Yes. Take the tan wire loose going to the temp sensor, and ground it to the block. I think the key has to be on can't remember. The buzzer will sound.. I would say, pump, or crapped blocked somewhere. Start with poppet T-stats. If nothing is found, pull the lower. Check pump, and housing... With the T stats out connect a water hose to the water tube. See if water flows through the engine easy, and out the T stat holes. Then do poppet. You can also pull the water tube out of the exhaust plate if you think if it could be blocked. Make sure the lower unit is clear, and flows great too.. Sometimes sand can get into places, then dry, and become like a rock.. Also have seen sticks lodged about everywhere.. extreme cases I have seen sticks in the block, and blocking water to part of the head. Also have had sand get hard inside of heads.. I bet one head a cup of hard sand it in. All blocked up... You Never know...... Also have seen some lower units with not enough holes in the cone, or to small, and starve the motor of water....
One thing is for sure not enough water is a real bad thing, and will hit the wallet!!!!!!!
My drag/280 have 20 lbs running 80 mph, barley reads any psi at idle. I'm also dry stacked.
Roy
