One riser warmer than other? MP340 2007

[retox1]

Quick question. Out at the lake for my first real test of my new to me 07 RZ2 and I noticed that if I pop the hatch open one exhaust riser is noticeably warmer than the other. Its not really that hot, I can easily hold my hand on the warmer one forever if I want. Digital readout on the dash says engine temp is 145-150 and I havent got any alarms. So is this normal or do I have a blockage starting somewhere? The lake is a bit dirty but not sure where I should start checking or what hoses I should pull off. Its the port side that is a little hotter. Any help would be great.

[dom w. forte]

Normally one side is warmer, watch the exhaust when you flush it out of the water and see how the flow looks.

[retox1]

Just got back from a few days at Lake Koocanoosa in BC. Pretty sure i was just being overcautious since it was my first few days using the new boat. I kept an eye on it the and never had any issues. Temp stayed under 155 and from what i can see when surfing, flow from the exhaust looks good on both sides. Now that i'm back home i thought i'd pull off a few of the hoses and check for any junk in there. I was thinking i'd get a raw water strainer, had one on my old boat and was always surprised how much crap was in it.

[Travism]

Right on ! I have been out at koocanusa all week. What color is your boat . We are in the blue and black z3

[retox1]

Red/black RZ2. We were up north of the Kikomun bridge for the last few days. Some friends are lucky enough to have a lease site on the water near there. Nice lake but lots of junk coming down the river this time of year. Cold too! Water was 58 degrees when i first put the boat in.

[retox1]

Thought i'd update this. I pulled off a few hoses and found lake junk in a few places. Tranny cooler was a bit blocked but obviously not enough to affect engine cooling much (we were running around 150). I'm going to poke around a bit more and see what else i can find, i have no idea if the previous owner ever cleaned this stuff out. Going to order a raw water filter tonight as well.

I know the raw water flows throught the Vdrive before anything else but i was wondering if there is a screen in there or anything to catch debris?

[chpthril]

no screen in the v-drive, but the trans cooler can collect debris.