Author Topic: Another Wr500 being fully rebuilt  (Read 599 times)

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Offline 750sp

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Another Wr500 being fully rebuilt
« on: December 31, 2018, 06:29:22 PM »
I have just been watching this site for a few months now and have bought 1992 WR500, had one back in the mid 90's great machine to ride.

In the process of fully rebuilding and since I have started  everything is getting done expect for wheel bearings at the moment as they seem to be the only thing that is any good on it.

Hope to have it running by Feb 2019 all going well.

Photos of it when I picked it up once it was at home it was in pieces within the hour!

Offline Martin I Henry

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Re: Another Wr500 being fully rebuilt
« Reply #1 on: December 31, 2018, 06:51:36 PM »
Welcome to the forum 750sp.

Another WR500 saved !

Cheers,

Dave R.

Offline storie585

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Re: Another Wr500 being fully rebuilt
« Reply #2 on: January 01, 2019, 12:47:14 AM »
I had to make one out of a 250.... doesn?t seem quite fair..  ;D
Dave

Offline storie585

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Re: Another Wr500 being fully rebuilt
« Reply #3 on: January 01, 2019, 12:52:33 AM »
If you would like my two cents... do the decompression head mod and find a good YZ 426f kickstarter.. you have to shave a little aluminum off the kickstarter around the knuckle so it doesn?t rub on the case. Well worth the effort. Way easier to start once you learn the drill. Takes 40% of the effort out of starting it and it will save your cases..
Dave

Offline sweede490

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Re: Another Wr500 being fully rebuilt
« Reply #4 on: January 01, 2019, 09:57:23 AM »

 Welcome to the forum 750 , the WR500 is a cool bike and always good to see old bikes brought back

    To life





    Muzz

Offline wayne61

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Re: Another Wr500 being fully rebuilt
« Reply #5 on: January 03, 2019, 01:14:36 AM »
Nice.
They do come apart quickly don't they  ;D
Go soothingly on the grease mud, as there lurks the skid demon.

GRIP AND RIP CRAIG AND CHRISSO!!!

Offline 750sp

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Re: Another Wr500 being fully rebuilt
« Reply #6 on: January 04, 2019, 08:38:10 PM »
Picked up the barrel today after its re bore out to 88mm that make it nearly a true 500 at 499cc. The head also got a polish up and I do have my eye on a second head which has already had the mods done to it.

When the motor was stripped down we found the clutch basket had a broken tooth, stripped nut on the primary drive cog, and the motor had been blown up before as there was a  piece of piston wedged into the oil gap on the bottom of the conrod? I made the right decision not to even attempt to start it as that could have caused the engine to self distruct !

I was going to order a Lectron carb before Xmas but when we found all the broken parts that has gone on hold for a while. Have a read of this blog and it was pretty interesting to see how he rated the Lectron on the WR500 :) note lectron info starts P4 of the blog if you want to skip to there.


http://www.cafehusky.com/threads/beast-mode-wr500-yamaha.79567/

Offline storie585

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Re: Another Wr500 being fully rebuilt
« Reply #7 on: January 05, 2019, 02:09:48 AM »
Yep.. good call. Time bomb
Dave

Offline sweede490

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Re: Another Wr500 being fully rebuilt
« Reply #8 on: January 05, 2019, 04:58:44 AM »


    Good call on the engine, these bikes are a great all round dirt bike , shame it?s not actually a true   
    WR in that they don?t actually have a wide ratio gearbox .. if my motor ever needed splitting I?d
    Seriously consider putting in a IT490 gearset , still not complaining tho  ;) I?m on my 5th one







  Muzz



   





Offline 750sp

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Re: Another Wr500 being fully rebuilt
« Reply #9 on: January 13, 2019, 07:18:56 PM »
The suspension arrived back this week after it was fully serviced and had gold valves put in and new spring front and rear to suit my weight.
 The Swingarm and rear wheel are all fully reinstalled and the swingarm got all new moose linkage bearings. The others fell out in pieces! never seen that happen before.

Front forks are not installed yet as there was a few washers missing in the steering head set I am still waiting to arrive before installing.

  :)