Throttle problems!

Chris Costello

XS650 Enthusiast

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• May 31, 2017

• #1

1981 Yamaha XS650
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So, when I start the bike it will idle just fine until I pull the throttle. Once I pull the throttle it won't seem to go back all the way unless I snap the throttle back hard. Here's a quick video showing the problem.

 

nj1639

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• May 31, 2017

• #2

I'd check up at the throttle on the handlebars for any frays in the actuating cable, check the routing of the cable itself but most likely the throttle plates in the carb(s). Check their centering. Gotta pull 'em to see.

 

Chris Costello

XS650 Enthusiast

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• May 31, 2017

• #3

nj1639 said:

I'd check up at the throttle on the handlebars for any frays in the actuating cable, check the routing of the cable itself but most likely the throttle plates in the carb(s). Check their centering. Gotta pull 'em to see.

Click to expand...

I think you're right, looks like a problem within the carb

 

nj1639

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• May 31, 2017

• #4

Yeah, Chris. I just saw where you disconnected the cable from the carb and it's still hanging. Suspect the throttle plates.

 

Chris Costello

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• May 31, 2017

• #5

Here's a video of the plates.