I have a ’00 Electra Glide Classic with 852XX miles, I’m the second owner. The previous owner put on a Stage 1 Thunderslider kit with SE exhaust, no other mods. I very recently had the dubious honor of replacing the cams thanks to the cam chain tensioner. Went with the S&S 570G and also put on some V&H Longshots. Bike seems to be spitting, sputtering, coughing, burping, farting etcetera, not extremely just noticeable. Gas mileage also took a dump. So, I’m thinking the issue may be in the area of fuel mixture and or jetting. With that said, two questions please;

Is anyone familiar with the Thunderslider kits?

With my mods, should I stay with Thunderslider or look elsewhere? They have a Stage 7 kit for more performance etc. By the way, when I took ownership, the previous owner didn’t hand over any remaining / unused jets.

Thanks so much for your time;

Jeff

 

I dont have experience with that kit but most jet kits are basicly the same.
If you have rejetted carbs before you could buy the jets you need,buy a different brand jet kit or take the bike to a good tuner.

 

I did the jet kit on my 03, with SE breather. You don't say if you have the breather or not. The way I understand the Thunderslider just makes the throttle more responsive. I didn't use the thunderslider. Check the air/fuel mixture screw. The instructions say screw in all the way then back out 3.5 turns. But I have read that if you go that far out the fuel economy worstens, which is what happened tome. I am getting about 30 mpg.Now I found the screw stripped and had to buy another carb.I have yet to get the carb installed. Also got the Kury hypercharger w/stinger trap door. Waiting to have the cam job done, so it can be dynoed at the same time. If you don't have the instructions, your dealer might print them out for you.

 

Pull your spark plugs,check the color of the insulator,as far down inside the plug as you can see.Get it golden to light brown and you will be very close.Should start with fresh plugs to get accurate reading.

 

Jeff , you didn't mention if it had a stage 1 air filter setup.
If you don't , then your bike probably would run quite rich (too much fuel).
The best way to go would be to take apart the carb and see if it does in fact have a thunderslide kit in it.
The Harley carb is a wonderful and simple fuel delivery system,and is very easy to tune to your liking.
I just followed the recommendations on the DIY part of the website and there was some great info on doing this yourself.
Your carb would have most likely came with a #45 pilot and #190 main jets.
I had gone from #45 to a #46 and then to a #48 to get my idle/low speed mixture proper.
Then I went and put 2 .025" #4 machine washers under the slide needle to raise it up slightly.
The main jet is fine as it is stock for most people.
Check your plug color and see if it's really dark (rich fuel) or white (lean fuel).
Make a mental note of the throttle position when the engine feels wrong , and you will be able to tell which circuit in the carb needs work,or at least narrow it down.
Knowing what you have will give you a baseline on which way to go next.
The cams are a variable which you may take into consideration , because they will change the way the fuel is pulled from the jets at varying RPM's.
If you did the cams yourself,this should be pretty easy for you.
If you're not a mechical type , find someone in your area that is good at tuning carbs.
If you do a google on thunderslide , you will find some great info on the install , if in fact it has this in it.
Mick