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Thread: CR500 Might be better than CR250 Digital Ignition 100 Watts for Lighting DC or AC

  1. #1
    Member Bananas's Avatar
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    CR500 Might be better than CR250 Digital Ignition 100 Watts for Lighting DC or AC

    It worked!!!!! Starting was easier than using CR250 2001 digital ignition, rpm's were better on idling. and the power was very smooth. I was very happy to see that it work great. Only tested for about 30 minutes at home because their is no where to ride near my house. I was running a ESR 350 Power value on Race Gas... I took it out of this quad and it will be going into an ESR 400 Power Value on a new build I am working on. I only thing I had to do was to grind down an adapter plate that ESR makes. it has a ridge that is on the adapter plate for the CR250. ESR knows I was testing this and they might come up with a new plate.
    PLUS 100 WATTS for lighting AC or DC!!!!!!


    Ignitions - ServiceHonda.com


    Troy
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  2. #2
    Senior Member chris-sellars's Avatar
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    what year cr500 did ya use is digital same as 01 cr250

  3. #3
    Senior Member motofool250r's Avatar
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    im curious the ignition curve im betting the curve is much lower timing then the cr250
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  4. #4
    Banned jcs003's Avatar
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    like motofool said!

    how would it work on a stock cylinder?

    whats flywheel weight and dimensions in comparison?

    i bet rss has some info on this. he knows alot about ignition timing and curves.

  5. #5
    Member Bananas's Avatar
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    It was made for a 1984-2013 CR500, Service Honda try it in a CR250 and it work great. So after talking to their Tech guys, I bought it and tried it and it worked too. Service Honda has been selling it for the CR500 for about a year if I remember. They are trying it on more bikes too now to see how they work with it too. For all the information I have it will work on a Stock Cylinder too. I bought it with the idea if it didn't work I could send back... They told me just Don't cut anything or modify it and I could send back for credit.... I was running the CR250 before and you will see a difference. Once I get my build done I will fully test it....

  6. #6
    Supporting Vendor acecarlos's Avatar
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    Quote Originally Posted by Bananas View Post
    It was made for a 1984-2013 CR500, Service Honda try it in a CR250 and it work great. So after talking to their Tech guys, I bought it and tried it and it worked too. Service Honda has been selling it for the CR500 for about a year if I remember. They are trying it on more bikes too now to see how they work with it too. For all the information I have it will work on a Stock Cylinder too. I bought it with the idea if it didn't work I could send back... They told me just Don't cut anything or modify it and I could send back for credit.... I was running the CR250 before and you will see a difference. Once I get my build done I will fully test it....
    Not better, just different. The OEM CR500R IGNs from 1984 up are all different, not the same. The earlier CR500R IGN's had a higher initial timing at higher RPM's than some of the later models. Compared to a 2001 CR250R OEM IGN, the Honda OEM CR500R IGN is different, as a quick example; the 2001 CR250R IGN has 20 degrees/1450 RPM's, maintains 20 degrees up to almost 5000 RPM's, drops off to 11.9 degrees/8500 RPMs verses the 2001 CR500R has 31 degrees/1250 RPM's, maintains 31 degrees up to almost 3300 RPM's, drops off to 12.8 degrees/8000 RPMs.

    The better IGN is the CR250R version for the smaller cylinders and BB's...since our BB 's like more advance timing at the higher RPM's.

    The next best IGN for the 250R is the 2003 CR250R with special mods & adapter plates. We have used these and will amke them available if the 2001's are no longer being made.

    PS: this unit from Service is an aftermarket system, if it was designed for the CR500R, then it may work great for the CR500R, and not as good for the 250CC engines...kind of impossible to have an Ignition system that is optimal for a 500CC Honda Torque monster and a 250CC Honda Higher reving engine at the same time.

    Carlos
    Last edited by acecarlos; 03-18-2013 at 12:09 PM.
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  7. #7
    Member Bananas's Avatar
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    Most of us using cr250 ing to make to easy to start our big motors, I am tell you that the cr500 ing is even made it easier!!!
    I was kicking half the amount I would need to kick my cr250 ing. I was shocked how easy it was. My 94 pound daughter kick it with shoeson!! With one kick, yes it was warm......

  8. #8
    Member mfr422's Avatar
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    Bananas,
    Is it possible to mate the 2 ignitions together, I want the cr250 ignition but don't want to give up my lights, is it possible to use the cr250 ignition box? how different are the plugs? just curious. My buddy recently bought the 250 setup for his 330 woods weapon and he's already added a flywheel weight to it and wants more weight.
    If possible could you weigh the flywheel? I would like to know how it compares to stock. Thanks, Lonny

  9. #9
    Member Bananas's Avatar
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    Flywheel is 22.65 oz.. CDI's are different You might want to call Jeff at Service Honda... Lights are big that's why I got in touch with Service Honda in the first place.
    These big motors need a Digital Ignitions for sure!!!!!!!!!!!!

    Troy

  10. #10
    Senior Member motofool250r's Avatar
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    for people that want lights on their cr ignitions without buying new cdi changing their timing curve and such see my latest post in my forum section i have a 150watt stator that we are working on.
    463cc Super Puma Caged in a LSR Ti Chassis
    443cc Puma by Hybrid Engineering
    344cc ESR By Hybrid Engineering
    353cc ProX by Hybrid Engineering


 

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