Carb Jets Size(s) for 1FZ-F at around 7000'

[thebill]

Hello!
Much searching, few results. I need to rebuild and re-jet the carb on my 1FZ-F as it originally came from coastal Columbia and I live at around 7000'. I recall seeing in a few threads along the way, none of which I am recalling at the moment, where some folks were throwing out jet sizes for some carb tuning questions. Could anyone give me some insight as to where to start or which few sizes to order?
Tremendous thanks!

 

[mcmarshing]

Hello!
Much searching, few results. I need to rebuild and re-jet the carb on my 1FZ-F as it originally came from coastal Columbia and I live at around 7000'.

Do you have the 1FZ-F OE manual? I have it if you want me to send you the carb part of it. I myself am curious too since I frequently go through Utah/CO where the 1FZ-F struggles at grade to hit some of the 80mph speed limits. I did skim over the manual though, and it's a pretty busy carb that might be better to be adjusted and cleaned for the altitude with the stock jets. Plus, even if you add more fuel with bigger jets without the appropriate amount of air to match, I would imagine the engine would perform not as ideally. What kind of particular problems are you facing with it?

 

[thebill]

I tore the carb down today and the jets that are in there are 155/105. The ones that came in the Keyster kit I got from SOR are 215/150. I’ll need to order smaller jets than the 155/105. Any suggestions on what sizes to try to lean out the mixture?
Thanks!

 

[thebill]

I tore the carb down today and the jets that are in there are 155/105. The ones that came in the Keyster kit I got from SOR are 215/150. I’ll need to order smaller jets than the 155/105. Any suggestions on what sizes to try to lean out the mixture?
Thanks!

Turns out the main jets were installed in the incorrect spots. I corrected this during the overhaul and it’s running much better - far from perfect, but I think I may be able to drive it now