On/off throttle at end of long ride - Kawasaki Versys Forum
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post #1 of 9 (permalink) Old 10-26-2017, 08:21 AM Thread Starter
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On/off throttle at end of long ride

Greetings Versysland -

I have been on a few long rides on my new Versys 650. At the end of the day, the throttle seems to become more snatchy. It is more noticeable at the end of a long run than it is at the beginning.

Wonder if any of you have noticed the same thing, and if so, what is the cure?

Just because I am Deaf does not mean I can not roar.

Long distance two stroke scooter rider moving onto even longer touring.
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post #2 of 9 (permalink) Old 10-26-2017, 09:02 AM
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Cable stretching? Is the throttle slack the same when you end as it was when you start?
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post #3 of 9 (permalink) Old 10-26-2017, 09:23 AM Thread Starter
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It was adjusted two rides ago, but I would wonder why it changes at the end of each ride. I will need to mark the free play at the beginning and compare it to the end. I do doubt that this is it.

Just because I am Deaf does not mean I can not roar.

Long distance two stroke scooter rider moving onto even longer touring.
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post #4 of 9 (permalink) Old 10-26-2017, 10:54 AM
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Maybe it is a combination of factors?
- The chain is warm and slightly longer, resulting in slightly increased slack.
- The tires are warm and as a result are running slightly higher pressure.
- The engine has finally gotten up to full operating temperature with the oil above 80șC, the airbox is heat soaked, etc., the barometric pressure has changed, and the computer is leaning out the mixture as a result.
- hot and thin oil makes the clutch engage more abruptly.
- the fuel in the tank has warmed up, so it vaporizes easier when injected, but also doesn't cool the engine as much.
- You are weary and not riding as smoothly as when you were when you headed out.

Add up all the little factors...

2011 V650 in Black, well accessorized.
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post #5 of 9 (permalink) Old 10-26-2017, 08:20 PM
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Quote:
Originally Posted by RoaringTodd View Post
It was adjusted two rides ago, but I would wonder why it changes at the end of each ride. I will need to mark the free play at the beginning and compare it to the end. I do doubt that this is it.
My adjusters weren't locked "tight" when I got mine and after a ride I would have slack again. Took me a couple of rides to find the problem. Two minutes to fix.
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post #6 of 9 (permalink) Old 10-26-2017, 08:51 PM
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Quote:
Originally Posted by 16VGTIDave View Post
Maybe it is a combination of factors?
- The chain is warm and slightly longer, resulting in slightly increased slack.
- The tires are warm and as a result are running slightly higher pressure.
- The engine has finally gotten up to full operating temperature with the oil above 80șC, the airbox is heat soaked, etc., the barometric pressure has changed, and the computer is leaning out the mixture as a result.
- hot and thin oil makes the clutch engage more abruptly.
- the fuel in the tank has warmed up, so it vaporizes easier when injected, but also doesn't cool the engine as much.
- You are weary and not riding as smoothly as when you were when you headed out.

Add up all the little factors...
I just want to say KUDOS! to Dave for putting together this list. Seldom do any of us think of all the things that go in to how a ride plays out. My first thought when I saw the question was the last one on this list. I KNOW I don't ride as smooth at the end of the ride.

Forty years away from 2 wheel fun. Sure is great to be back smelling the roses!!!
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post #7 of 9 (permalink) Old 10-26-2017, 09:12 PM
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Practicing your clutch control can make the bike a lot smoother. The clutch has many positions between full off and full on. Suggest practicing how slow you can go in a parking lot to improve your clutch control - drag rear brake and feather clutch while keeping revs up off idle.

Two things will effect throttle snatching on the Versys. Excess slack in the throttle cable, you can put more tension on it if you keep the cable well lubed, and too much chain slack. Also keeping the clutch cable lubed and adjusted too is important. That said the Versys has a lot of engine braking so if you suddenly release the throttle without also feathering the clutch you will get jerkyness.
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Last edited by twowheels; 10-26-2017 at 09:15 PM.
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post #8 of 9 (permalink) Old 10-27-2017, 09:01 AM
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The fueling on my US-spec Gen3 makes it difficult to smoothly roll on throttle after decel due to an overly-lean condition (this is made even worse by E10 gasoline). This symptom increases as the engine heats up and the ambient temp goes up, which is why I'm going to try the Booster Plug, which fools the ECU into thinking the ambient temp is much cooler than it actually is and thus not cutting the fuel so much on decel. Based on user reports, I don't expect it to be a miracle cure, but it should help noticeably.
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2015 Versys 650 ABS
AMA, MSTA, Retreads

Nat'l Cycle "Sport-Touring" screen; Givi hand guards; BMW Sport Grips; Omni-Cruise throttle lock; Motowerk mirror extenders, side stand foot & highway pegs; Denali Mini Soundbomb horn; SW-Motech top rack, Quick-Lock Evo side racks, wide foot pegs & GPS shelf; Givi E-22 side cases & V-47 top case; RKA 13L Shiloh Road tank bag; Hyper-Lites; Sargent seat; Shoodaben ECU reflash; decalectomy.
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post #9 of 9 (permalink) Old 10-27-2017, 11:00 AM
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Originally Posted by Doug Just Doug View Post
The fueling on my US-spec Gen3 makes it difficult to smoothly roll on throttle after decel due to an overly-lean condition (this is made even worse by E10 gasoline). This symptom increases as the engine heats up and the ambient temp goes up, which is why I'm going to try the Booster Plug, which fools the ECU into thinking the ambient temp is much cooler than it actually is and thus not cutting the fuel so much on decel. Based on user reports, I don't expect it to be a miracle cure, but it should help noticeably.
You will be pleasantly surprised Doug!
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I still have a full deck.
I just shuffle slower.
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