2000 30hp Johnson possible water restriction/over heats

saltchuckmatt

Commander
Joined
Jul 19, 2019
Messages
2,785
that display is for EMMs or FICHT ECUs isn't it ?
If your addressing me, then no. That system check came with my 3 cylinder 96 25 Johnson. Not sure why they didn't have a system check tach but it's better than nothing.

I was just wondering what the OP had for a hot warning device....not sure why this is being so hard but maybe the parts people have messed this up.
 

saltchuckmatt

Commander
Joined
Jul 19, 2019
Messages
2,785
Ok, eBay had a gearcase for sale.....zooming in I see what it should look like. Clearly isn't the one you have.
 

Attachments

  • Screenshot_20250112-094246.png
    Screenshot_20250112-094246.png
    1 MB · Views: 2

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,073
See post #26-----This should be so easy to sort out / correct !-----The pump housing on the 2 cylinder 20 / 25 / 30 HP looks the same but is not the same.----Get the correct parts and go boating !
 

ct1762@gmail.com

Master Chief Petty Officer
Joined
Jan 17, 2019
Messages
890
If your addressing me, then no. That system check came with my 3 cylinder 96 25 Johnson. Not sure why they didn't have a system check tach but it's better than nothing.

I was just wondering what the OP had for a hot warning device....not sure why this is being so hard but maybe the parts people have messed this up.
this is excellent advice! one of the most critical things you can do is verify the temp sender is closing at the appropriate temp (im guessing this is a blue stripe one so 240f or so in a pot of oil. i like to replace with the all-brown ones that close at 200f or so) and that the hot horn is working. probably wouldnt help in many cases at high speed, but still as you said better than nothing. additionally these packs should've warned you with the SLOW mode limiter at around 2500rpm. god help you if that doesnt work as these packs are $400
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,073
The 3 cylinder 25 / 35 HP use optical ignition.-----Temperature sensor is needed to control timing for warm-up on cold starts I believe.
 
Top