Chickens XR600 Rebuild

[Geoff ForshawMember]

Oer the last couple of days i have just stripped Chickens spare engine ready for a complete overhaul. She is getting the full works. The spare engine has a 100mm Wiseco piston which increases the capacity to 628cc and a good ported large finned cylinder head which is being serviced. The cylinder is good and will receive a light hone then fitted with a new set of piston rings. Unfortunately the crankshaft has had a hit from a previous rebuild and may need replacing as it has 0.90mm of run out at the pimary gear end.
Gear box is reasonable with the main replacement items being the counter shaft and one selector fork as well as seals

Here are some initial pics.

More as it progresses.

Cheers,

Lefty

[Geoff ForshawMember]

Pics are on their way. :whistle: Operator error :unsure:

[GregMember]

for the leftone

TB

[Geoff ForshawMember]

I have finally got the parts for the XR630, so I have started on the rebuild today.

[attachment=3037]2011-12-07_09-54-48_420.jpg[/attachment]
Old superseeded Piston comparison to New Wiseco Piston note the shorter skirt (Lighter)

[attachment=3038]2011-12-07_09-53-57_294.jpg[/attachment]
New Piston 411gms

[attachment=3039]2011-12-07_09-53-29_391.jpg[/attachment]
Old Piston 448gms

[attachment=3040]2011-12-07_15-56-59_185.jpg[/attachment]
New Genuine Crank and Rod Assembly

I have also installed a new countershaft and RHS shift fork. A new clutch basket is goin in as well as a Goodridge Clutch Kit

It’s comming together nicely.

More later

Cheers,

Lefty

[Dwayne OMember]

Nice work Left One

She looks pretty good internally for an old girl :whistle:

Keep us updated as you progress mate

[BrettMember]

Thanks Lefty. Your making me keen as to get back into riding love some more photos, looks great.

[Geoff ForshawMember]

The completed Engine, just need to sort some wiring issues on the stator and then she is ready for installation.

[attachment=3043]2011-12-09_14-05-48_497.jpg[/attachment]
New Wiseco forged 100mm piston

[attachment=3044]2011-12-09_14-44-30_587.jpg[/attachment]
Installed in cylinder

[attachment=3045]2011-12-09_18-27-58_857.jpg[/attachment]
Ready for installation

[Dwayne OMember]

Getting close to launch now Lefty,,,

Is that Rally style witness marking I see ??? :laugh: Cool green

[Nick JacksonMember]

Great job and top quality pics lefty

I know where I’m going if I ever need engine work

Lefty your the man !!!

[scott bockingMember]

Nickj wrote:

Great job and top quality pics lefty

I know where I’m going if I ever need engine work

Lefty your the man !!!

Not before me

STM

[Geoff ForshawMember]

[attachment=3061]2011-12-14_18-04-25_231.jpg[/attachment]
Engine in! A few things to tidy up and then ready for Launch.
630 Power Here we come! :whistle: :woohoo:

[GregMember]

Don’t forget that preload on the back spring Lefty you backed off for the Hillend ride :laugh: :laugh:
Looking good, need be to come and kick start for you mate :huh: Can’t wait to have a ride on it eh having owned it before Chicken I am very interested to see the difference. I have the new oversize front disc here. I will do it when you have finished with it.

TB

[Cole CamptonMember]

keen to find an over sized disc for my xr600 can you help ?

[Geoff ForshawMember]

TB just got one for this bike, but i can’t remember where from. I am sure that he will let you know.

Cheers,
Lefty

[BrettMember]

Bought it from USA from Rockymountainatvmc.com about $200including caliper bracket plus freight.
That looks the part Lefty keen as

[Author]

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