Replacing the cam chain shoes in my brother's carbed '04 Electraglide and upgrading to S&S 510 cams, S&S lifters, and S&S pushhrods. Chain drive is staying, runout is beyond the recommended .003.

He's going to be running the stock CV carb, what type of upgrades should I recommend to him for the carb?

 

Replace the carb needle - get a stock HD if you can find one. Info here - https://cv-performance.com/cvp-n65-needle

Remove the carb's idle mixture screw plug and adjust it running hot - start at 2 1/2 turns out.

The stock oil pump has next to zero pressure when idling hot - replace it with something better. Fwiw I like the Fueling kit.

Most importantly replace the inner cam bearings - S&S has good ones.

If it was my bike I'd go with HD's kit - https://www.harley-davidson.com/stor...l-pump-upgrade

Good luck

 

So does Dynojet not make a kit for that?

 

Get a set of these:
http://twincamtensioner.com/

 

Thunderslide and jet kit

get the vacuum piston too

 

And instead of getting the high volume oil pump, get one of these:
https://www.zippersperformance.com/baisley-springs.html

 

Bearings come with the cam kit

Sent him a link to the tensioners

No way he's going to go for a 500.00 oil pump kit since he's on a budget, so I'll send him a link to the springs

I'll send him a link to the Thunderslide kit and go with the needle in that kit.

Thanks guys!

 

I wouldn't spend any money on a CV carb, honestly. Put on a Mikuni HSR42 and it will really make a noticeable difference. Well worth the money.

 

All he needs -
https://www.ebay.com/itm/HARLEY-GENU...53.m1438.l2649

 

You didn't mention if he is going to go with a different ignition module to adjust timing curves. The OEM HD timing will support those cams, but for optimum performance, he may want to eventually go with a Dynatec TC88-3 ignition module.

As far as carbs go... here's my opinion...

The Mikuni carb was the go to carb, to replace the old Keihin butterfly carbs in the older HD motorcycles. ..

In 1989ish, HD introduced the Keihin CV40 carb with the accelerator pump. The first year CV40 Carbs didn't have it, but I believe they quickly added the accelerator pump on the CV40 the following year .... this CV40 carb has been under appreciated because of the reputation of the older butterfly Keihin carbs.

Don't get me wrong, the Mikuni is a better carb, and infinitely tunable..... But it's more $$$$$$.

IMHO..... If he invested the same time, and less money, on rebuilding and/or tuning the CV40 carb... he will have a good, dependable carb that will handle the mods he's considering.

The CV40 carbs are easy to rebuild (if needed) easy to tune, and CV Performance can supply all the parts. If he has the OEM 45/190 jets, he may be OK with a different needle, or a size up on one or both of the jets. The best way to know for sure is to go through the tuning procedure and follow the recommendations for when to increase the jet size.

Have him do some reading, and watch the videos on the CV Performance website. There's some really good information about the CV40 carbs on their website...


https://cv-performance.com/instructions-guides