25hp merc xd

[Fastjeff57]

I run a Merc 25 on my little toy boat using a regular tach and a battery from an old drill. Takes two wires: the kill wire on the black box is one feed, with ground the other. Select "4 cylinder/ 4 stroke" on the tach and away you go! The drill motor battery (14 volts) lasts for months IF I remember to shut it off! (Ah-hem.)

Jeff

[JohnsonM50]

I have a cougar cub 10' tunnel with a 25hp merc xd brown stripes dont know what year... and am looking for info on hooking up a tach and water pressure gauge, and where to get a low water pickup, or info on making something that would work...I just ordered a ron hill cleaver prop for the boat where should I start for height? The boat, its just for fun and messing around !! Any help would be great yes I am noob but am very able to do any work myself with some direction

As far as a water pickup Ive got this on my play hydro..





its an SS elbow [$-ouch] into the waterpump plenum, many hrs of fun on that, never an overheat. Convenient that the OMC has a reverse auxillary inlet plate. The exhaust tube has a pitot also but wasnt quite enough as their not supposed to steam

[Ron Hill]

Can you post more pictures of your play hydro??

Seems this looks like one of Ted May's water pick ups he used on Don Johnson's boat and on Eric Nordskog's....(They got DQ'd but worked great..)..

[JohnsonM50]

Can you post more pictures of your play hydro??

Seems this looks like one of Ted May's water pick ups he used on Don Johnson's boat and on Eric Nordskog's....(They got DQ'd but worked great..)..

[JohnsonM50]

As far as a water pickup Ive got this on my play hydro..





its an SS elbow [$-ouch] into the waterpump plenum, many hrs of fun on that, never an overheat. Convenient that the OMC has a reverse auxillary inlet plate. The exhaust tube has a pitot also but wasnt quite enough as their not supposed to steam

My Pal who took the pic told me it steamed [thought he meant fast ha ha] thats before the aux. set up.