Weird thing happening at 112 MPH
Thread Starter
|
Cruiser
Joined: Nov 2005
Posts: 101
Likes: 0
From:
Weird thing happening at 112 MPH
I am asking this question for 2 buddies of mine. One has a Street Bob and the other on 05 Dyna Super. Both have nearly the exact same experience.
Taking the bike up to 180 KPH (112MPH) with the throttle wide open the bike seems to stop pulling at the same rate, but if they back off...one said just a bit and the other said !/4 of a turn...the bike starts to really pull again...
What is causing the above to happen and what can be done to correct it. IS there anyting short of a stage 2 kit that can correct it? Would something like the PC3 or TFI solve this?
Taking the bike up to 180 KPH (112MPH) with the throttle wide open the bike seems to stop pulling at the same rate, but if they back off...one said just a bit and the other said !/4 of a turn...the bike starts to really pull again...
What is causing the above to happen and what can be done to correct it. IS there anyting short of a stage 2 kit that can correct it? Would something like the PC3 or TFI solve this?
Unsubscribed From Forum
Joined: Jun 2006
Posts: 276
Likes: 0
RE: Weird thing happening at 112 MPH
I am certainly no expert but I know that my new PC III has you set both the closed and full open throttle postions. I am sure that is important for fuel mapping. I have read that a lot of drivability problems are related to improper throttle position calibration......
Road Warrior
Joined: Apr 2006
Posts: 1,299
Likes: 1
From:
RE: Weird thing happening at 112 MPH
While we're on the subject of PCIII's and mapping, I have to say I've cut my bike off about 3 times now while in first moving from a dead stop. I guess it's dumping more fuel now as opposed to its old lean condition, but it ain't fun to all of a sudden be NOT running with a green light in front of you and an Excursion with mom and the kids behind you.
Seasoned HDF Member
Joined: Jun 2005
Posts: 12,946
Likes: 32
From: Colorado Springs, CO
RE: Weird thing happening at 112 MPH
It's a tuning issue. By releasing the throttle just a hair, you're altering the Air to Fuel ratio; basically cutting the amount of fuel. This makes the bike's engine run leaner, and lean always makes more power, but lean also causes detonation, and causes an engine to run alot hotter. So....what's the deal? Your bike is probably running a little rich at WOT (Wide Open Throttle). This is fixed on EFI bikes by using the Screamin' Eagle Race Tuner (SERT), or a Power Commander. To really benefit, either system needs to be tuned on a dyno. Most larger Harley Shops have a dyno, just check around. It's gonna cost some money, but more power always does...[
]
Carburated bikes compensate by changing the jets in the carburetor...[&:]
joe
]Carburated bikes compensate by changing the jets in the carburetor...[&:]
joe
Trending Topics
Tourer
Joined: Jun 2005
Posts: 429
Likes: 0
From:
RE: Weird thing happening at 112 MPH
Weird things usually do happen when you have a cruiser running over 110 mph.....
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Times Harley-Davidson Chucked Tradition Out the Window
Verdad Gallardo
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
