Question about Coleman Sport 1850 Generator

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Coleman 1850 no/low generator output

My generator has been store for a few years, so i decided to try to start it. I had to clean the foat bowl and jet. after that, the engine started just fine. but did not seem to get up full speed, I cofirmed this by pluging a drill into it - the drill would only go half speed compared to house power. i try to play with the speed control at the carb and everything looks ok. now I have no gen output or maybe 12V at the 120 plug. don't know if blew something by running at low volt to hz ratio. two problems ? - any help?

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Both the Hz and the voltage will be wrong if the engine speed is low. You need to use either a DMM with a HZ function to set the engine speed so that you get 61.5 Hz at no load, or use a tachometer to set the no load speed to 3750 rpm.

Carl

Posted on Mar 01, 2009

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CarlGehrke
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SOURCE: coleman 1850 sport, no/ low generator output

Hi,
The engine should run at 3750 rpm at no load. If that's OK then you may need to troubleshoot the capacitor inside the end of the generator opposite the rope. Since the thing has been stored for some time you may just need to flash the field of the generator to restore the residual magnetism in the rotor. The easiest way to do this is thru the 110 outlet but it's a little dangerous. Plug an old lamp cord into the outlet, start the generator, and momentarily connect a 9 volt dry cell to the wires, then shut the generator down and see if there is 110 when you restart it.
Regards,
Carl

Posted on Feb 23, 2009

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Coleman 1850 sport, no/ low generator output


Hi,
The engine should run at 3750 rpm at no load. If that's OK then you may need to troubleshoot the capacitor inside the end of the generator opposite the rope. Since the thing has been stored for some time you may just need to flash the field of the generator to restore the residual magnetism in the rotor. The easiest way to do this is thru the 110 outlet but it's a little dangerous. Plug an old lamp cord into the outlet, start the generator, and momentarily connect a 9 volt dry cell to the wires, then shut the generator down and see if there is 110 when you restart it.
Regards,
Carl

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