Flat throttle (no snap)
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Cruiser
Joined: Nov 2014
Posts: 182
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From: East Tennessee
Flat throttle (no snap)
I bought a 2015 RG (never rode it) had dealer install Stage IV kit (10.5's, SE CNC's, 259's, 58TB, download). Rinehart mufflers and SE Stage 1 AC kit. Bike responded "flat" / zero "snap". HD said its normal it will run good up top.
After 500 miles I started rolling on it taking it up until I realized it rev-limits at 5500 indicating it didn't have the correct download. The dealer argued and showed me their "proof" on some print out.
Off to Bob at RC cycles he made 100/104 and told me "something is wrong". He suggested compression test first then check for "sumping". 95/96 compression so I had the cam case pulled to find the o-ring was fine no indication of "sumping".
With the cam case open I decided to have Wood 888's installed and a Jackpot 2/1/2 and the bike went in for a tune and the tuner could not get it to run well down low. I took the bike back to Bob @ RC the bike once again fell short at 108/113. Bod stated "I expected nothing less than 115 hp and well in 120's TQ".
Same flat throttle response with HD download, TTS tune #1, TTS tune #2 and TTS tune #3. HD suggests starting with replacing the fly-by-wire and go from there.
My buddy (same fat-@$$ as me) 2013 RG 103 with 888's, big sucker and Thunder header 104/110 walks away from me as his bike has snap and makes the power instantly.
Any ideas before I go throwing more money at this thing?
After 500 miles I started rolling on it taking it up until I realized it rev-limits at 5500 indicating it didn't have the correct download. The dealer argued and showed me their "proof" on some print out.
Off to Bob at RC cycles he made 100/104 and told me "something is wrong". He suggested compression test first then check for "sumping". 95/96 compression so I had the cam case pulled to find the o-ring was fine no indication of "sumping".
With the cam case open I decided to have Wood 888's installed and a Jackpot 2/1/2 and the bike went in for a tune and the tuner could not get it to run well down low. I took the bike back to Bob @ RC the bike once again fell short at 108/113. Bod stated "I expected nothing less than 115 hp and well in 120's TQ".
Same flat throttle response with HD download, TTS tune #1, TTS tune #2 and TTS tune #3. HD suggests starting with replacing the fly-by-wire and go from there.
My buddy (same fat-@$$ as me) 2013 RG 103 with 888's, big sucker and Thunder header 104/110 walks away from me as his bike has snap and makes the power instantly.
Any ideas before I go throwing more money at this thing?
Last edited by SleepyBagger; May 4, 2015 at 06:25 PM.
So the compression is low? Who installed the 888s. I'd be irritated too. Everthing being up to snuff motor wise, compression, cam install and pushed adjustment that bike should haul the mail. I can't see it making that big of difference but could the exhaust gaskets be squished to the point they are into the port and pipe restricting flow. I don't know just thinking of something odd happening here. Also doubt it would run as good as it does but are the cams a tooth off. Hope you get it dialed in soon.
Thread Starter
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Cruiser
Joined: Nov 2014
Posts: 182
Likes: 0
From: East Tennessee
So the compression is low? Who installed the 888s. I'd be irritated too. Everthing being up to snuff motor wise, compression, cam install and pushed adjustment that bike should haul the mail. I can't see it making that big of difference but could the exhaust gaskets be squished to the point they are into the port and pipe restricting flow. I don't know just thinking of something odd happening here. Also doubt it would run as good as it does but are the cams a tooth off. Hope you get it dialed in soon.
To the best of my knowledge its not mechanical.
Thanks for taking a shot at it.
Thread Starter
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Cruiser
Joined: Nov 2014
Posts: 182
Likes: 0
From: East Tennessee
I did not oversee the compression test. Was told its correct. I just discovered my tester doesn't fit those sesame seed Harley plug holes......grrrrrr.
Although compression was ruled out early on I'll have it tested again.
Thank you.
Although compression was ruled out early on I'll have it tested again.
Thank you.
Thread Starter
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Cruiser
Joined: Nov 2014
Posts: 182
Likes: 0
From: East Tennessee
I pulled the seat, popped the tank, disconnected the ACR's, pulled the A/C and propped the TB valve open only to discover I need a flipping Harley sized spark plug adapter.
This is why I don't turn wrenches on them.
I'll have compression checked (again) by Frank at McG's. before changing out the fly-by wire.
Fuel, air, spark or something to do with 2015's new ECM is where everyone is leaning at this point but ALL hypothesis are welcome.
Thank you.
This is why I don't turn wrenches on them.
I'll have compression checked (again) by Frank at McG's. before changing out the fly-by wire.
Fuel, air, spark or something to do with 2015's new ECM is where everyone is leaning at this point but ALL hypothesis are welcome.
Thank you.
Last edited by SleepyBagger; May 3, 2015 at 08:48 PM.
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I'm not up on all the new bikes, but something went wrong with the initial work and the dealer isn't admitting to it. Sounds like fuel to me, but the Can-Bus electrics are very finicky, and if that was spliced improperly, that could be a source of problems as well.
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Thread Starter
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Cruiser
Joined: Nov 2014
Posts: 182
Likes: 0
From: East Tennessee
Bob, Ron and Al all agree (so dose Frank) there is something wrong. Hell my wife says it "feels dead" when she rode it.
I pulled the seat, popped the tank, disconnected the ACR's, pulled the A/C and propped the TB valve open only to discover I need a flipping Harley sized spark plug adapter.
This is why I don't turn wrenches on them.
I'll have compression checked (again) by Frank at McG's. before changing out the fly-by wire.
Fuel, air, spark or something to do with 2015's new ECM is where everyone is leaning at this point but ALL hypothesis are welcome.
Thank you.
This is why I don't turn wrenches on them.
I'll have compression checked (again) by Frank at McG's. before changing out the fly-by wire.
Fuel, air, spark or something to do with 2015's new ECM is where everyone is leaning at this point but ALL hypothesis are welcome.
Thank you.