View Full Version : Very Happy with 1200C dyno results


supercharger
3rd September 2005, 21:33
Just got back from Carolina Harley where I had my 1k service done and then a dyno base run today.

First the numbers as they are hard to read on the scan:

POWER= 77.0 HP TORQUE= 78.4 ft-lbs :banana

As you can see from the chart I need to go up on my pilot. I had a 45 in it but it felt a little rich off idle. I put the original 42 back in 3 turns out and it runs STRONG off idle, but a little too lean. I think I'm going to do what Thunderpaw did and order a 44 pilot from J&P. It should split the difference nicely.

Any other advice/comments would be welcome.

http://xlforum.net/photopost/watermark.php?file=3789&size=1

xl1200r
3rd September 2005, 22:12
What have you done to your motor? Any headwork, exhaust, cams?

daesdaemar
3rd September 2005, 22:16
Very similar numbers to mine... Nice!!!

http://xlforum.net/photopost/showphoto.php?photo=3112&cat=500&ppuser=2786

supercharger
4th September 2005, 00:26
What have you done to your motor? Any headwork, exhaust, cams?

Stock engine, Cycle Shack tapered slip-ons, 2 M4 shims on stock needle. Has a 42 pilot jet now set 3 turns out, but it is being replaced with a 44 as soon as it arrives to take care of the leaness off idle to 2,500rpms. Also have the Ness Big Sucker with the stock ham can.

The bike runs very strong all over the powerband, gets 45 mpg around town and sounds awesome.

I'm a happy camper with this stage 1 set-up.

:banadanc :banadanc :banadanc

mardyk
4th September 2005, 01:06
Wow, those are pretty good numbers. I have the same setup exept air cleaner which is SE on my 1200R. I have a flat spot at 3900 though. Haven't checked it on a dyno yet.

CBAS5
1st October 2005, 06:12
Also have the Ness Big Sucker with the stock ham can.


How did you get the ness big sucker to work with the stock ham can? I thought that wasn't possible?

supercharger
4th October 2005, 15:07
You have to remove the cover mounting barcket from the stock filter element(easy) and modify it to work. I would up having to do some trimming with a hacksaw and used a hole saw to cut the center out so it would fit flush against the filter. It takes some work, but its not very hard to do. You will see what you need to remove by test fitting the bracket.


I have since stopped using the stock cover and bought a H-D air cleaner "insert" for $25 that fits perfectly on the big sucker and looks really nice. I got the chromed "Live to Ride" insert but all of them should fit the stage 1 big sucker. I like the open element look and it allows for WAY more leg room.

I have pictures of it in my gallery

greanmeany1
13th October 2005, 20:53
i have the same set up . i have the HD 185 main jet it came with still in their. what main jet did you dyno with and what was the af ratio ?

rider1951
13th October 2005, 23:37
What is the difference in size between a 42 and a 44? I have a 45 in mine and I think its too rich. Was thinking about going back to the 42. I'm running a Supertrapp 2 into 1, SE air kit, 170 main jet and I think the needle is an N65B. I'm only getting about 38-39 commuting back and forth to work. I get 48-49 out on the open roads.

supercharger
14th October 2005, 01:27
i have the same set up . i have the HD 185 main jet it came with still in their. what main jet did you dyno with and what was the af ratio ?

Where do you live? My 05 came with a 180 main, which is what I dyno'd with. I tried a 185 (not on the dyno) for shits and giggles and the bike felt too rich/sluggish.

My A/F ratio is posted on the link in my first post. It was sketchy when the throttle was wacked open (normal) then settled down to a nice flat trace right on the 14 line. That may seem lean, but I have Cycle Shack slip-ons. They are made with a baffle that blocks the dyno probe from being inserted to the proper depth. The probe is more than a foot from the ideal location. Being much closer to the muffler outlet will definately make the A/F ratio look a little lean, from the slight reversion pulling fresh air into the muffler. All in all, I feel the bike is running too well to mess with it any further.

What is the difference in size between a 42 and a 44? I have a 45 in mine and I think its too rich. Was thinking about going back to the 42. I'm running a Supertrapp 2 into 1, SE air kit, 170 main jet and I think the needle is an N65B. I'm only getting about 38-39 commuting back and forth to work. I get 48-49 out on the open roads.



I don't know the size difference, but I can tell you my bike ran stronger and had better throttle response when I went back to the 42 pilot after trying the 45. In fact, the throttle response was TOO touchy with the 42. The 44 feels perfect in the bike.