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post #1 of 3 (permalink) Old 04-09-2018, 02:02 PM Thread Starter
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Join Date: Dec 2016
Location: South Carolina
Posts: 73
PV Throttle Responce

I have a 2017 RGS that had a Stage III kit installed, SE Breather and Rinehart Dual Exhaust, dyno'ed at HD with a PV tuner. Is there any way to adjust the throttle response with the PV without having it on a dyno? Would Auto Tune work to solve this problem? There was some spark knock about 5 months ago and they checked and adjusted the timing and also told me I put bad gas in and try gas with more octane, 93 is all I use. Thanks
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post #2 of 3 (permalink) Old 04-09-2018, 07:25 PM
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Join Date: Aug 2014
Location: Florida
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The way I’m reading it, your Stage III was installed, everything ran good and about 5 months ago your bike developed a “knock”, and you’re now wanting to get rid of that knock.

Any major changes since the dynotune? (i.e. weather is significantly hotter/major humidity change than when it was tuned, changes to header/pipes/breather, or consistently purchasing same bad gas from a less than reputable source). I’ll assume altitude is the same.

The dealership would probably have been more conducive to helping had you addressed it as soon as you noticed it, especially if it came on the heels of the tune. It doesn’t sound like they’re interested in helping now unless they’re compensated for their time and labor.

I’m curious, what did they say after you told them it’s been doing it for 5 months, and you’ve filled it up 20-30 times since, at different stations, with different brand gasoline and the issue persists?

Okay, so what are your options? I don’t believe autotune will fix the issue.

If you purchased the tuner from Fuel Moto, call them. They’ll hook you up.
If you purchased it elsewhere, (like your dealership) see if they can’t provide another base map for your bike’s application. Maybe they’d provide you with a more recent map of a similar build as yours or hang onto one for you of an upcoming build.
Try a map from Dynojet’s website. I’ve heard mixed reviews about their downloadable maps.
Call Dynojet. Again, mixed reviews, my experience was good, but in the end they pointed me to a base map on their website that mostly resembled my application. A few autotunes later and my bike ran pretty damned good.
Find someone who has your same setup, and get their map.
Hopefully someone in this forum who knows what they’re doing can walk you through via email or phone call. There are a few in here who are very competent.

Lastly, take a look at this. If you don’t know what your doing, call Dynojet after you’ve tried to understand the instructions as much as possible and see if they can’t walk you through the process. You have the right tool to fix your issue, it’s just a matter of knowing how.


Last edited by BlazingSaddle; 04-09-2018 at 07:27 PM.
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post #3 of 3 (permalink) Old 04-09-2018, 08:41 PM Thread Starter
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Join Date: Dec 2016
Location: South Carolina
Posts: 73
The spark knock happened in Sept of 2017. I had just got back from a run to Key West and the bike ran great down and back, I live in South Carolina. The temp going there was very hot and humid and there was no problems. About 2 weeks after that was on another ride and could feel the knock and rattle from the engine. Stopped at HD, the same place that did the Stage III install and they adjusted the timing and knock sensor. Shortly after that I had surgery on my arm, so I haven't been riding much. Trying some now, but it just doesn't feel like the throttle response is very good, doesn't have the snap that it did. So while I was heeling they had the bike, they checked everything again and when they did, a factory rep was in from Dynojet. The Rep said that nothing looked out of place with the map and was strange for it to happen all of a sudden. That is when they thought I had gotten some bad gas, since I had just gotten back from Florida and the bike ran great going there and back.
That's why I was wondering if the auto tune would work with the throttle response or do I need to have it dyno'ed? Thanks for the Help,,,
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