Bad throttle position sensor - Honda CBR250R Forum : Honda CBR 250 Forums
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post #1 of 4 Old Today, 10:01 AM Thread Starter
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Bad throttle position sensor

Does anybody have idea about a failing throttle position sensor,
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post #2 of 4 Old Today, 10:25 AM
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Originally Posted by aruninchoor View Post
Does anybody have idea about a failing throttle position sensor,
What are the symptoms you are experiencing, and what leads you to think the TPS is the cause?
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post #3 of 4 Old Today, 10:45 AM Thread Starter
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The mechanic have cleaned throttle body,fuel pump and fuel injector, spark plug is fine.
Issue was cold starting and lack of power,and if i roll off throttle ,the bike will turn off.
The ideal is not stable,and sounds rough.
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post #4 of 4 Old Today, 12:17 PM
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Pretty sure you can check the TPS, and set it per spec, with an Ohm meter.

That would be the first thing to try. If it's bad I would think you wouldn't be able to get it set properly.

I would want to look at the plug color as well to determine if the mixture may be overly rich or lean, which may point you in the right direction if the TPS checks out.

Removing the air filter temporarily could also give you some indication. If it ran better without a filter it would tell you it's running rich. It should run worse if the mixture is correct or lean.
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