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If it's working correctly, on a cold engine, turn on ignition, pull **** out fully, start. It holds the engine rpm higher (richer feed for carb) to get the engine to temperature. It should run about 2500-3000 rpm on start with this. It will automatically retract (ie turn off) once eng reaches operations temp (usually first 'mark' on temp dial). Usually 1-2 min. It is controlled thermostatically (off the water pump with a sensor), and is held in place magnetically. Once the temp is warm, the sensor shuts off power to the magnet in the choke **** assy and the choke retracts, and normal idle resumes.
You don't 'have' to use it at all, but some engines stumble and stall when cold, this helps prevent that. Also make cold starts easier as the engine should fire up pretty much right away, whereas with out it, a cold motor may require a lot more cranking to catch, and there is risk of flooding.
Old school but it works!
^^^That^^^. Same as using a lawn mower or weed eater. Modern fuel injected cars do it for you, but older carb'd cars all had choke from the factory. Odd thing about the 1st gen RX7's though, was that almost ALL other factory carbed vehicles of the time had automatic chokes (all Fords, GM's, Mopars, Honda, Datsun, Toyota, Subaru, VW, .... Everybody!). I always though it was funny that my 1985 car had the same engine starting tech as my weed eater. Friends would tease me about it. My '62 Chevy, '70 Opel and '71 Volvo had automatic chokes (no ****). In fact my FB's are the only cars I've EVER owned/driven with a choke **** from the factory.
Silly Mazda! Aren't they cute!
Last edited by Maxwedge; Aug 25, 2020 at 07:52 PM.
Dude, you need to ramp up on ICE engines in general. Based on the threads you have started, its clear you are needing to readup and learn about ICE technology and then rotary specifically of the Mazda kind. Good luck!
If it's working correctly, on a cold engine, turn on ignition, pull **** out fully, start. It holds the engine rpm higher (richer feed for carb) to get the engine to temperature. It should run about 2500-3000 rpm on start with this. It will automatically retract (ie turn off) once eng reaches operations temp (usually first 'mark' on temp dial). Usually 1-2 min. It is controlled thermostatically (off the water pump with a sensor), and is held in place magnetically. Once the temp is warm, the sensor shuts off power to the magnet in the choke **** assy and the choke retracts, and normal idle resumes.
You don't 'have' to use it at all, but some engines stumble and stall when cold, this helps prevent that. Also make cold starts easier as the engine should fire up pretty much right away, whereas with out it, a cold motor may require a lot more cranking to catch, and there is risk of flooding.
Old school but it works!
Stu A
80 GS (yep, with choke)
AZ
Thank you for the perfect explanation! I will now use it. I am still learning more about flooding and stuff because I still don'tt know what it is exacttly, but ill definitely be using the choke more so it doesn't stall because i noticed it stalled when i first started it.
Originally Posted by Maxwedge
^^^That^^^. Same as using a lawn mower or weed eater. Modern fuel injected cars do it for you, but older carb'd cars all had choke from the factory. Odd thing about the 1st gen RX7's though, was that almost ALL other factory carbed vehicles of the time had automatic chokes (all Fords, GM's, Mopars, Honda, Datsun, Toyota, Subaru, VW, .... Everybody!). I always though it was funny that my 1985 car had the same engine starting tech as my weed eater. Friends would tease me about it. My '62 Chevy, '70 Opel and '71 Volvo had automatic chokes (no ****). In fact my FB's are the only cars I've EVER owned/driven with a choke **** from the factory.
Silly Mazda! Aren't they cute!
Ahahaha, definitely mazda team had a good day when they thought of that idea. Now I know what it is, thank you!
Originally Posted by t_g_farrell
Dude, you need to ramp up on ICE engines in general. Based on the threads you have started, its clear you are needing to readup and learn about ICE technology and then rotary specifically of the Mazda kind. Good luck!
yes I do! trying hard to learn. thank you man
Well Zero you at least are smart enough to know "you don't know squat". Never a stupid question when it saves a first gen, if you ask me. But definitely hit the books on Wankel rotary engines, you're gonna need it. For what I don't know I scour the forums, what I do know I just do. Been working on an SA since high school and she is almost ready to go right after I bought an 80.
