This is the first time I have had a Dynojet evaluation done to this 2001 883/1200 Sportster. I'm not 100% sure what to make of the results. I'm looking for suggestions and comments.

2001 883 converted to 1200 with Buell Thunderstorm heads, Crane adjustable pushrods, SE performance clutch, SE bolt in cams, S&S Super E carb.

It's running a bit lean, and I have a big dead spot around 2000rpms. The only thing I have done since the dyno run is opened up the fuel/air adjustment on the S&S by 1/4 turn. It seems a tad bit better, but I'm not satisfied. Should I pay the $175 plus parts for the shop to Dyno tune it, or is there something else you would suggest? This place rocks....thanks for any and all help!

Why did they stop the pull at 4500rpm? That combination of parts should power peak a bunch higher than that. It was still climbing at a healthy clip when they shut it down.

The a/f is VERY rich through most of the pull, not lean. Looks like it's got some reversion going on. What kind of pipe?

it's got a set of Python slash cuts. any help is greatly appreciated, and i have no idea why they stopped the run at 4500rpms...infact, i didnt even notice that until you pointed it out.

rokpunk,
Don't know how far you are from Winchester VA, but if your close i recommend Skip's Cycles. See my dyno run for more info. Takes his time and does dyno tune for 150.00.

Sorry to say, but that Dyno shows some problems. Your carb is really out of tune. Unless you want to get into it yourself, I'd get a good wrench to tune it for you...

Hi I have found on the odd time that the airfilter element can cause this,m try a run with out it on, but yes people the carb needs a needle change and most likely a main jet, I have seen dyno stop at 4500 as it does not pull pass there as it is too rich.
Good luck. It mite pay to check with S&S to get stand jet , needle seting for that carb and bike.

Needle change?

I got my dyno tune today and I got 72 hp 74 torque Thunderstorm heads wisco k-1700 pistons se .497 cams hc sideburner 2 into 1 pipe stock cv carb with 88 needle 42 slow and 200 main. my parts are out of box.your numbers are to low so get a good tuner.

sounds like you used some good stuff, i would change the pythons for a good 2 into 1 like the Thunderheader thren tune your carb to that pipe you will see big gains from off the line to red line. I have all most the same set up on my bike and when i went to a thunderheader it all came alive. only draw back it takes a little more time to tune the carb with that pipe but not impossible

You are wasting your money if you don't use a good shop to tune your bike. I don't care how carefully thought out your package is, unless you test it you don't know. Dyno tuning a bike is not hard on a bike and how much is $200-300 after what you already spent. I think that it is usually about 4 pulls up to 6000/6500 rpm's will give you results. You should have picked a point after a few bolt-ons to base line your bike. If you had done that you would at least know if you are getting better or if you are moving in the wrong direction. Just because a part has worked well for someone, it may not do the job with the other items you picked. If you can surf the web, you can find a lot of information for free that is going to be better than what your buddy tells you will work.
http://www.nrhsperformance.com
These guys know HP and how to design a package that will work.
Make sure you really know what you want at the end of the day.
I have seen many bikes, cars, boats that are the biggest and baddest and they don't work unless they are parked in front of a bar. At least with my bike I know what it will do on a dyno, I am not guessing. Most guys talking about a 100 HP don't have a clue and don't have the balls to see how they have really spent their money.