I just finally got my engine out of my 85 lt org everything all stock even stock bore but the swing arm is beat
**** in 5 spots carrier is so beat up won't even hold a barring there is a weld on the frame "looking into grabbing a yfz 450 frame for front clip" the weld is where the right a arm is good brakes good wheel bearings plastic is stitched only payed 250$ for the quad and the oil seals are bad so I took the head off tonight looked good except a brown like burn mark under the rings?
Maybe should I replace the rings?? Staring to polish the motor should have more pix soon
That piston looks pretty scorched. I would do a whole top end on it and replace the oil seals for starters. Dont forget to do a leak down test after its all back together. Cheap insurance, especially for an engine that has that much age on it.
If you stick with the original frame (weld and all), be sure to reinforce the upper shock mounts.
It's a very common place for the 85-86 frames to crack, right behind the shock mount...if you look close there might already be a crack starting there.
The simple solution is to run a bar or tube between the two shock mounts so they won't bow inward under load.
A YFZ450 front clip is pretty involved, be sure that's what you want to do and that you have all the tools needed beforehand.
Thanks I just got a ring Kit and will have to grab a piston Kit the head is now all polished but I still need a clutch removed tool ... I really want to do the frame clip because PC the better a arms as shocks ... Will I need to convert the steering stem to a 450 one or could I keep mine