YZ250FX running hot

Tuna
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9/2/2018 6:59pm
My FX seems to be running hot lately. I recently installed a new fuel pump. More popping on decel lately and the fan is turning on a lot quicker than it usually does. I have not checked the plug yet. Coolant level is fine, it never boils over or pukes coolant. Just seems to be running hotter than it normally does. feels a little lean.
Any ideas?
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kb228
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9/2/2018 7:02pm
TPS would be my first guess
Tuna
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9/3/2018 5:45am
kb228 wrote:
TPS would be my first guess
How can you tell it’s TPS?
Tuna
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9/3/2018 5:46am
Choke?

Clogged fuel injector?

Fuel filter?
Could be the injector. I put a new pump in recently but didn’t replace the filter, just cleaned it out. I run a filter sock in my tank.

The Shop

kb228
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Mansfield, OH US
9/3/2018 5:47am
kb228 wrote:
TPS would be my first guess
Tuna wrote:
How can you tell it’s TPS?
You just check the voltage at closed and open throttle. If its not to spec it will cause the bike run lean or rich. decel pop means its running lean and running lean causes heat issues.
imoto34
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9/3/2018 9:24am
kb228 wrote:
TPS would be my first guess
Tuna wrote:
How can you tell it’s TPS?
It's not the thrttole senser.
Tuna
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9/3/2018 4:35pm
kb228 wrote:
TPS would be my first guess
Tuna wrote:
How can you tell it’s TPS?
imoto34 wrote:
It's not the thrttole senser.
??
kb228
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Mansfield, OH US
9/3/2018 5:02pm
Can also be a plugged injector as well. I was more or less saying my first suspect would be the tps. The constant vibration and shock can throw them off.
1
Tuna
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9/5/2018 5:52pm
Plug looks fine, doesn’t look lean.

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