MountainMax
New member
Hey guys, on my 2002 Mountain Max 700 with no electric start or battery, is there anywhere with 12 volts DC or is it all AC?? I need a good 12 volt source for my NOS solonoid, i used a rectifier but i only end up with 9 volts with the solonoid activated...and i don't want to run a battery.....Maybe there is a bigger/better rectifier someone can recomend ??
yamaholic22
Active member
isn't it DC right out of the generator? I can't believe I dont know this...but for some reason i thought that these are DC straight out, not AC like cars...
FuzzButt
New member
Pretty sure it is all AC. It is quite possible the voltage srop is in the rectifer. A 1.5V drop is normal across each Diode. A better or different rectifer or one made for the application might be needed.
As far as the Car comment all the american cars for as far back as I can remember having altercators might make AC internally but have a rectifer bridge and voltage regulator built in.
As far as the Car comment all the american cars for as far back as I can remember having altercators might make AC internally but have a rectifer bridge and voltage regulator built in.
The lighting coil should produce up to a maximum of 14 DC volts. It will not at idle however, you have to get the rpms up...think about how your headlight gets brighter as you rev the motor.
MountainMax
New member
my headlight is fully bright at idle, the 2002 yamaha mmax had a new 300 watt lighting coil (AC) this year, the 2001's yeah the light was dull at idle, but not mine, and everywhere i check it all AC voltage at 13-14 volts, that's why i need a rectifier, only sleds with Electric start usually have DC voltage..... but I though someone told me there was a place on the sled with DC voltage somewhere for accessories........
While magnetos generate AC current a bridge rectifier can easily convert it to DC. The Yamaha 300 watt system is an 18-pole design that powers a DC CDI ignition system. There is a rectifier/regulator already connected to this ignition system.
Use the blue wire coming out of the load control relay (the one with the white plug). This should be regulated 12V DC current. You should be able to use 30 - 50 watts of power from this source without any adverse effect to the rest of the system. While this power is fairly clean, you can add a smoothing condenser such as the Viper has to clean it up more if needed.
Remember, blue is the magic color for power . . .
Use the blue wire coming out of the load control relay (the one with the white plug). This should be regulated 12V DC current. You should be able to use 30 - 50 watts of power from this source without any adverse effect to the rest of the system. While this power is fairly clean, you can add a smoothing condenser such as the Viper has to clean it up more if needed.
Remember, blue is the magic color for power . . .
MountainMax
New member
Thanks Ding, that's what i thought, i was told a blue wire but don't know where to connect to it, this would be awesome, it my fix my nitrous problems from using that dam cheap, small rectifier. Now, where is the load control relay?? thanks.......Rob
MountainMax
New member
Thanks Alot, I will find it now, someone told me this wire actually goes up to the steering column also, can you confirm this?? thanks.rob
You can usually tap into it along the top of the steering gate.