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post #1 of 7 Old 10-31-2019, 03:48 PM Thread Starter
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HF Predator Starting Question

I put a HF Predator on a Toro 721 single stage and the motor requires the choke on to start even after it's warmed up. Is this normal?
Thank you.

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post #2 of 7 Old 10-31-2019, 04:03 PM
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Not surprising. Everything is so leaned out to "comply". I've run into this scenario myself on my Sno Tek engine. Not a Predator but same symptom. Have had a couple of Tecs do it as well.

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post #3 of 7 Old 10-31-2019, 05:15 PM
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post #4 of 7 Old 10-31-2019, 06:51 PM
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Passing a number drill of the next greater size through the plot jet seems to work for me.
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post #5 of 7 Old 10-31-2019, 09:57 PM
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Well it's not "Normal"..... But very prevalent. +1 on the Re-Jet. I do it to almost all the carbs with fixed Jets. Immediate and very noticeable performance increase, as well as idle stability...... And No Choke after warm-up.

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post #6 of 7 Old 10-31-2019, 10:00 PM
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I drill the jets out to.034, and take the air cleaner element out, if you haven't done that yet.




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post #7 of 7 Old 11-01-2019, 01:07 AM
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HF Predator Starting Question

Just choke it a bit control the air not the fuel itís easier. EPA is very lean and seems some Chandaís run better with some choke almost like designed that way if your not suffering from power a little choke will work fine


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Last edited by groomerz; 11-01-2019 at 01:17 AM.
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