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25 replies to this topic
  • supasupa

Posted January 24, 2014 - 02:55 PM

#1

What's up people I'm new here and figured a little intro would be best before asking questions. Anyways I've been riding a wr426 supermoto for the past couple years when it recently blew up. I'm here right now to ask if anyone knows if there is a motor from a different bike that will bolt directly in (maybe the wr450?). I've been searching the past could days and have had no luck anywhere so any help would be appreciated. thanks

 

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  • Krannie McKranface

Posted January 25, 2014 - 06:46 AM

#2

Pretty sure the '03-'06 WR450F motor is a direct fit.

 

Some one else will chime in with a real answer.



  • stevethe

Posted January 25, 2014 - 07:34 AM

#3

Maybe you could see what went poof and see if a rebuild might work.

 

You could always check in with the supermoto junkie fourm also.



  • beezer

Posted January 25, 2014 - 11:03 AM

#4

You get 1 atta boy for the nice stoppie and I kick in the asz for no jacket and sneakers.



  • Krannie McKranface

Posted January 25, 2014 - 01:21 PM

#5

^^ ditto



  • grayracer513

Posted January 25, 2014 - 08:33 PM

#6

I think that the Gen1 450 ('03-'06 WR450 or '03-'05 YZ450) will in fact fit. The YZ450 in those years was a four speed, though. You can change that, but that requires a whole trans from a WR.

The two critical points are the rear and lower hard points. The front and top mounts are much easier to modify if needed.

It's a big nuisance if the lowers don't line up, but the rear has steel inserts that can be removed and swapped or modified if the swing arm pivot is different.

  • DunmireD001

Posted January 29, 2014 - 01:07 AM

#7

What's up people I'm new here and figured a little intro would be best before asking questions. Anyways I've been riding a wr426 supermoto for the past couple years when it recently blew up. I'm here right now to ask if anyone knows if there is a motor from a different bike that will bolt directly in (maybe the wr450?). I've been searching the past could days and have had no luck anywhere so any help would be appreciated. thanks

1238182_575324725864725_996698159_n_zps0
983765_529158460481352_860044372_n_zpsfd


This is a little off topic, but do you have an idea of how many miles you got out of your 426 motor??? Or what may have caused it to go bang??
I only ask bc I'm looking to supermoto my wr426 in the near future. Yours is the first I've heard of the actual engine failing, but then again there aren't a lot of 426's supermoto'd

  • supasupa

Posted January 29, 2014 - 10:18 AM

#8

Maybe you could see what went poof and see if a rebuild might work.

 

You could always check in with the supermoto junkie fourm also.

I might end of doing that. I didn't realize new motors where so damn expensive.

 

I think that the Gen1 450 ('03-'06 WR450 or '03-'05 YZ450) will in fact fit. The YZ450 in those years was a four speed, though. You can change that, but that requires a whole trans from a WR.

The two critical points are the rear and lower hard points. The front and top mounts are much easier to modify if needed.

It's a big nuisance if the lowers don't line up, but the rear has steel inserts that can be removed and swapped or modified if the swing arm pivot is different.

Thanks I'll keep that into consideration.

 

This is a little off topic, but do you have an idea of how many miles you got out of your 426 motor??? Or what may have caused it to go bang??
I only ask bc I'm looking to supermoto my wr426 in the near future. Yours is the first I've heard of the actual engine failing, but then again there aren't a lot of 426's supermoto'd

near 15k god knows how many it had before the trail tech unit was installed by the previous owner though.



  • DunmireD001

Posted January 29, 2014 - 12:03 PM

#9



near 15k god knows how many it had before the trail tech unit was installed by the previous owner though.[/quote]

Ok good. I know mine has low hours because it's been in a garage barely ridden for the 1st 6 years of its life. Paint isn't even worn off of the subframe next to the foot pegs. So I figure mine shouldn't have over 2k miles on it.

  • supasupa

Posted January 29, 2014 - 11:37 PM

#10

near 15k god knows how many it had before the trail tech unit was installed by the previous owner though.[/quote]

Ok good. I know mine has low hours because it's been in a garage barely ridden for the 1st 6 years of its life. Paint isn't even worn off of the subframe next to the foot pegs. So I figure mine shouldn't have over 2k miles on it.

You'll be good for a while.



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  • stevethe

Posted January 30, 2014 - 08:12 AM

#11

near 15k god knows how many it had before the trail tech unit was installed by the previous owner though.[/quote]

Ok good. I know mine has low hours because it's been in a garage barely ridden for the 1st 6 years of its life. Paint isn't even worn off of the subframe next to the foot pegs. So I figure mine shouldn't have over 2k miles on it.

 

Don't even think 15,000 is that many miles for a Wr on the street. 2K is barley broke in.



  • DunmireD001

Posted January 30, 2014 - 12:08 PM

#12

I don't... I'd like to try to get mine to see 30k honestly... I know It could do it if I took the time and money to build it right. Plus my ride to work is about 3 miles one way at 45mph the whole way, so my daily riding won't put any stress on that engine...
Things I want to do to it are:
Upgrade the water pump impeller
Get bigger radiators. (To keep the bike running cooler)
Possibly hook up radiator fans if the bike still likes to run hot.
Hook up a 12v battery and use that as the core to my lighting/ speedo.
Get 17" supermoto wheels wrapped in Michelin pilot powers.
Get a new exhaust. And supermoto handlebars.

I figure once I do all that it will ride really nice and be a comfy ride... After I do all that it will just be a matter of keeping the oil and air filter serviced, and keeping my valves adjusted.

  • supasupa

Posted February 15, 2014 - 01:57 AM

#13

So instead of tearing the motor apart I decided to buy a donor bike to get my supermoto back on the road asap. I picked up a really nice yz426 from the origional owner it has really low hours on it and I got it dirt cheap. So tomorrow I'm going to be swapping my stator and flywheel over and throwing it in. wish me luck  :) IMG_5614_zpsyvzopz96.jpg



  • supasupa

Posted February 15, 2014 - 05:58 PM

#14

Great, so I just found that the singarm/rear motor mount bolt on the 2000 yz426 is smaller then the one the 2002 wr426 has. My wr426 bolt wont fit threw the yz426.

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Edited by supasupa, February 15, 2014 - 05:58 PM.


  • supasupa

Posted February 15, 2014 - 06:05 PM

#15

So what I think is going to have to be done is mill 1mm off of the outside of the spacers that are pressed in the wr426 motor to allow them to fit in the yz426. and to be able to use the yz426 motor in the wr426.

 

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The short fat ones are from the wr426 and the tall ones are from the yz426

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  • supasupa

Posted February 16, 2014 - 07:59 PM

#16

well my idea worked and I got it in. I swapped in the yz shock because it was stiffer also swapped the seat and tank. what do you guys think?IMG_20140216_073211_zpscmokpv9l.jpg



  • flyandride

Posted February 16, 2014 - 08:51 PM

#17

You tell us what you think once you've ridden it.  The WR has a wide ratio trans, the YZ a close ratio.  Could be a deal breaker. 



  • supasupa

Posted February 16, 2014 - 09:04 PM

#18

I took it around the block the bike seems alot faster with this motor. You're right about the transmission I did find myself shifiting alot sooner. That doesn't bother me much though I think it will work good on my part because I'm going to be at the supermoto track alot this summer.


Edited by supasupa, February 16, 2014 - 09:04 PM.


  • DunmireD001

Posted February 17, 2014 - 03:15 AM

#19

That's bad4ss man! U know where one could find a graphics kit like that?

  • supasupa

Posted February 17, 2014 - 02:36 PM

#20

That's bad4ss man! U know where one could find a graphics kit like that?

 

eBay? lol I don't know they came with the parts bike.






 
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