[Honda 250ex Rectifier!!!!] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

Pages:1

Honda 250ex Rectifier!!!!
(Click here to view the original thread with full colors/images)

Posted by: 250exkid

hey guys i was surfing on ebay and found this rectifier thing! now im not to sure what there suppose to do but i found a all new performance one for the 250ex up to the 400ex. its 50 and its suppose up you horse power by 7% here the link to the ebay link! http://cgi.ebay.com/ebaymotors/_W0Q...emZ130068445909

and if that didnt work heres the item number for the rectifier! 130068445909

so people please look at tell me what you think about it! thanks.

Posted by: m.h.s.c.#527

idk now i want one cuz i dont think its like a rev box

Posted by: 250exkid

im sry but i kinda dont get what you just said so do you want a rectifier thing and is it better for your machine then a rev box???

Posted by: m.h.s.c.#527

no i just wonder how dif. it is cuz my rev box changes the shifting curves

Posted by: 250exkid

yea and tell me what he tells you on what you asked!

Posted by: m.h.s.c.#527

ok

Posted by: Hotshoe18

The rectifier controles your charging system. If you unhook the rectifier, it desingages the charging magnets, therefore freeing up the engine. The box your looking at disingages the magnets when the battery dosent need to be fed a charge, then when it does, it will switch back on till its full again. I have mine unhooked and just charge the battery a few times a month.

Posted by: 250exkid

does it gain you power and can you explain it a little better? like does it cut your carging system so it doesnt charge your battery? so you have to charge it some times?

Posted by: m.h.s.c.#527

ok i c i think it is just a relay 4 the engine to feed the battery when needed i wouldnt unhook it but the rectifier would be good and all it is is taking the power that ur engine is feeding and puts it in to hp i doubt that much of a gain

Posted by: 250exkid

ahhh is it worth it you think? and you think it could mess up you computer or electricle stuff? i just dont wanna buy if its gonna kill my quade

Posted by: m.h.s.c.#527

yo 4 fifty bucks u can ge a better mod

Posted by: Hotshoe18

Ok, let me explain this. Theres 2 magnets in your engine. one on the flywheel and one above the flywheel. When the flywheel turns, It eventualy works its way towards the stationary magnet above the flywheel. When they pass, they send out a small electrical current which is sent through the rectifier, then into the battery. But you have to think for a second. If you have 2 magnets going past each other, thats going to make a tight spot in the engine cycle(when the 2 magnets pass). well, by unplugging the rectifier, It disingages those magnets. Now you dont have that tight spot, the engines running freer. I will tell you this for all of you doubting the significance of this simple little mod, if you will take the time to reach under the LR fender, unpluge the thing and go for a ride, you WILL notice a diffrence. It added a lot of torque to mine and when I hook it back up, it feels like I'm dragging a 25 pound weight behind me. I'v put an FMF and a K&N on and unplugged the rectifier and now when I jump on my friends stocker, it feels like im riding a 90. I also run microsprints which are powered by a 600cc, 4 cylinder streetbike engine. It states in all the tracks rules that unpluging the rectifier is strictly aginst the rules. Therefore, it MUST make some kind of a diffrence.

Posted by: 250exkid

cool

Posted by: m.h.s.c.#527

alright so once u unplug it can u replug it in to charge when u r not racing

Posted by: dman250

so this wont do any harm if u would say, ride everyother time with it on,
or do u just recharge ur battery every month

Posted by: 250exkid

yea im woundering the same thing

Posted by: ryanh250ex

it does make a difference. no BS here.

Posted by: 250exkid

ok sweet!. but in another thread a guy had problems with his YZF450 and he unpluge his thing and jumped his quade over with a car to start it and then his light bulbs blew out

Posted by: m.h.s.c.#527

i just unplugged mine and noticed nothing

Posted by: 250exkid

maby cuz you have everything else in it tthat your 250ex cant go any possibly faster! lOL but it doesnt hurt your quade???

Posted by: Hotshoe18

THIS MOD WILL NOT HURT YOUR QUAD! Its perfectly safe to do whenever you want. What I do is keep it unplugged until when I go to start it theres a reasonable lag in the starting system then I plug it in, ride for a day, and unplug it again. I notice most of my power on the bottom end when I unplug mine.

Posted by: stew2010

quote:
Originally posted by Hotshoe18
THIS MOD WILL NOT HURT YOUR QUAD! Its perfectly safe to do whenever you want. What I do is keep it unplugged until when I go to start it theres a reasonable lag in the starting system then I plug it in, ride for a day, and unplug it again. I notice most of my power on the bottom end when I unplug mine.

i just looked at this thread and was reading it..this sounds pretty sweet..but can you do this on a 250ex where is the plug oh and at the beggining of the thread it said it was $50 so do i have to buy a "rectifier" to do the mod??

Posted by: Hotshoe18

Its located inbetween the front of the LR fender and the frame. Its a little black thing with cooling fins on it. The thing for 50 dollars just electronicly does what you can physicly do by unplugging it. It monitors when the battery is full, then dissengages the magnets allowing the engine to free up. Then, when the battery runs low, it kicks the charging system back on until the battery is full and disengages again and so on and so on. you can do this yourself however. Reach under the fender and unplug the the wire running to the rectifier from the rectifier. Now, you have disengaged the 2 magnets that are used to charge the batter. When you notice a slower turn-over when you start it, reach underneath the fender again and plug it back in. One it acts normal again, unplug it. Its perfectly safe to do and I run mine unpluged all the time. I just throw a charger on it every so often.

Posted by: 250exkid

sweet!

Posted by: stew2010

sweeeeeetnessss

Posted by: 250exkid

what do you notice when you unplug it? just goes faster or what?

Posted by: 250exkid

what do you notice when you unplug it? just goes faster or what?
............. also is it like a screw you have to take off?? i couldnt find a plug except a screw with a wire going into the peice at the bottom? is that the right one to unscrew and and unplug? cuz i wanna try it soon!

Posted by: m.h.s.c.#527

no the rectifier is mounted to ur frme and plugged in but trust me it aint worth the trouble gettin to it

Posted by: 250exkid

ok but are u sure? ill be racing agaisnt another 250 and that wont help enuff to make me win??? and i no were the rectifier is its black in the left rear side with fins... but what if you take the screw holding a wire to it off is that how you turn it on and off???

Posted by: m.h.s.c.#527

it wont help and u unplug it with a big connection

Posted by: 250exkid

ohhhhhhhhh OK then i wont bother.... thanks