The throttle is not locked - Kawasaki Versys Forum
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post #1 of 61 (permalink) Old 01-15-2019, 03:23 AM Thread Starter
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The throttle is not locked

Yesterday I accidentally noticed that the throttle is not lock forward. When I spin it forward, it moves a little and the engine seems to shut down, basically the idle speed became low and the bike is near to turn off. Here is a video. Is it normal? One colleague of mine said to me that its versys doesn't do that
https://streamable.com/bduzx

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post #2 of 61 (permalink) Old 01-15-2019, 11:48 AM
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No, that is not normal. Something is loose or broken in the switch housing on that side, from the look of it.

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post #3 of 61 (permalink) Old 01-15-2019, 01:16 PM
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Quote:
Originally Posted by ryu10 View Post
Yesterday I accidentally noticed that the throttle is not lock forward. When I spin it forward, it moves a little and the engine seems to shut down, basically the idle speed became low and the bike is near to turn off. Here is a video. Is it normal? One colleague of mine said to me that its versys doesn't do that
https://streamable.com/bduzx

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I think it's a DOT mandated dual throttle cables for a safety aspect on motorcycles. When you are twisting it forward, you should be actually pulling the throttle body closed.

Take a look at your throttle cable's articulation at the exterior of the intake butterfly valve. When the throttle is relaxed, the throttle valve should be resting on the stop screw(this is how you can manually adjust the engine hot-idle speed). When you twist your throttle all the way forward (in decel mode), there should be tension on the throttle return-cable and the accel-cable should be completely slacked.

I think there might be a service procedure of this in the service manual.

Lemme know what you find.
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post #4 of 61 (permalink) Old 01-15-2019, 01:22 PM
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Here is a page out of the service manual. The second picture down is where I am talking about on the throttle body.

I personally think 1350 rpm is rather high. Mine is set to 1100 when hot.
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File Type: jpg throttle adjust.jpg (57.2 KB, 30 views)

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post #5 of 61 (permalink) Old 01-15-2019, 01:38 PM
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Quote:
Originally Posted by RocketyMan View Post
...I personally think 1350 rpm is rather high. Mine is set to 1100 when hot.
The 1350 rpm requirement is for the stator/ regulator to not deplete your battery.
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post #6 of 61 (permalink) Old 01-15-2019, 01:59 PM
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Quote:
Originally Posted by fasteddiecopeman View Post
The 1350 rpm requirement is for the stator/ regulator to not deplete your battery.
Ohhh...gotcha. Yeah that seems to make sense. I've always noticed that when I coast to a stop with my brights on, they seem to dim.

I've always tried to alleviate this with installing LED in the marker lights an license plate light.
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post #7 of 61 (permalink) Old 01-15-2019, 02:06 PM
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Quote:
Originally Posted by 52Degrees View Post
No, that is not normal. Something is loose or broken in the switch housing on that side, from the look of it.
Oops... I didn't notice the heated grips. Thought I saw something else there. My bad.

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post #8 of 61 (permalink) Old 01-15-2019, 03:58 PM Thread Starter
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Quote:
Originally Posted by RocketyMan View Post
I think it's a DOT mandated dual throttle cables for a safety aspect on motorcycles. When you are twisting it forward, you should be actually pulling the throttle body closed.

Take a look at your throttle cable's articulation at the exterior of the intake butterfly valve. When the throttle is relaxed, the throttle valve should be resting on the stop screw(this is how you can manually adjust the engine hot-idle speed). When you twist your throttle all the way forward (in decel mode), there should be tension on the throttle return-cable and the accel-cable should be completely slacked.

I think there might be a service procedure of this in the service manual.

Lemme know what you find.
Quote:
Originally Posted by RocketyMan View Post
Here is a page out of the service manual. The second picture down is where I am talking about on the throttle body.

I personally think 1350 rpm is rather high. Mine is set to 1100 when hot.
I already looked the cable and it seems fine. Besides, the throttle open and close correctly. It moves forward only if I apply some pressure on it, but in any case the throttle should be lock in the neutral (all close) position without moving forward, even if a little bit. In the meantime I recorded another video: https://streamable.com/8kugu
Quote:
Originally Posted by 52Degrees View Post
Oops... I didn't notice the heated grips. Thought I saw something else there. My bad.
Yes, I have the oxford touring heated grips. I don't know if this is important to know.

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post #9 of 61 (permalink) Old 01-15-2019, 04:50 PM
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Quote:
Originally Posted by RocketyMan View Post
Here is a page out of the service manual. The second picture down is where I am talking about on the throttle body.

I personally think 1350 rpm is rather high. Mine is set to 1100 when hot.
According to the manual 1250 to 1350, I have my idle at 1350 to 1375 RPM at 187'F engine water temp on bypass sensor. When in doubt, check the owners manual rather than what someone might think.No offence but many people make serious mistakes by not checking factual info.

https://www.manualslib.com/manual/95....html?page=119
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post #10 of 61 (permalink) Old 01-15-2019, 04:53 PM
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Check idle VDC

Quote:
Originally Posted by RocketyMan View Post
Here is a page out of the service manual. The second picture down is where I am talking about on the throttle body.

I personally think 1350 rpm is rather high. Mine is set to 1100 when hot.
If idle is 1100 RPM, I would suggest checking your idle volts DC, I think you will be shocked to find that you are discharging your battery at idle. That link is page 118 of the owners manual.

https://www.manualslib.com/manual/95....html?page=119
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post #11 of 61 (permalink) Old 01-15-2019, 05:49 PM
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can you get video at the throttle body to show us what its doing when you twist it like that?

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post #12 of 61 (permalink) Old 01-15-2019, 06:55 PM
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Doesn't look normal, provide some picture on your throttle body when your twisting. And on the forward movement, you may sometimes kill the engine which i have experienced and its normal.
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post #13 of 61 (permalink) Old 01-15-2019, 10:56 PM
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It may be normal, if the throttle body is hitting it's stops.

Any cable control will have more travel at the input end than at the output end. Check that the grip will turn just a little bit more after the throttle body contacts it's stops on both directions. If you have too much over travel in the idle direction, you may be flexing the stop or body when you twist the grip hard to the idle position. (Result is the change in RPM) You may have to adjust both of the cables to move the excess free play to the full throttle side.

Be careful, move it too far and you will not go to idle, cables too tight might not go to idle with just letting go of the grip, too loose and throttle inputs will be hard to control.

Or you can leave it like it is and not try to turn it past where the throttle body hits it's idle stop. (This is what I would do )

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post #14 of 61 (permalink) Old 01-16-2019, 03:55 AM Thread Starter
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Quote:
Originally Posted by silviefox View Post
can you get video at the throttle body to show us what its doing when you twist it like that?
Quote:
Originally Posted by Fastoman View Post
Doesn't look normal, provide some picture on your throttle body when your twisting. And on the forward movement, you may sometimes kill the engine which i have experienced and its normal.
Sure, here it is https://streamable.com/h06f8
Quote:
Originally Posted by jpd View Post
It may be normal, if the throttle body is hitting it's stops.

Any cable control will have more travel at the input end than at the output end. Check that the grip will turn just a little bit more after the throttle body contacts it's stops on both directions. If you have too much over travel in the idle direction, you may be flexing the stop or body when you twist the grip hard to the idle position. (Result is the change in RPM) You may have to adjust both of the cables to move the excess free play to the full throttle side.

Be careful, move it too far and you will not go to idle, cables too tight might not go to idle with just letting go of the grip, too loose and throttle inputs will be hard to control.

Or you can leave it like it is and not try to turn it past where the throttle body hits it's idle stop. (This is what I would do )
The normal movement seems fine. The throttle return to its stop position normally and I don't have any rpm changes when I move the handlebar

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post #15 of 61 (permalink) Old 01-16-2019, 07:36 AM
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If you hit the wide open stop also just leave it alone. You should never have to turn the throttle past where it hits the idle stop. I don't know why you tried to in the first place.
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post #16 of 61 (permalink) Old 01-16-2019, 03:27 PM Thread Starter
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If you hit the wide open stop also just leave it alone. You should never have to turn the throttle past where it hits the idle stop. I don't know why you tried to in the first place.
Because I was clean the throttle and I moved it forward accidentally. Anyway, I want to understand why it do that and how can I fix it. Is it just the gas cable to be tightened?

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post #17 of 61 (permalink) Old 01-16-2019, 04:49 PM
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There's nothing to fix. It is working correctly.

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post #18 of 61 (permalink) Old 01-16-2019, 11:46 PM
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Quote:
Originally Posted by onewizard View Post
If idle is 1100 RPM, I would suggest checking your idle volts DC, I think you will be shocked to find that you are discharging your battery at idle. That link is page 118 of the owners manual.

https://www.manualslib.com/manual/95....html?page=119
Yeah...I understand that below the 1300 rpms will potentially discharge the battery. Most of the time I have the engine on I'm cruising with engine speed well above 1300 rpms. But if I am excessively idling for a test of some sort--that could be quite a drain on the battery potentially.

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post #19 of 61 (permalink) Old 01-16-2019, 11:49 PM
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Quote:
Originally Posted by Fastoman View Post
Doesn't look normal, provide some picture on your throttle body when your twisting. And on the forward movement, you may sometimes kill the engine which i have experienced and its normal.
@ryu10 I'd be curious to see exactly this and what the throttle is doing when you are moving the grip like in your last video...To my understanding, the throttle should be resting on the stop when the engine is hot. It's a different story when the bike is cold and it auto elevates the engine speed due to the cam.

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post #20 of 61 (permalink) Old 01-17-2019, 01:29 AM Thread Starter
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There's nothing to fix. It is working correctly.
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Originally Posted by RocketyMan View Post
@ryu10 I'd be curious to see exactly this and what the throttle is doing when you are moving the grip like in your last video...To my understanding, the throttle should be resting on the stop when the engine is hot. It's a different story when the bike is cold and it auto elevates the engine speed due to the cam.
Look, it doesn't seems normal to me.
https://streamable.com/hojn2

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