jump starting another boat ?

[viking61]

Hi , does anyone know if it is safe to jump start another rib that has a flat battery. Taking usual precautions with petrol , fumes and electricity into account of course. Can i just run some leads same as a car . Will my shiny new Mariner ( or my pals crappy old one ) get fried in the process ? anyone tried it before ?

thx

[captnjack]

Its no problem just realize that there's no engine block "ground" (earth) like you would use with a car. pos-pos, neg-neg works fine just realize there will be some sparking so make sure everything is well ventilated.

[A1an]

Itl be fine.

A top tip I was told of and use any time I jump start is to switch something ON on the vehicle/boat that is BEING started before connecting jump leads, on a car Il switch the lights on, this will absorb any electrical spike you get from the jumping process and itl protect sensitive electrical items like ecu's, LCD gauges ect.

Ive learnt that after blowing the LCD odometer on a VW.

[wavelength]

whether its good practise or not we've done it a few times for boats and jet skis (sorry!) at the slipway we use. The most memorable was the guy when we were fishing at night way off one winter. He came on the vhf in the early hours and asked for a jump start and proceeded to tell us he had some extra long jump leads onboard cos it happened to him a lot this flat battery thing! Couldnt quite get it why he should be so well prepared with the long really good quality leads but coulndt be ***** to buy a new battery. then again probably the leads were "free" from his employers!

[ncp]

35USD with a coupon. I carry it when offshore.

12 Volt Power Supply and Jump-Start

[Starovich]

Done this a number of times when the "Birmingham Navy" show up, proceed to drive the new range rover out till the boat floats (filling the car.) then go out for the day and leave all the electronics on over lunch.

I now keep a set of jump leads in the boat at all times, much easier than the tow back.

"Many" boats can still be pull started even with a flat battery, read your manual in case its you

[Hightower]

Also make sure the feed from the doner boat is 12v and not 24v

[starnetman2001]

I actually bump started a merc 135. Was left in gear with ignition on and just started as pulled through the water.

Tow boat was most surprised when I overtook him....

Actually may have been a 115...

[9D280]

Yep, did it at Loch Lomond on my last outing. (thanks Kev!)

If you read the engine section, I think I now know why...

[viking61]

thanks to all for responding , will give a it a rip at the ( if you believe the forecast ) SUNNY WEEKEND !!!!!!!!!!!!!!!