As far as the Ricky stuff.  I just bought a 85 Tecate about 2 weeks ago.  I was told the stator was bad and the flywheel was missing.  I bought the Ricky flywheel for $125, there are no rivets either.  You can't even see the magnets.  The inside of the flywheel is smooth just like the outside.  And for the stator I bought the ignition winding only for $39 and soldered it in to the stock stator.  
And with people saying it increases power is very interesting.  Because this thing is INSANE.  My brother has a stock 85 which runs good but nothing like mine.  I was thinking mine must have a top end port job, I still don't think the stator and flywheel would make it run like this but who knows.  My brothers has the stock flywheel but he does have the ignition stator winding soldered in just like me.  I need an extended swing arm bad and this is the only bike that I've ever thought this about.
				
			 
			
		 
			
				
			
				
			
			
				08 Outlaw 525s
07 CRF70
04 Harley FLHRCI
04 TRX90
03 XR650R
03 400EX- XR650R engine
02 XR100R
01 Banshee
00 XR50R
00 XR70R
99 PW50
99 JR50
96,95 Sportsman 400
95 Xplorer 400
94 Indy XLT
87 Trail Boss
86,86,86,86,86 Scrambler
86 TRX70 x2
85 ATC350X
85,84 ATC250R
85 Red Tecate
85 LT50 x2
84 XR500R 
84,84,84,84,83,82,80,79 ATC70
82,79 XL500R
83 ALT50
79,78,77,77,76 XT/TT500
76,75,74 XL70
72,71,71,71 SL70
72 Harley FX
72,71,70,70,70,70,70 CT70H
72 SL100
70,69 Z50