So my first post/question is on High Altitude jetting.
I am restoring my 9/74 FJ40 that I bought after graduation from CU Boulder and went into the Navy. I had done a refresh in 1986 but was recked in 1991, but I kept it and have been restoring it after 15+ years of sitting idle. I live in Glenneagle, Co at 7000 ft
I have been researching threads and found one attributed to FJ40 Jim where jet line up as follows for 8000 ft:
114 primary
120 secondary
50&50 or 60 slow
60 power
My questions are:
1. Can I use two 55’s for slow jets? Installed were 55 and 80 and have only those in kits over the years. The 80’s are longer, does that make a difference, if I put a 55 in the secondary slow hole?
2. My factory manual says to use an 80 in the power valve. Has MUD experience shown the 60 in the power valve a better choice? Hence FJ40Jim’s recommendation?
I am restoring my 9/74 FJ40 that I bought after graduation from CU Boulder and went into the Navy. I had done a refresh in 1986 but was recked in 1991, but I kept it and have been restoring it after 15+ years of sitting idle. I live in Glenneagle, Co at 7000 ft
I have been researching threads and found one attributed to FJ40 Jim where jet line up as follows for 8000 ft:
114 primary
120 secondary
50&50 or 60 slow
60 power
My questions are:
1. Can I use two 55’s for slow jets? Installed were 55 and 80 and have only those in kits over the years. The 80’s are longer, does that make a difference, if I put a 55 in the secondary slow hole?
2. My factory manual says to use an 80 in the power valve. Has MUD experience shown the 60 in the power valve a better choice? Hence FJ40Jim’s recommendation?