Print

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

[icy]

Per the S&S manual, there is to be no Dyno runs until the break in is complete. So i assume that there will be a couple more ponys to be found when its run up after the break in. Maybe im wrong in that assumption.

[GMR-PERFORMANCE]

   Sorry but you need to look into that further with S&S.  .. Engine is not a version that had a pre jetted carb or ign module with limiter..... It needed to be tuned and they offer systems with maps if you do not have that then TUNE THE ENGINE.. and really if you have an issue/ failure due to tune  S&S should now pay for that?? 

I am only guessing as you have skirted the issue. But that the bike has some sort of partial tune?? There is not reason for that the bike can and should be fully tuned. That way you know that the afr is correct and that the bike is running correctly.


These engines will run on a basic tune. I have one now that had a starter map loaded and another shop said put 1000 miles on it then tune it. Customer wanted me to check it out " as he had heard that it should be tuned... Well the 15%-25% throttle from 1750 to 2750 was all rich .. like 10-108 AFR. Then under light roll on just over 25% throttle and 3000 rpm the AFR banged up into the 18. + range.. But guess what the bike ran down the road and customer had no idea he is harming his brand new engine.

[icy]

i will look into what exactly was done before i ride it again... I was under the understanding that after the break in there would be a little fine tuning left to do. it may just be my misunderstanding. thanks for the info.

[harleytuner]

On the bikes I build after the heat cycles I do a tune to 4K RPM then it goes to the customer for a couple hundred miles then back for the final tune. I know there are a lot of opinions on full tuning a fresh build but for me this is how I do it.  Never had a problem in 14 years doing it this way so I don't intend to change. I've never been a fan of the drop your bike off today and pick it up tomorrow fully built, heat cycles and final tuned.

 Maybe the tuner on the OP's build does something similar.  Get's it partially tuned then lets the customer break it in before final tuning it.

[icy]

That is what was done. I have no problem with it and did not tget into the" forbidden range.". Its headef  back to him after work to finish up. She will be at 1100 miles by the time he gets it tonight. It was tuned to 4k rpm and i was instructed to not go above 3500. And that is what S&S reccomended as well. Looking forward to getting it back though!!!  Ride safe!!!

[icy]

well, i have 5k miles on it now and am enjoying every mile! no problems with anything. just changed the bars out for 10" twin peaks bars last night. Still thinking about what to do to get a few more miles before fuel stops as the 2 guys i ride with are both averaging about 10-12 mpg better than me. thinking of either doing a baker od kit or i have seen some talk of changing the overall gearing in the primary. this is something i need to look into further. i have yet to see another 124 up here in NW Iowa but im sure i will in a couple weeks out at sturgis.

[GMR-PERFORMANCE]

TUNE..  10-12 less so you are getting what for MPG on the hwy?? speed you are going weight on the bike and how you figure MPG

[HILLSIDECYCLE.COM]

After owning/tuning on a Dyno for almost 20 years now, we heat cycle them, 13 mile method-specific test ride unless inclement weather, and then tune.
NEVER have we had an issue in regards.
The sooner you can have the engine running correctly, the better.
Scott

[icy]

it has nothing to do with the tuning. I'm getting an average of 34 mpg if i keep it 70 or under. the guys i ride with, one has a metric bike and the other has overdrive. the other Harley i ride with turns about 5-600 rpm less than me at the same speed. that's where the mileage difference is. the difference is i can run away from any of them..  dont get me wrong, im not complaining, that's better than the stock 103 ever got. just looking to maybe extend the riding time a little bit between fuel stops.

[GMR-PERFORMANCE]

well I guess at this point we can agree to disagree. Your MPG has everything to do with the tune.

[FlaHeatWave]

it has nothing to do with the tuning. I'm getting an average of 34 mpg if i keep it 70 or under. the guys i ride with, one has a metric bike and the other has overdrive. the other Harley i ride with turns about 5-600 rpm less than me at the same speed. that's where the mileage difference is. the difference is i can run away from any of them..  dont get me wrong, im not complaining, that's better than the stock 103 ever got. just looking to maybe extend the riding time a little bit between fuel stops.

I take it by now (5k miles) that you have a "complete tune"?

You didn't say, but it sounds like the other HD that you ride with has a 6sp with a 6 gallon tank (and overall taller gearing as well)?

34 mpg is not too bad considering you can run away from them anytime...And that is "more than your 103 ever got"

Check your mileage a few tanks when you are riding by yourself, not with your Buds, and see if that makes any difference? Ride your own ride, keep your bike in its sweet spot...

Not really a comparison, my 117 consistently gets 35-38 around town or playing on the back roads, 40+ on the Interstate at 80+, all 2-up and loaded. (which is more than others with similar Builds have reported)

[icy]

yes its complete tune. and yes the other Harley i ride with has 6 speed and 6 gal tank. i have a 5 speed so the gearing is the difference between mpg im sure. 2 up or single doesn't seem to make a difference for mileage or not really enough to talk about. This thing has so much power all over the rpm band its just crazy. that's why i am considering the 6th gear od or changing the gearing between the motor and trans to make an overall taller gear ratio. just concerned that with doing that i may have trouble starting off the line. and GMR you cant tell me that my running higher rpm wont use more fuel. 5th gear just pulls and pulls and pulls. shes been up over 120 once or twice and i got off it but still have lots of throttle left. even if i dont do anything else with the gearing its a blast to ride.

[FlaHeatWave]

Install the SE 6sp OD gearset, or one of the Baker 6 speeds

'Have the SE 6sp in the '01 Switchblade, the sweetest shifting Harley I have ever ridden...

[GMR-PERFORMANCE]

Really you are getting the best MPG ever rock on with it .. 

[icy]

me wrong gmr. Im not discounting your experiance or know how, but i also know that just running a higher rpm requires more fuel. My thinking. Is if i can drop 5-600 rpm at 75-80 that i will be in the same ballpark milage wise per gallon. If there is another way please tell me.