Planet Minis

allmakesmx · 12-08-2006, 02:33 PM

Hello
Could I use a 1973 style cylinder and piston on a newer engine?
(panda jincheng) - with the Panda cylinder head?

Kurlon · 12-08-2006, 03:03 PM

Lots of variables there, how's a firm 'maybe' sound for an answer? : )

fatcaaat · 12-08-2006, 03:08 PM

Quote:

Originally Posted by allmakesmx

Hello
Could I use a 1973 style cylinder and piston on a newer engine?
(panda jincheng) - with the Panda cylinder head?

Cylinder...yes. Piston, maybe. Too many variables until you pull it apart.

Complete kits are $100 or less brand new. Best go that direction.

allmakesmx · 12-08-2006, 03:36 PM

I've got the Panda top end off; needs rings. 1973 motor has cracked cylinder head. Just want to get something together even if not permanent to quench my "first ride" desire!!! (corny, I know..)
Then I will restore/mod/etc....

allmakesmx · 12-09-2006, 05:18 AM

Well, at 6am I took apart the '73. Parts looked the same internally, then I busted one of the rings, so this plan is done for now. I'm hoping my friend may still have the stock 49cc Panda parts; but it's too early to call him!
I just want to ride one of these things to get it out of my system!!!

turboglenn · 12-09-2006, 05:56 PM

the jincheng panda motors are teh same as the pre 81 short rod motors... the cylenders will fit they are teh same height...

when i built the g/f's 04 jincheng motor i used a TB 88 kit made for the 81 and older motors and it worked out great, everything interchanges except teh camshaft, it has funky bearings on it... dratv has some of the interchange info if you look under their performance parts section

kit was 140 bucks and it runs like a dream ( light bore 88 )

allmakesmx · 12-10-2006, 06:51 AM

Thanks for the help, I have just started getting into these bikes and don't know the differences yet. My friend did have the stock cylinder & piston so I am going to install these for now. See attached pics for all the great stuff he gave me including a spare motor! Thanks again , Josh.

http://rides.webshots.com/photo/2140...89198137hBrXRX

http://rides.webshots.com/photo/2569...89198137MIRPNK

12-08-2006, 02:33 PM	#1 (permalink)
allmakesmx 2nd Gear Member Join Date: Dec 2006 Location: Massachusetts, USA Posts: 256	Cylinder interchange Hello Could I use a 1973 style cylinder and piston on a newer engine? (panda jincheng) - with the Panda cylinder head?

12-08-2006, 03:03 PM	#2 (permalink)
Kurlon Super Moderator Join Date: Feb 2005 Location: Windham, ME Posts: 8,301	Lots of variables there, how's a firm 'maybe' sound for an answer? : )

12-08-2006, 03:36 PM	#4 (permalink)
allmakesmx 2nd Gear Member Join Date: Dec 2006 Location: Massachusetts, USA Posts: 256	I've got the Panda top end off; needs rings. 1973 motor has cracked cylinder head. Just want to get something together even if not permanent to quench my "first ride" desire!!! (corny, I know..) Then I will restore/mod/etc....

12-09-2006, 05:18 AM	#5 (permalink)
allmakesmx 2nd Gear Member Join Date: Dec 2006 Location: Massachusetts, USA Posts: 256	Well, at 6am I took apart the '73. Parts looked the same internally, then I busted one of the rings, so this plan is done for now. I'm hoping my friend may still have the stock 49cc Panda parts; but it's too early to call him! I just want to ride one of these things to get it out of my system!!!

12-09-2006, 05:56 PM	#6 (permalink)
turboglenn 3rd Gear Member Join Date: Jul 2005 Location: Omaha, NE Posts: 1,941	the jincheng panda motors are teh same as the pre 81 short rod motors... the cylenders will fit they are teh same height... when i built the g/f's 04 jincheng motor i used a TB 88 kit made for the 81 and older motors and it worked out great, everything interchanges except teh camshaft, it has funky bearings on it... dratv has some of the interchange info if you look under their performance parts section kit was 140 bucks and it runs like a dream ( light bore 88 )

12-10-2006, 06:51 AM	#7 (permalink)
allmakesmx 2nd Gear Member Join Date: Dec 2006 Location: Massachusetts, USA Posts: 256	Thanks for the help, I have just started getting into these bikes and don't know the differences yet. My friend did have the stock cylinder & piston so I am going to install these for now. See attached pics for all the great stuff he gave me including a spare motor! Thanks again , Josh. http://rides.webshots.com/photo/2140...89198137hBrXRX http://rides.webshots.com/photo/2569...89198137MIRPNK

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