Does anyone know the proper jetting for 6000 feet and above for my Sportfire? Taking it to get new crank seals today. Lots of oil coming out the exhaust pipe when running, so I want new jets in the carb also.
I guess I need:
Pilot jet
power jet
main jet,..... and what ever else you know that I need for high altitude.
Then this will be set back up on it's table. I start it once a month, just because.
Thanks
High Altitude jetting
High Altitude jetting
1st-1976 440 Cyclone: Owned 1979 then sold same year
2nd-1980 440 Sportfire: Owned 1982-1984 --Bought from uncle (220 miles)
3rd-1983 440 Liquifire: Owned 1983 and sold same year for profit (1000 miles)
4th-1981 440 Sportfire: Owned 2011 and still have (331 original miles until I put 3 on it, now 336)
5th- Still looking for
2nd-1980 440 Sportfire: Owned 1982-1984 --Bought from uncle (220 miles)
3rd-1983 440 Liquifire: Owned 1983 and sold same year for profit (1000 miles)
4th-1981 440 Sportfire: Owned 2011 and still have (331 original miles until I put 3 on it, now 336)
5th- Still looking for
-
JoeRainville
- Posts: 4355
- Joined: Tue Aug 02, 2005 12:00 am
- Real Name: "John Deere Joe"
- Location: Fort Worth, Texas
- Contact:
Re: High Altitude jetting
Ammon,
The owners manual and service manuals should have jetting info. I also think I have hi-alt kits for Sportfires up in NY, and I will be up there this weekend. I will check my manuals for the jetting info later tonight.
-Joe
The owners manual and service manuals should have jetting info. I also think I have hi-alt kits for Sportfires up in NY, and I will be up there this weekend. I will check my manuals for the jetting info later tonight.
-Joe
Honorary Tech Editor
Chuck Norris doesn't get frost bite. He bites the frost.
Chuck Norris doesn't get frost bite. He bites the frost.
Re: High Altitude jetting
YOU THE MAN!! 
I remember having a high altitude kit put in my 1980 Sportfire back in 1982. But I don't have a clue what was in the kit. I don't have any manuals for the Sportfire either. Lotta good help I is!!
I remember having a high altitude kit put in my 1980 Sportfire back in 1982. But I don't have a clue what was in the kit. I don't have any manuals for the Sportfire either. Lotta good help I is!!
1st-1976 440 Cyclone: Owned 1979 then sold same year
2nd-1980 440 Sportfire: Owned 1982-1984 --Bought from uncle (220 miles)
3rd-1983 440 Liquifire: Owned 1983 and sold same year for profit (1000 miles)
4th-1981 440 Sportfire: Owned 2011 and still have (331 original miles until I put 3 on it, now 336)
5th- Still looking for
2nd-1980 440 Sportfire: Owned 1982-1984 --Bought from uncle (220 miles)
3rd-1983 440 Liquifire: Owned 1983 and sold same year for profit (1000 miles)
4th-1981 440 Sportfire: Owned 2011 and still have (331 original miles until I put 3 on it, now 336)
5th- Still looking for
-
JoeRainville
- Posts: 4355
- Joined: Tue Aug 02, 2005 12:00 am
- Real Name: "John Deere Joe"
- Location: Fort Worth, Texas
- Contact:
Re: High Altitude jetting
Funny, but the operators manual said to see your local John Deere dealer for altitude above 4,000 feet. Guessing that would not be much help, so I checked the service manual. Above 6,000 feet it said:
Below 0, 180 Main
Above 0, 170 main, 170 power jet, 6F27-3 Jet Needle, 159-Q needle Jet, 3.0 throttle valve and a 25 pilot jet.
I do have an extra Sportfire service manual for sale, but you can buy all the manuals for that sled new from Deere still. $20 plus shipping if you want mine.
I hope this helps,
-Joe
Below 0, 180 Main
Above 0, 170 main, 170 power jet, 6F27-3 Jet Needle, 159-Q needle Jet, 3.0 throttle valve and a 25 pilot jet.
I do have an extra Sportfire service manual for sale, but you can buy all the manuals for that sled new from Deere still. $20 plus shipping if you want mine.
I hope this helps,
-Joe
Honorary Tech Editor
Chuck Norris doesn't get frost bite. He bites the frost.
Chuck Norris doesn't get frost bite. He bites the frost.