Two Stroke Motocross

Two Stroke Motocross Forum => Vintage Two Strokes => Topic started by: dean.lilley on August 23, 2014, 04:13:28 PM

Title: 1986 maico 320 barrel
Post by: dean.lilley on August 23, 2014, 04:13:28 PM
Just wondering if anyone knows if the 86 maico 320 has a plated barrel? Ive got one in bad condition and was wondering if i could put a iron liner in?
Title: 1986 maico 320 barrel
Post by: opfermanmotors on August 24, 2014, 02:42:33 AM
Maico didn't make a 320 in 1986.  Are you sure you don't mean 1996?  If so, yes, they're nikalsil.  If it's an actual 86 they are liners, but they didn't have a 320 in 86.
Title: 1986 maico 320 barrel
Post by: dean.lilley on August 24, 2014, 06:02:52 PM
Might be a mistake somewhere i will find a frame number but was quite sure it was an 86 in blue, watercooled 250 with big bore kit, disc brake front and back
Title: 1986 maico 320 barrel
Post by: opfermanmotors on August 25, 2014, 08:09:47 AM
The original 1986's were red, they turned to blue near the end but they remained blue until 1997.

They produced a 320 in the 90s, not sure the first year of the 320, but 86 was not.

However, all the parts are interchangable and the motors bolt up so a newer 320 engine could fit on an 86 frame and a 320 top end might work on a 250 bottom end provided if the crank needed changed it was also changed.


I would say though that you'd just have to look at the cylinder and determine it yourself.  At some point they switched to Nikasil like I said.  In 86 though, they did not Nikasil.
Title: 1986 maico 320 barrel
Post by: opfermanmotors on August 25, 2014, 08:11:14 AM
My 1996 Maico 440 is nikasil.   My 1986 500 is not and I had it resleeved.

Title: 1986 maico 320 barrel
Post by: opfermanmotors on August 25, 2014, 08:17:04 AM
Here's the 1986 Brochure.









They didn't have one in 1987 either.




However, the 1989 Brochure does list a 320.