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08-30-2013, 07:49 PM | #1 |
Join Date: Aug 2013
Posts: 4
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cooling fan not cycling and dead battery
I've got a 2008 roketa 250. The cooling fan come on and stays on. I did get it to cycle by spraying water mist on the radiator, so it appears to work.
The real problem is that I believe this is causing my battery to run down while riding. Then I get stranded when it won't start. The charging system appears to be working fine, checking with a new, fully charged battery. My trips are generally short, around town rides as I am not too confident about venturing out further. I haven't checked the thermostat yet or pulled the radiator to see if it is clogged. I did blow air through with a small nozzle on my air hose. Any ideas would be appreciated... |
08-30-2013, 11:05 PM | #2 |
Join Date: Jul 2011
Posts: 127
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Could be the sensor is bad or it is running hot . Is the factory coolant ? I would change it out if you have not already . I use Prestone premixed that says safe for aluminum . The motorcycle stuff like the pink or blue ( forgot brands ) is a fortune . Check the coolant level in the radiator and reservoir when cool . Some can get air in the hoses and need to be burped . Remove the radiator cap , start it up and let it idle until it gets good and warm . Squeeze the hoses and see if any coolant comes out of the radiator . Make take a few squeezes to get the air out of it if it has any .
How is the oil level and color ? If low or blackened change it out and see if it runs hot . Any mods like airfilter or exhaust ? One that runs lean will run hot . Do a plug chop and compare with this chart http://www.4secondsflat.com/plug_chart.html On my Echarm the cooling fan is powered by the stator instead of battery so if I shut off the engine while the fan is on it dies . I have done that and went to restart it and the fan had a draw that made me have to attempt to start 3 or 4 times instead of normal instant start . From then on if the fan is running I let it idle until it shuts down unless I will be parked long enough for it to cool down on its own . Does the temp gauge have numbers and does the fan come on around the same place on the gauge ? Make sure the radiaor vents are free of and debri and that they have not been bent or mashed . A hydrometer is a squeeze bulb tube with balls in it and you count the number that float when you use it to suck up a sample of your coolant in the radiator as it is impossible to eye and guess if its 50/50 |
08-31-2013, 10:15 PM | #3 |
Join Date: Aug 2013
Posts: 4
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Hey skuttadawg, thank you for the quick reply. I added some prestone 50/50 about a week ago to fill the radiator. I removed the radiator today to check for clogging, it was ok. So now I will have fresh coolant. When I drained the radiator it looked like clear water came out first, then a girgle and the the pink antifreeze came out. So maybe there was an air pocket.
I did a full tune up on the bike, which had some issues with the intake leaking. Changed the oil, new spark plug, etc... The old plug looked just a little dark, so it might have been running a little rich. There are no modifications to the bike. The temp gauge does not have numbers, however, it gets to just a little over half way when the fan comes on. It, too, stops running if I hit the kill switch to kill the motor. Does this bike have a thermostat? Couldn't find one on the Roketa web site or at any parts outlet. I will check that tomorrow. Still not sure why the battery is going dead. I will check the current draw when not running to see if any shorts. Any thoughts are appreciated... |
09-01-2013, 10:14 AM | #4 | |
Join Date: Aug 2011
Posts: 538
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Quote:
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09-02-2013, 09:04 AM | #6 |
Join Date: Aug 2011
Posts: 538
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I can't remember at this moment.
Follow the top radiator hose back to the engine and it should be there. |
09-02-2013, 03:16 PM | #7 |
Join Date: Aug 2013
Posts: 4
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hello scooterwayne,
Located and took out the thermostat,it appears to open up about 185-190 degrees farenheit. do you know of any online dealers that may have a replacement available? Thanks for your help with this matter.. |
09-02-2013, 05:34 PM | #8 |
Join Date: Aug 2011
Posts: 538
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PM sent. or you can ask our sponsor if they have one. http://www.scrappydogscooters.com/
Call, 702-689-6035 Last edited by Guest_3; 09-02-2013 at 06:10 PM. |
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