I've been thinking about putting a temp gauge in one of the coolant hoses just to get an idea when the bike is warmed up, if I'm running hot for any reason, kind of like just a safety thing. Just wondering what temperature do MX 250 two strokes operate at, and any suggestions on the idea.
Putting in an inline coolant temp gauge.
- Thread starter SoFlo
- Start date
Okiewan said:
The stick on types can only measure the skin temperature of the cylinder or radiator. Both of these surface temps are heavily influenced by external airflow, the boundary layer between the water in the jacket and the external surface, as well as external insulation from dirt. In other words the stickers won't tell you anything particularly useful as far as internal water temps are concerned.
Most two-strokes seem pretty happy with water temperatures in the 140-160F range, but there are a lot of variables to contend with so measuring water temp and testing will give you a better idea what the optimum temperature is.
Okiewan said:
You asked . :whoa:
rick82cr250
Member
- Aug 20, 2006
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I just installed one on my bike and I love it. Lets me know how lean or rich I need to be and if Im having any problems.
SKIDOOrider800
Member
- Apr 2, 2005
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yes, i would also like one. and perhaps a digital tach, egt, and hour meter.
any idea where i can find one?
any idea where i can find one?
- Aug 3, 2004
- 1,003
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As Okie walks out to his garage to peel off those trick new stick on engine thermometers...
I just put my gloved hand on the rad tank. When I can feel the heat, it is warm. BTW, how do you plan on checking this gauge while riding...without dying?
What's the average on 4t's? I'd guess much hotter. After all, nobody complains about their 2-strokes overheating in the woods...Rich Rohrich said:
I just put my gloved hand on the rad tank. When I can feel the heat, it is warm. BTW, how do you plan on checking this gauge while riding...without dying?
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Masterphil said:
A high performance four-stroke will make best power in the same general temperature range. Getting them to run at that temp with stock components is another matter entirely.
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rick82cr250
Member
- Aug 20, 2006
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I bought one from a local auto parts store, sunpro brand. Then went to a local hardware store for the fittings to install into the hose going into the rad from the head.
- Thread starter
- #16
Well what I'd be also using it for is maybe a situation where I'm trail riding and I pull up to a tree lean the bike against and take a quick break, it'd be good to have a temp gauge there just to look at, what would be the downside to that? Maybe a crack formed in the intake manifold, you're idling too much on a hot day, you forgot to put oil in your gas and your on borrowed time, stupid stuff like that, it wouldn't hurt to have a temp gauge. I'll go to the auto parts store to see if they have a small gauge I could pop on.
Unless anyone knows of any aftermarket see-through cylinders so I could really now what's up in there. ;)
Unless anyone knows of any aftermarket see-through cylinders so I could really now what's up in there. ;)
rick82cr250
Member
- Aug 20, 2006
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rickyd, no it doesnt stop the flow as long as you install an exstension for the probe part so it doesnt block the passage. I ran my bike today and it came in very handy. I had the bike too lean and got up to 210, adjusted the carb right there on the spot and it dropped to 190. I would have never know that without the gauge. And its not just to check to see if the motor is warmed up. 2 strokes run best when their at the proper temp. You can learn alot about these problems when you work on yous sons t-max for the last 2 years...