84 KX500

[3858]

Just started today;

Hard bits so far;

Rear brake arm on back plate, dowel, spring and wing nut (mostly the arm)
Piston advise and/or original single ring

Any other bits surplus to your needs???

Thanks .... 

[Stevo17]

I have a new rear brake cam part #41050-1027 if that is one of the parts you need.

[3858]

Hey thanks for that...

The actual part is 41053-1034 and is the brake arm.

I have seen it on the CMSNL site? Has anyone had luck with them... I have never tried?

[BAHNZY]

Have you dropped the barrell of yet?
If so have you confirmed what you have? Is it on the standard bore? has it been sleeved? (which is not unusual) From there we can assist and give you some options on what to do. There are quiet a few forum members that have 83/84 air cooled KX5's and have been through the process of rebuilding them. As long as the gearbox is good, the rest is pretty easy, but not cheap!

What condition is the kick starter mechanism in? This was a weak point on this motor but can be overcome, albeit with money 

[GMC]

Were you talking about the brake arm on the backing plate or the torque arm earlier?

The actual part is 41053-1034 and is the brake arm.

Part # = 41053-1034
Part Description = BRAKE CAM LEVER,REAR
Model Count = 6
KX250-C1 83 250 KX250 MOTOCROSS
KX250-C2 84 250 KX250 MOTOCROSS
KX250-D1 85 250 KX250 MOTOCROSS
KX500-A1 83 500 KX500 MOTOCROSS
KX500-A2 84 500 KX500 MOTOCROSS
KX500-B1 85 500 KX500 MOTOCROSS

[3858]

Hey thanks for the interest;

The barrel is original plating with an original piston and a worn ring.. Plans are to fit a new ring if the barrel checks out or bore and plate to .25 with a Rocky Cycle piston.  Not sure on the Piston quality maybe you could advise.

The kicker is great and clutch/gears seem fine.  The mains are gone so I have to strip for that as a minimum....fingers crossed on the way in?

GMC is working right now on the pipe and silencer..everything is pretty good after a solid day!!!  

One other thing ..are the Hotfootmoto sliders any good...I know they are the wrong colour..  I have the manifold in hold at DC as well.

Thanks again for the help  

Just seen your message GMC ...tourque arm was the convo with you today but I also need the backing plate arm for the rear brakes....

[BAHNZY]

The barrel is original plating with an original piston and a worn ring.. Plans are to fit a new ring if the barrel checks out or bore and plate to .25.

The mains are gone so I have to strip for that.

You can use a late model piston, just drop the bottom ring off. Unless your going to contest a title event, a single ring piston will be more than o/k. If you don't have to bore it then don't. Another issue you need to pay attention to is the fitting of the mains into the cases. Check to see if they have been spinning in the case.