i had a 400 scrambler and i put a 500 ho in it and i am having wiring problems. is there a saperate wire that conects the rev/cdi box to the rest of the wiring harnes, i can't find one on ebay so i don't know if there is one. could somebody please check for me in theirs. maby a 400 or 500 sportaman would be the same. it is the black box with about a 6 prong clip on it. any help would be nice to hear, thanks jason

 

Hello Jason, how difficult was it to put the 500ho in your Scrambler?I was going to try it last year when i broke the 400.Did you have to change anything else?The frames look the same but have different part #'s.What year is your Scrambler?Any info would be great.Thanks...mike

 

mounting the motor was a piece of cake it boltes right in the frame. all you have to do us fabricate a top motormount. it is easey, all i did is cut a piece of angle iron that is 2" inches long and weld it to the frame. it took me about 5 minnutes at the most to do it. if you don't have a welder you can bolt it on.

if i had to do it again(500 motor swap) i would just buy a 500 scrambler. it would be so much easier to do. it would also cost less. there are tons of parts that i had to buy that i didn't know about. a few of them are, engine, carb, all cables, all clutches, clutch covers, shifter, oil tank, wire harness, cdi, rev,box, reverse speed limiter, motormounts, belt, fuel tank, fuel pump, starter silinoid, exhaust, and a few others. it would be easy of you had a wrecked 500 scrambler to take from, or an 500 sportsman (H.O for power)or even a ranger. if i hade one of those it would be a fun project.

the reason that it isn't finished it that i can't figure out the wiring up the cdi box to the rest of the harnes. hope this helps. Jason

 

was that your prarie or rincon in the pics, if so was mud nats worth it?

 

i have no clue whos those are. i saw the prarie go in the mun pit and it didn' to so well. there was to much floatation and it went only like 50 feet. the rincon can be seen at www.turnercycles.com

 

so you did switch over all the elctrical then I take it. can you get a pic im confused on what wire your talking about.

 

actually i don't know if there is a wire or not that i need. i found everything else that i need to make it run but the piece that connects the black box to the rest of the wiring harness. i have never seen anything for sale that connects the two together. the black box has a clip on it that has about 6 prongs inside it, it is supose to conect to the wiring harness some how. if somebody has or knows someone that has a 400 500 sportsman/ranger, or a 500 scrambler if they can find out how the CDI box connects to the rest of the harness. a picture would be helpful, but just decribing the part would be very helpful also to me. Thanks, Jason

 

a scrambler 400 has an old style 150 watt coil and a non-digital iginition. (no crank trigger) so the cdi box is a different unit you need a 500 cdi box and maybe coil as well.

 

ya i have all the 500 electrical stuff, CDI, ignition but i can't hook up the cdi box to the rest of the harness

 

If you have the 500 harness & 500 CDI box, there should be a plug for it in the harness. It may be hiding behind something --- when it's all wrapped in black loom or tape, it's easy to miss.

I've done a few harness swaps on sport bikes. It's usually the last one that's a bitch to find.