Author Topic: Maico 490 barrell.. 81-82  (Read 2368 times)

0 Members and 1 Guest are viewing this topic.

Offline mxmaniac

  • Legend
  • *****
  • Posts: 687
    • View Profile
Maico 490 barrell.. 81-82
« on: November 01, 2010, 06:15:02 am »
gday, just wondering if the 81 490 barrell is the same as the 82? the ports looked bigger on the 82 at a quick glance?
Maico's, the only way to go.

Offline Husky500evo

  • Legend
  • *****
  • Posts: 870
    • View Profile
Re: Maico 490 barrell.. 81-82
« Reply #1 on: November 01, 2010, 08:04:24 pm »
I have '81 & '82 Maico 490 cylinders and the only difference that I could see, last time I looked , was that the '82 had 2 additional boost ports above the inlet port. I think that you you could cut these into the '81 cylinder if you wanted to . 

Offline mxmaniac

  • Legend
  • *****
  • Posts: 687
    • View Profile
Re: Maico 490 barrell.. 81-82
« Reply #2 on: November 01, 2010, 08:09:41 pm »
I have '81 & '82 Maico 490 cylinders and the only difference that I could see, last time I looked , was that the '82 had 2 additional boost ports above the inlet port. I think that you you could cut these into the '81 cylinder if you wanted to . 

many thanks husky!
Maico's, the only way to go.

Offline maicomc490t

  • Legend
  • *****
  • Posts: 551
    • View Profile
Re: Maico 490 barrell.. 81-82
« Reply #3 on: November 01, 2010, 10:32:59 pm »
What Brendan said plus the inlet spigot on the 82 is a larger diameter. The elbow can easily be removed by splitting it GENTLY with a sharp cold chisel just enough to expand the metal but make sure you have the opposite side sitting squarely on something solid (I use a hardwood block.
 
Never measured the port heights but some say the 82 port timing is better than the 81? The way I ride I wouldn't know, lol!

The spigot can be machined to std size or to save the hassles mount the carb using a length of radiator hose or similar.

Dave Mac  :)
VAPOUR (AKA HYDRA / HYDRO / AQUA / WET) BLASTING AND GENERAL ENGINEERING 0416074750 (or) [email protected]

DUCATI Parts wanted esp 450 R/T and other early models inc V-twins

BULTACO M49 parts wanted

Offline mxmaniac

  • Legend
  • *****
  • Posts: 687
    • View Profile
Re: Maico 490 barrell.. 81-82
« Reply #4 on: November 02, 2010, 10:05:45 am »
Thanks for the info fellas, It all helps 8)
Maico's, the only way to go.