What kind of RPM does your motor or motors idle at?
11-26-2014, 07:48 PM
#11
Hi Billy Boats,
Thanks for your suggestion on idle. Wow, I am hearing a lot of variation on idle, I thought it would just stall at 600 rps's, but I will try it out today and see.
I will try adjusting the idle lower and see how it behaves.
Also my throttles retract automatically to idle unless I keep my hands on the throttles. No hands free cruising here.
I assume this retracting throttle is a typical true race boat application.
Thanks for your suggestion on idle. Wow, I am hearing a lot of variation on idle, I thought it would just stall at 600 rps's, but I will try it out today and see.
I will try adjusting the idle lower and see how it behaves.
Also my throttles retract automatically to idle unless I keep my hands on the throttles. No hands free cruising here.
I assume this retracting throttle is a typical true race boat application.
11-26-2014, 09:48 PM
#12
Platinum Member
Hi Billy Boats,
Thanks for your suggestion on idle. Wow, I am hearing a lot of variation on idle, I thought it would just stall at 600 rps's, but I will try it out today and see.
I will try adjusting the idle lower and see how it behaves.
Also my throttles retract automatically to idle unless I keep my hands on the throttles. No hands free cruising here.
I assume this retracting throttle is a typical true race boat application.
Thanks for your suggestion on idle. Wow, I am hearing a lot of variation on idle, I thought it would just stall at 600 rps's, but I will try it out today and see.
I will try adjusting the idle lower and see how it behaves.
Also my throttles retract automatically to idle unless I keep my hands on the throttles. No hands free cruising here.
I assume this retracting throttle is a typical true race boat application.
Do you have the stock ignition modules? Or the six cylinder ones? 6cyl ones will idle better with more base timing.
Last edited by 14 apache; 11-27-2014 at 05:33 PM.
11-27-2014, 09:04 PM
#14
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11-27-2014, 09:11 PM
#15
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Yes, it has return springs on the carbs, I thought about removing the springs though I am used to it now over time. It does make slow speed maneuvering easier, don't need to worry about the throttles being anywhere if you are in a sudden maneuver..... but the other 95 % of the other time it takes a little getting used to. I kinda like it this way because it is something different , as I have never had this set up on any other boat before.
11-30-2014, 10:57 PM
#16
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Disconnect your throttle cables from the carbs before trying to tune
Back off your primary and secondary idle screwS so the throttles plates are fully closed crack the rear plates open 1/4 turn and front 1/2 turn. Turn all idle mixture screws all the way in and the back out 1 1/2 turns. Start the engine and adjust the front only to get idle around 700. If you need to turn primary idle in any more than another half turn to get idle try giving secondary idle another 1/4 turn.
Once you have idle at 700 adjust your mixture screws 1/8 turn at a time. Turn screws out until the idle stops going up then back in 1/8 turn. Make sure all 4 corners are adjusted the same.
Now reset your primary idle to 700-800 in nuetral. In gear should be 600-700
Back off your primary and secondary idle screwS so the throttles plates are fully closed crack the rear plates open 1/4 turn and front 1/2 turn. Turn all idle mixture screws all the way in and the back out 1 1/2 turns. Start the engine and adjust the front only to get idle around 700. If you need to turn primary idle in any more than another half turn to get idle try giving secondary idle another 1/4 turn.
Once you have idle at 700 adjust your mixture screws 1/8 turn at a time. Turn screws out until the idle stops going up then back in 1/8 turn. Make sure all 4 corners are adjusted the same.
Now reset your primary idle to 700-800 in nuetral. In gear should be 600-700
Thanks Billy Boats for your time on giving a detailed description on the "how to" of idle setting. I am looking forward to making the adjustments.
12-01-2014, 12:57 PM
#17
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I run some pretty rough cams in my big blocks. Try to keep it around 800 so it don't destroy the transmissions or outdrives (depending what boat its in) when shifting in gear.
