Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[hdrider53]

I have 01 RG I just put about $2500 in engine work on. Big bore 95 kit, Flat top pistons, SE MCR heads, Andrews TW54 cams, VH 2/1 Pro pipe, SE air filter etc. It’s not broken in yet but it just doesn’t feel all the great in the seat of the pants department. I’m thinking all that work and I still have the stock CV40 carb, maybe that’s the problem. I’m thinking this could be 100 square bike if I get it running right.

The main deal on the carb is I want to keep my cruise control no matter what. Plus I live in Colorado lots of high elevation riding.

1. Do I rejet and maybe put in a Dyno Jet stage 7 thunderslide kit and a bigger intake?

2. Do I buy the SE CV44 and SE intake? I hear the street legal one is supposed to work with cruise control. But then would I still need to put in a Thunderslide kit to get the performance where I want it?

3. Is there any other carb out there that would work? I had a Mikuni 42 Flatslide on another bike and liked it but I don’t believe they are cruise control compatible.

4. Would a different ignition and coil make a big enough difference to justify the money after I do the carb?

Thanks for any and all your input, just need to make a decision

[walstibsf]

HD53:  no matter what you do, get some more fuel delivery happening than the stock carb w/ stock jetting is going to deliver.  The SE CV44 carb may be a good choice once you get the jetting right, if cruise control is a must.  A CV carb will accommodate somewhat for altitude changes, whereas the MIC 42 won't nor the S&S.  Bet once some fuel happens, the seat of your pants will feel the kick.

If it were me, I'd just take it one step at a time.  At this point, even getting the jetting right on your stock carb is going to produce a significant effect.  The Dynojet jetting kit with the new needle, main jets w/ needle jet and CV diaphragm spring is a good bet.  You'll still need a larger slow jet(maybe 45-46).  If I got the CV44, I'd wait and see how it works after getting the jetting right.  Then decide if I need the DJ thunderslide.  The thunderslide will never be a replacement for correct jetting.  It will mostly allow for more rapid acceleration.  It has a lighter slide with a more aggressive cut-away.  Alot of folks don't like em because it swipes some of the bikes smoothness as well as other issues. 

I suppose, I might be looking at the CV44, depending how many more duckets I had left.  Might even find a used one or NOS online.


My 02....


  

[dartman]

HDR
I had a very similar build on my 02 dont sell the CV carb short its a good unit , I got decent performance with a 48 pilot jet 105 main and the stock needle shimmed 40 thousandths with two #4 brass washers, air fuel adjusted accordingly. every bike is a little different but for just a couple of dollars this set up should increase driveability considerably.

[walstibsf]

Hey, Dartman:  out of curiosity, what's your altitude there?

Thanks and laters....

[dartman]

Hey, Dartman:  out of curiosity, what's your altitude there?

Thanks and laters....

It fluctuates from 550 to 700 pretty flat

[Twolanerider]

A carb is a simple enough thing to change you might consider just having two to compensate for elevation.  Granted, years ago when I did that carbs were cheap.  Not just cheaper but cheap.  But still an option.  Used to have a carb set up for going over the mountains when I headed west and one for just about everywhere else.  Changing carbs was a lot easier than tweaking an installed carb on the side of the road before making a climb.

[dartman]

A carb is a simple enough thing to change you might consider just having two to compensate for elevation.  Granted, years ago when I did that carbs were cheap.  Not just cheaper but cheap.  But still an option.  Used to have a carb set up for going over the mountains when I headed west and one for just about everywhere else.  Changing carbs was a lot easier than tweaking an installed carb on the side of the road before making a climb.

Two Lane, back before the CVs came out  I always had an extra mountain carb when traveling with my shovelhead, The CVs seemed to adjust pretty well to altitude and barometric changes I could run fairly well up to 4,000 ft altitude without blowing a lot of soot out the back, The Klein Carbs always got a bad rap but right out of the box they ran good and with a little tweaking they ran great. I missed the Colorado location on my first post tuning for 9,000 ft or above certainly creates a tuning problem I never rode at that elevation so what worked for me would be way rich even a stock 45 Pilot might be overkill.

[Twolanerider]

Two Lane, back before the CV came out  I always had an extra mountain carb when traveling with my shovelhead, The CVs seemed to adjust pretty well to altitude and barometric changes I could run fairly well up to 3,000 ft altitude without blowing a lot of soot out the back, The Klein Carbs always got a bad rap but right out of the box they ran good and with a little tweaking they ran great.

I picked up that habit in the pre-CV days also.  Was always told the new carbs would handle the changes better.  But old habits died hard.  Especially when for $20 or so a a used carb could be bought and for just a bit more it could be tweaked to do what you wanted.  Hell, I guess I was old and stubborn even when I was young and beautiful....

[hdrider53]

I just ordered a jet kit upgrade from Head Quarters should do the trick and cheap.

[Okwisher]

I've been running Mikunis for 10 years on my 01 FLHTC. I summer in Montana at 7500 ft and a day ride is over Beartooth to Red Lodge and back over Chief Joseph to the cabin. I live at sea level. The Mikuni is far superior to the cv carb. I even put one on my Wife's 01 Heritage.