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Old October 18th, 2016, 11:49 PM   #1
knivee14
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Hi guys. A noob question

Hi' My name is Kevin and I just recently bought a ninja 250 for my first bike. I decided to mod it to make it look amazing. I purchased koso rx2, and I am installing it on my bike. I have a question though. Do I need to flush and replace my coolant when installing the coolant temp sensor or I can just go right away and install it without draining coolant? Please answer.

Hope you guys have a good day cheers
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Old October 19th, 2016, 04:40 AM   #2
JohnnyBravo
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Welcome to the forum... Sadly idk whet the sensor is, so I can't say, someone should chime in shortly though
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Old October 19th, 2016, 05:22 AM   #3
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No need to flush... but do you know how long ago the coolant was changed? Can't hurt and you might as well.
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Old October 19th, 2016, 07:28 AM   #4
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Originally Posted by adouglas View Post
No need to flush... but do you know how long ago the coolant was changed? Can't hurt and you might as well.
What he said. For best results, go through the maintenance schedule and do anything that you can't prove has already been done. This will ensure that the bike performs as designed, and lasts as long as it should.

Surprise hardware problems while riding can really suck, even to the point of being fatal. Don't skimp on upkeep.
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Old October 19th, 2016, 08:22 AM   #5
jkv45
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Quote:
Originally Posted by knivee14 View Post
Hi' My name is Kevin and I just recently bought a ninja 250 for my first bike. I decided to mod it to make it look amazing. I purchased koso rx2, and I am installing it on my bike. I have a question though. Do I need to flush and replace my coolant when installing the coolant temp sensor or I can just go right away and install it without draining coolant? Please answer.

Hope you guys have a good day cheers
Pretty sure the Koso sensor is placed inline in a radiator hose, so you'll want to drain the coolant before installing it.

You aren't dealing with a large amount, so just go ahead and replace the coolant since it's already out. Drain the overflow bottle and refill as well.

Getting all of the air out of the system can take some doing, so read-up on the procedure so you know what to do to get it filled properly - http://faq.ninja250.org/wiki/How_do_...ling_system%3F
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Old October 19th, 2016, 10:20 AM   #6
CaliGrrl
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Old October 19th, 2016, 10:52 AM   #7
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just replace the sensor, but flushing the cooling system may not be a bad idea just to update the service.
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