2019 YZ250F What's the fix for the stretched throttle cable?

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3/12/2020 10:57 AM

I know it's probably been answered but can't find it using the search, my throttle cable is adjusted all the way and there is still slack in the grip. Will a replacement Yamaha cable fix it or is there a better brand?

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3/12/2020 11:02 AM

Did you adjust it at the throttle body as well?

Paw Paw

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3/12/2020 11:13 AM

New cable... motion pro makes good cables

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4/13/2020 8:15 PM

Paw Paw 271 wrote:

Did you adjust it at the throttle body as well?

Paw Paw

2019 YZ250F is NOT adjustable in the throttle body, You will not find anything in the manual to tell you how to do this at the throttle body. You will not find anything on YouTube or elsewhere on the web for a 2019 on how to adjust the cables at the throttle body. Take a look at this picture and you can see that there is no lock nut that would allow you to adjust the cable up or down in the housing:Photo

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4/14/2020 4:21 AM

Paw Paw 271 wrote:

Did you adjust it at the throttle body as well?

Paw Paw

kevin.decker.125 wrote:

2019 YZ250F is NOT adjustable in the throttle body, You will not find anything in the manual to tell you how to do this at the throttle body. You will not find anything on YouTube or elsewhere on the web for a 2019 on how to adjust the cables at the throttle body. Take a look at this picture and you can see that there is no lock nut that would allow you to adjust the cable up or down in the housing:Photo

What am I missing that you couldnt unthread the cable from the throttle body, install a lock nut, then re assemble?

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4/14/2020 6:48 AM

I clearly see adjustment on your throttle body. Thats what all that excess thread is for.

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4/14/2020 10:56 AM

So to take up some of the slack at the throttle body, probably adjust both cables the same length, correct? Great find! This is my first 4 stroke. Thanks y'all!

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4/14/2020 1:20 PM

Adjust it one turn at a time for each cable. Mark the nut or cable nut with marker to make sure your only rotating it one full turn each time you adjust it.

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4/16/2020 8:39 AM

That design is just to lock the 2 cables on the throttle body with no adjustment there.

Older YZF’s had 2 nuts on the carb side of the cable for basic adjustment and another adjuster in the cable for fine adjustment.

Is there a adjuster somewhere along the cable?

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4/16/2020 8:44 AM

Hard to see it but there is an adjuster in one of the 2 cables near the throttle

Photo

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4/17/2020 12:50 PM

So I have the adjustment on the cable to the max and there is still play in the throttle. What I may do is add a jam nut on both sides of the throttle body to take up some slack. Thanks for the pics!

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4/17/2020 5:01 PM

I had to replace my cables with oem in 2018. Motion pro at the time didn’t have replacements. I’d say installling a jam nut at the throttle body is probably the best solution

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4/18/2020 9:15 AM

If it was my bike I'd buy a new cable. just like kb228 said motion pro makes good cables. if its that stretched out you might have some wear on the cables as well. you have a new bike don't be cheap about it.

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4/18/2020 2:05 PM

They do not just mysteriously stretch. Replace the 2 cables before you kill yourself when it goes WFO

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4/19/2020 3:57 PM

You cannot unthread and install a jam nut. It will not clear the swaged end that installs in the throttle body. I wonder if you could use a 2018 cable. maybe switch the throttle body boot.

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4/21/2020 9:48 AM

lumpy790 wrote:

They do not just mysteriously stretch. Replace the 2 cables before you kill yourself when it goes WFO

HA! before I kill myself?!? wow.

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4/21/2020 9:50 AM

I ordered the motion pro cable and will just replace it so please don't let me keep anyone up at night thinking I might modify my brand new bike and ruin my life, sheesh. Just looking for info on if there was another place to adjust the cable other than the sleeve adjustment at the throttle housing. Y'all are passionate!

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4/21/2020 9:56 AM

Its not the cables. Ours was like that from factory new as well as a buddies. We used lock on grips and tried different cams and was able to find one that took up all the extra slack. You are correct you can not get jam nuts in there I had tried that.

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4/21/2020 10:02 AM

steelworker77 wrote:

Its not the cables. Ours was like that from factory new as well as a buddies. We used lock on grips and tried different cams and was able to find one that took up all the extra slack. You are correct you can not get jam nuts in there I had tried that.

Well crap, that makes sense. I did switch to an aluminum throttle tube so it probably has a smaller throttle cam. I'll try switching back.

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4/29/2020 5:03 AM

As it turns out, it was the new throttle tube that was making it worse. The cam and the cable guide are smaller in diameter than the stock tube. Swapped it back and took up some of the slack. Still probably need to replace the cable but too bad about the tube. Photo
Photo
Photo

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4/29/2020 6:25 AM

Oury grips! what a blast from the past! lol

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4/29/2020 7:00 AM

DynoDan22 wrote:

Oury grips! what a blast from the past! lol

Man, I'm trying everything to fix this arm pump. These are good but I think grips without any waffle are working out better. Seems like smaller the diameter, better/easier to grip.

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4/29/2020 8:36 AM

Arm pump? Never heard of it. Please elaborate! Lol

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