Honda CBR250R Forum : Honda CBR 250 Forums - View Single Post - Bad throttle position sensor
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post #4 of Old 11-22-2019, 12:17 PM
jkv357
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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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