I have been trying to tune my motorcycle for the last 4 months. I have a 2018 flsl, 124 upgrade (bigger bores, ported heads, upgraded Harley injectors, larger metal throttle body, thunder header exhaust pipe, Harley Davidson high flow air intake filter style oval shaped, s&s 550 cams.) and I have been through 3 base maps. And we bought a tune from dynojet.
Map 1. Kept hitting a rich code and the ve cells wouldn't fill. throttle said it was only opening up to 10%.
Map 2. "Oh shit" throttle response from 0 load bike falls flat on its face.
Map 3. Rich codes and idle problems. (Likes to idle at 770. Then fluctuates to 1,300.) but at least we were getting better ve cells filled in because the throttle position was finally registering correctly.
This current map 3 has been pissing my mechanic off and myself. We have cut the low end 8% and it still doesn't force the bike to cough. But we are still getting weird idle fluctuating between 750-950. Sometimes hits 1,300. Then back down towards 950, then 750-950.
The target idle is set to 998 on the ecm. All sensors are coming back to 1.0 or 1.30 on the computer. There are no vacuum leaks. We tried the carb cleaner test. Nothing changed the idle. It is still running rich.
The spark plugs are black. The front header is showing signs of trying to clear it out.
The bike is still running rich. We have cut cut cut. Tried the auto tune. The people at dynojet had also sent us wrong tunes before. This last time asking them about the oh shit throttle response they sent us a new base map that has a pause in the throttle.
We are getting ve cells filled. This latest tune produced better hits on the log than the first two.
It's driving us nuts. Everything else is running awesome except the idle and rich codes. It's still running rich.
we have done 150 runs total across all maps and edits. and yes we paid for a dynojet tune to begin with.
The next thing the mechanic is going to try is a pro tune with the sensors hooked up. I'm not asking for a tune, I'm just looking for an audience to feel the frustration with me.