Ok guys need some help.

I ran through a bunch of vegetation a few weeks ago and some got clogged in my water cooling system. Basically the [censored] hole is only producing about 50% pressure that it was before (feel free to insert your jokes here :)).

I ran the headphones with garden hose on motor and it seems like plenty of water is flushing through as a lot of water is coming out of the prop but the [censored] hole still clogged.

Any thoughts on ways to flush this crud out?

Thanks!

What motor brand year and hp? It will be mandatory to pull the thermostats and poppet assembly to clean them and back flush the cooling system. Pull the hose off of the pizzer at the block and cowling to open it up. Try to borrow a temp gun so you can check the motor for hot spots. I have had to remove cylinder heads, exhaust cover and power head before to clean the trash out so motor would cool. Had a Merc V6 that sucked the exhaust adaptor full of small gravel.