Planet Minis

z50r racer · 11-28-2009, 05:36 PM

So i took in a 1980 Z50R with a seized engine

and i tried to redo the original engine, it took a lot of marvels and hammering away to get that piston even close to loose. I decided to give up and try a new engine. I found this on ebay. z-50 z50 z 50 xr50 crf 50 engine motor Honda designe:eBay Motors (item 330380244680 end time Nov-30-09 20

51 PST)
It looks amazing! i made a plate to cover up the electric start to allow the use of my pro circuit t-4

but the other night, i decided to look at the wiring, and for the life of me, i cannot figure it out, nothing plugs in correctly! it has pretty much no harness, the new coil doesn't even reach the plug! HELP!!

HondaZrider · 11-28-2009, 07:34 PM

Quote:

Originally Posted by z50r racer

So i took in a 1980 Z50R with a seized engine

and i tried to redo the original engine, it took a lot of marvels and hammering away to get that piston even close to loose. I decided to give up and try a new engine. I found this on ebay. z-50 z50 z 50 xr50 crf 50 engine motor Honda designe:eBay Motors (item 330380244680 end time Nov-30-09 20

51 PST)
It looks amazing! i made a plate to cover up the electric start to allow the use of my pro circuit t-4

but the other night, i decided to look at the wiring, and for the life of me, i cannot figure it out, nothing plugs in correctly! it has pretty much no harness, the new coil doesn't even reach the plug! HELP!!

Im not sure if you already have the engine or are considering the one you linked to...I would recommend against that engine if you don't already have it.

z50r racer · 11-28-2009, 07:38 PM

Yeah i have it already, my father bought it as a gift. Do you know anything about it? Did you have it?

HondaZrider · 11-28-2009, 08:27 PM

There was no pic on the link. post a pic of the wires coming out of the engine and I can help you get it wired up.

z50r racer · 11-28-2009, 08:41 PM

Alright i will tomorrow! Thank you!

z50r racer · 11-29-2009, 01:35 PM

Alright so here are the pics of my electrical components and wires.
photo.jpg picture by scg5244 - Photobucket
photo_2.jpg picture by scg5244 - Photobucket
photo_3.jpg picture by scg5244 - Photobucket
photo_4.jpg picture by scg5244 - Photobucket
photo_5.jpg picture by scg5244 - Photobucket
photo_6.jpg picture by scg5244 - Photobucket

FastMC · 11-29-2009, 04:22 PM

So he didnt supply you with a wire harness to plug all that stuff into ?

z50r racer · 11-29-2009, 04:30 PM

None at all.

FastMC · 11-29-2009, 04:51 PM

Pretty typical I guess...

You're gonna have to go back to the seller and request the wire harness that works with that CDI box. Hooper imports can probably help you out, maybe even T-bolt or AHP. Your other option is to find a CRF50 wire harness and CDI box or Trailbikes CDI box. You will obviously have to mount the coil closer to the motor now also. Some of the China dealers sell a 12V coil with a long lead if you want to buy even more stuff and put it in the stock location.

FastMC · 11-29-2009, 04:53 PM

This thread may help you also.

CRF Import Wiring Guide

z50r racer · 11-29-2009, 05:03 PM

Would the stock Z50 coil work on it?

FastMC · 11-29-2009, 05:09 PM

Quote:

Originally Posted by z50r racer

Would the stock Z50 coil work on it?

No. You need the 12V CDI coil.

z50r racer · 11-29-2009, 05:13 PM

Alright, so i emailed Hooper imports, and he sent me this..Hooper Imports Experts on Chinese Motorcycles and Parts, Engines - Product Detail
but the more i look at it, none of my wires would match up to that, color wise...

FastMC · 11-29-2009, 05:23 PM

No matter what you get, nothing is gonna be plug and play....Welcome to the world of Chinese pitbike wiring !!!

That harness he linked will allow you to plug in the CDI box. You would have to cut off the other connector that comes on it and add your own bullet connectors to hook into the motor. See what your motor "dealer" has to offer. He may have one with the bullet connectors for the motor with the 5 pin for the CDI box.

z50r racer · 11-29-2009, 05:27 PM

Haha oh the fun. I am unaware of which wires i should cut and do what with

FastMC · 11-29-2009, 05:40 PM

Ok, on the last picture you posted. Out of those 6 wires coming from your motor, you only need 3 of them for your bike to run. The blk/red, the blu/wht and the solid green. The other 3 are for lighting and neutral light. You need to connect those 3 ignition wires into the harness (that you dont have). If you had the Hooper harness, you would have to cut one of the 5 pin connectors(the male) and splice in your motor outputs. you would then plug in your CDI box to the 5 pin female connector. Connect your coil to the BLK/yel and green wires. Connect your kill button to the blk/wht and green connector (or splice). Go riding.

z50r racer · 11-29-2009, 05:47 PM

So i cant connect anything until i get that harness. Damn. Thank you!

mexicanyella · 11-30-2009, 07:36 AM

I did notice the link mentions a two-speed transmission. I guess that's some specific variant for the little ATV it was intended for. That will be interesting; it might be fun like that, and if not it's not hard to find transmission parts to swap in around here. I'll be interested to hear how that works and how it's set up. So far I've seen some one-speed ATV variants but not a two-speed.

z50r racer · 11-30-2009, 03:37 PM

Yeah i can always swap to a stock honda tranny. im pumped to see how it works

mexicanyella · 11-30-2009, 03:50 PM

I would be interested in any details about that transmission if you end up opening it up. Take photos!

11-28-2009, 05:36 PM	#1 (permalink)
z50r racer PM Newbie Join Date: Nov 2009 Location: Medway Mass Posts: 58 My Mood:	Aftermarket Z50 motor. So i took in a 1980 Z50R with a seized engine and i tried to redo the original engine, it took a lot of marvels and hammering away to get that piston even close to loose. I decided to give up and try a new engine. I found this on ebay. z-50 z50 z 50 xr50 crf 50 engine motor Honda designe:eBay Motors (item 330380244680 end time Nov-30-09 2051 PST) It looks amazing! i made a plate to cover up the electric start to allow the use of my pro circuit t-4 but the other night, i decided to look at the wiring, and for the life of me, i cannot figure it out, nothing plugs in correctly! it has pretty much no harness, the new coil doesn't even reach the plug! HELP!!

11-28-2009, 07:38 PM	#3 (permalink)
z50r racer PM Newbie Join Date: Nov 2009 Location: Medway Mass Posts: 58 My Mood:	Re: Aftermarket Z50 motor. Yeah i have it already, my father bought it as a gift. Do you know anything about it? Did you have it?

11-28-2009, 08:27 PM	#4 (permalink)
HondaZrider 1st Gear Member Join Date: May 2008 Location: Los Angeles, CA Posts: 149	Re: Aftermarket Z50 motor. There was no pic on the link. post a pic of the wires coming out of the engine and I can help you get it wired up.

11-28-2009, 08:41 PM	#5 (permalink)
z50r racer PM Newbie Join Date: Nov 2009 Location: Medway Mass Posts: 58 My Mood:	Re: Aftermarket Z50 motor. Alright i will tomorrow! Thank you!

11-29-2009, 01:35 PM	#6 (permalink)
z50r racer PM Newbie Join Date: Nov 2009 Location: Medway Mass Posts: 58 My Mood:	Re: Aftermarket Z50 motor. Alright so here are the pics of my electrical components and wires. photo.jpg picture by scg5244 - Photobucket photo_2.jpg picture by scg5244 - Photobucket photo_3.jpg picture by scg5244 - Photobucket photo_4.jpg picture by scg5244 - Photobucket photo_5.jpg picture by scg5244 - Photobucket photo_6.jpg picture by scg5244 - Photobucket

11-29-2009, 04:22 PM	#7 (permalink)
FastMC Sporting the Merkin Join Date: Mar 2004 Location: boston area Posts: 5,235 My Mood:	Re: Aftermarket Z50 motor. So he didnt supply you with a wire harness to plug all that stuff into ?

11-29-2009, 04:30 PM	#8 (permalink)
z50r racer PM Newbie Join Date: Nov 2009 Location: Medway Mass Posts: 58 My Mood:	Re: Aftermarket Z50 motor. None at all.

11-29-2009, 04:51 PM	#9 (permalink)
FastMC Sporting the Merkin Join Date: Mar 2004 Location: boston area Posts: 5,235 My Mood:	Re: Aftermarket Z50 motor. Pretty typical I guess... You're gonna have to go back to the seller and request the wire harness that works with that CDI box. Hooper imports can probably help you out, maybe even T-bolt or AHP. Your other option is to find a CRF50 wire harness and CDI box or Trailbikes CDI box. You will obviously have to mount the coil closer to the motor now also. Some of the China dealers sell a 12V coil with a long lead if you want to buy even more stuff and put it in the stock location.

11-29-2009, 04:53 PM	#10 (permalink)
FastMC Sporting the Merkin Join Date: Mar 2004 Location: boston area Posts: 5,235 My Mood:	Re: Aftermarket Z50 motor. This thread may help you also. CRF Import Wiring Guide

11-29-2009, 05:03 PM	#11 (permalink)
z50r racer PM Newbie Join Date: Nov 2009 Location: Medway Mass Posts: 58 My Mood:	Re: Aftermarket Z50 motor. Would the stock Z50 coil work on it?

11-29-2009, 05:13 PM	#13 (permalink)
z50r racer PM Newbie Join Date: Nov 2009 Location: Medway Mass Posts: 58 My Mood:	Re: Aftermarket Z50 motor. Alright, so i emailed Hooper imports, and he sent me this..Hooper Imports Experts on Chinese Motorcycles and Parts, Engines - Product Detail but the more i look at it, none of my wires would match up to that, color wise...

11-29-2009, 05:23 PM	#14 (permalink)
FastMC Sporting the Merkin Join Date: Mar 2004 Location: boston area Posts: 5,235 My Mood:	Re: Aftermarket Z50 motor. No matter what you get, nothing is gonna be plug and play....Welcome to the world of Chinese pitbike wiring !!! That harness he linked will allow you to plug in the CDI box. You would have to cut off the other connector that comes on it and add your own bullet connectors to hook into the motor. See what your motor "dealer" has to offer. He may have one with the bullet connectors for the motor with the 5 pin for the CDI box.

11-29-2009, 05:27 PM	#15 (permalink)
z50r racer PM Newbie Join Date: Nov 2009 Location: Medway Mass Posts: 58 My Mood:	Re: Aftermarket Z50 motor. Haha oh the fun. I am unaware of which wires i should cut and do what with

11-29-2009, 05:40 PM	#16 (permalink)
FastMC Sporting the Merkin Join Date: Mar 2004 Location: boston area Posts: 5,235 My Mood:	Re: Aftermarket Z50 motor. Ok, on the last picture you posted. Out of those 6 wires coming from your motor, you only need 3 of them for your bike to run. The blk/red, the blu/wht and the solid green. The other 3 are for lighting and neutral light. You need to connect those 3 ignition wires into the harness (that you dont have). If you had the Hooper harness, you would have to cut one of the 5 pin connectors(the male) and splice in your motor outputs. you would then plug in your CDI box to the 5 pin female connector. Connect your coil to the BLK/yel and green wires. Connect your kill button to the blk/wht and green connector (or splice). Go riding.

11-29-2009, 05:47 PM	#17 (permalink)
z50r racer PM Newbie Join Date: Nov 2009 Location: Medway Mass Posts: 58 My Mood:	Re: Aftermarket Z50 motor. So i cant connect anything until i get that harness. Damn. Thank you!

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11-30-2009, 07:36 AM	#18 (permalink)
mexicanyella El rey de los puntos Join Date: Aug 2008 Location: Troy, MO Posts: 1,081	Re: Aftermarket Z50 motor. I did notice the link mentions a two-speed transmission. I guess that's some specific variant for the little ATV it was intended for. That will be interesting; it might be fun like that, and if not it's not hard to find transmission parts to swap in around here. I'll be interested to hear how that works and how it's set up. So far I've seen some one-speed ATV variants but not a two-speed.

11-30-2009, 03:37 PM	#19 (permalink)
z50r racer PM Newbie Join Date: Nov 2009 Location: Medway Mass Posts: 58 My Mood:	Re: Aftermarket Z50 motor. Yeah i can always swap to a stock honda tranny. im pumped to see how it works

11-30-2009, 03:50 PM	#20 (permalink)
mexicanyella El rey de los puntos Join Date: Aug 2008 Location: Troy, MO Posts: 1,081	Re: Aftermarket Z50 motor. I would be interested in any details about that transmission if you end up opening it up. Take photos!