier3]

Im putting one on my 78 shovelhead. You had a 170 main and what was the other jet size ?

[@Rapsgarage]

#45 Pilot jet Thanks for watching.

[@danruth1807]

Do you have any suggestions about how to remove a choke cable if the plunger is stuck in the carb body?

[@Rapsgarage]

I’d try a small drill bit and a wood screw. Drill a small hole, insert the screw then use something to pry up on the screw to pull it out. You can also use a good penetrating oil and let it soak overnight.

[@MoeLarrycurly1]

Good or bad I like an emulsion tube that has multiple holes along the side I noticed some aftermarket manufactured ones have no holes at all I just feel it runs better with the multiple holes maybe it's just me I don't know. But for my 80 cubic inch Evo yeah 170 or 175 main jet in an n72 needle. I tried the 1988 Sportster needle in ran it for many years but I was hoping I'd get a little better mileage with the other needle

[@michaelslawinski6449]

Can i get rid of the voes Switch cable since it is sealed with a tube shrink? It was there already on this second Hand dyna.

[@Rapsgarage]

You would have to decide if that’s what you want to do. I would use it if you can. See my video. Evo ignition pickup coil and VOES explanation troubleshooting Harley Motor kzbin.info/www/bejne/rISveauoj9RsbMk

[@michaelslawinski6449]

@@Rapsgarage the problem is there is nothing there apart from the vacuum line. Removed the hose already and sealed the inlet to the carb.

[@michaelslawinski6449]

Ok, so this hose coming out of the carb was initially linked to the vacuum fuel valve. Have already checked with the manual. Nothing about voes in the book for dyna 2000. Got rid of it since switched to ordinary petcock. No need for the line. But found your vid very interesting.

[@Rapsgarage]

I’ll have to look into if you need to short the wires or leave them open. You were right to plug the vacuum port.

[@Rapsgarage]

Sounds like you have it covered correctly. Thank you for watching and commenting. Please reach out anytime.

[@Adam2Waite]

What size you drill the hole? What is #29

[@Rapsgarage]

A #29 drill bit is .136 inches or 3.4544 millimeters. It falls between 1/8” and 9/64”

[@jeffsoost2205]

Great video, how much and what mods to my cv can improve my performance on an 88cu in motor with mild cams

[@Rapsgarage]

These exact same mods should help. If you feel this isn’t enough it might be time to step up to an S&S Super E.

[@kwokka666]

Did you ultra sonic dip carb to get it that clean, butterfly etc just curious

[@Rapsgarage]

I washed it in the solvent tank. It's the new school solvent... hot water with some kind of soap in it. Then I spray 2+2 carb cleaner through it, then blow high pressure through it.

[@ClovisPoint]

you tube deleting my comments

[@ClovisPoint]

again

[@Rapsgarage]

@@ClovisPoint I have no idea why they would do that.

[@o.u.t.olduglytroll3712]

loved your "don't make that mistake" moment (16:16). my kid did a cv rebuild vid too on her channel ( kzbin.info/www/bejne/qX_San5rbJqNoLssi=c_OIF6p7hcHxHHtP ) but it wasn't as thorough as yours. i'm bookmarking this and getting her to watch it when she's back in town. good info and vid.

[@Rapsgarage]

I’ll check it out. Thank you for watching.