I have a 2019 Raider 220 Pro fisherman that I just purchased from marketplace from a lady who's dad passed away. I don't know much more about the history but it was used on the ocean and could tell is was kept there docked in the water for a couple months I would assume. Overall the boat is in really good shape with only 230 hours normal wear but seems to be well cared for inside still smells new.
Before taking the boat out I wanted to do a little maintenance for peace of mind. So what I have done so far is I ran it with the fake lake hooked up for about 5- 8 mins just fine with decent Tell Tale and then shut it off to change the engine oil. No alarms nor overheated noted at this time. The oil was normal and clean but about a half a quart low. Proceeded to change the engine oil and filter as well as the transmission oil, I also installed a new OEM impeller kit for peace of mind (old one looked fine) when I removed it and made sure of proper install of impeller was right on the new one. I ran it after the oil change and new impeller using the lake again and noticed no tell tale at and when first started it revs out high at 2000 rpms all and After about 2 min the engine overheats and I get a solid beep with (Eng Warning level 1) (Eng Over Temp) (Eng Power Reduction) on dash. I do some research and then tried a large barrel to use instead of fake lake still and it overheats again with no Telltale. My next plan was to change the Thermostats so I installed new OEM T-Stats the old ones looked normal very minor build up still changed out. Ran it again and this time I get a very weak intermittent telltale if I throttle up but then telltale weakens and still overheats. Next I dropped the lower and hooked pond pump up and flushed for 24hrs with salt away, I also removed T stats for flush. After the salt away flush was done I flushed again for 2 hours with dish soap and vinegar just to be sure. Then followed by fresh water flush for a while. After all that I ran engine again using large barrel engines starts and still idles at 2000rpm I then throttle up and it drops to 1000 RPMS the temp slowly climbs to 155-160 degrees no tell tale at first takes about a min to start and its really weak then stops, then engine alarms sets off with same solid beep and (Eng Warning level 1) (Eng Over Temp) (Eng Power Reduction) on dash like it has been. Do more research and checked the poppet valves both looked fine and in good working order exercised and reinstalled. I start the engine to test and it still revs out to 2000RPM for 30 sec then drops to 1k this time it runs longer than before and I have a solid telltale within 10 secs but still overheats and I get the same alarms again.
Whats Next?

Before taking the boat out I wanted to do a little maintenance for peace of mind. So what I have done so far is I ran it with the fake lake hooked up for about 5- 8 mins just fine with decent Tell Tale and then shut it off to change the engine oil. No alarms nor overheated noted at this time. The oil was normal and clean but about a half a quart low. Proceeded to change the engine oil and filter as well as the transmission oil, I also installed a new OEM impeller kit for peace of mind (old one looked fine) when I removed it and made sure of proper install of impeller was right on the new one. I ran it after the oil change and new impeller using the lake again and noticed no tell tale at and when first started it revs out high at 2000 rpms all and After about 2 min the engine overheats and I get a solid beep with (Eng Warning level 1) (Eng Over Temp) (Eng Power Reduction) on dash. I do some research and then tried a large barrel to use instead of fake lake still and it overheats again with no Telltale. My next plan was to change the Thermostats so I installed new OEM T-Stats the old ones looked normal very minor build up still changed out. Ran it again and this time I get a very weak intermittent telltale if I throttle up but then telltale weakens and still overheats. Next I dropped the lower and hooked pond pump up and flushed for 24hrs with salt away, I also removed T stats for flush. After the salt away flush was done I flushed again for 2 hours with dish soap and vinegar just to be sure. Then followed by fresh water flush for a while. After all that I ran engine again using large barrel engines starts and still idles at 2000rpm I then throttle up and it drops to 1000 RPMS the temp slowly climbs to 155-160 degrees no tell tale at first takes about a min to start and its really weak then stops, then engine alarms sets off with same solid beep and (Eng Warning level 1) (Eng Over Temp) (Eng Power Reduction) on dash like it has been. Do more research and checked the poppet valves both looked fine and in good working order exercised and reinstalled. I start the engine to test and it still revs out to 2000RPM for 30 sec then drops to 1k this time it runs longer than before and I have a solid telltale within 10 secs but still overheats and I get the same alarms again.
Whats Next?


