Mikuni carb jetting

[iceygears73]

I just picked up a 1980 440 liquifire. The guy said that he had cleaned out the carbs but I am finding out his idea of clean and mine are different! I could see right away that the jets were going to be an issue since the pilot was chewed up from trying to be removed. My question is, does anyone know the origial size of the pilot and main jets.? There are no numbers on these and I figure I'll just replace them all. Thanks.

[nick80lf]

See the following post.

http://www.jdsleds.com/community/viewto ... ize#p69971

The post doesn't mention that the inlet needle is a size 1.2 (aluminum tiped). Mikuni still makes a 1.2, most power sport dealers will tell you they can't get them and substitute a 1.5 (which will work). I purchased several 1.2 inlet needles this summer.

Nick

[nick80lf]

Also you can go to this site and download the service manual

http://www.vintagesnow.com/John_Deere.html

Nick

[iceygears73]

Thanks for the help, this is going to help alot. sled overall is ingood shape only 864 miles. I'll try to post some pics as soon as I can