idle rpm

[captlucky13]

i got my boat back the other day took it out umm it idles great if i hook it up to the hose but still a little low i took it out and when it idles it stalls unless i give it more gas is this because of the extra pressure or force of the water against the prop when i took it out should i turn the idle up higher will this fix the problem i think the idle now is at 850 deff below 1000 rpm

[CopyKat]

What kind of motor and what are the manf specs? My Suzuki's idle at 300 or so and don't die when I put it in gear.

[captlucky13]

305 chevy

[CopyKat]

Ahh, that's a horse of a different color No help here, sorry.

[captlucky13]

hahah its like a car so im guessing the force of the water is causing the idle to be lower than it should be

[76GMC1500]

Mercruiser outdrive? If the shift cable is stiff and it takes too long to shift, the ignition interrupt system can stall the motor out. 650-700 rpm in gear is right for most v8's, regardless of manuf.

[prockvoan]

My other boat with twin 350's with inboard,I had to set the rpms at 800,props were dropping them out to low when shifting.no problems after that.