SeptemberC
Active Member
Islandia Mercury Sportjet 240 EFI Gen 2 HELP needed
I am starting a new thread for this even though I originally requested help for this issue in my other LONG thread.
HISTORY: Wednesday June 7th I had my Islandia tied up to my cousins boat. We both started up our engine to move the boats to an area that the wind wouldn't blow our boats into the shore. UNKNOWN: Did I turn my engine off first. We floated for about 2 hours and I had my dual battery switch ACCIDENTALLY turned to BOTH. I had an inverter hooked to battery 2. We were using it to be able to use a blender. We were getting blown into the shore again and I went to start my boat and "click" it wouldn't start. That's when I realized that the battery switch was set on BOTH. The marina sent a guy with a jump box but it had only been on charge for an hour. We assumed that it didn't have enough power to start my engine. My cousin towed my boat 20-30 min admittedly too fast. Most people on my boat were sitting on the back deck and the captains chair during the time we were floating and being towed. We arrived back at the dock at the house and I went into town and purchased a battery at Walmart and a battery charger. My husband installed the battery and "click" The bendex was raising on the starter but would not turn the engine over. UNKNOWN: Was this the same as when I first tried to start it? At this point my husband noticed some smoke coming from the starter and the dual battery switch. Thursday June 8th We replaced the dual battery switch and we installed a new starter w/solenoid 892339T01. Still the same thing happened when we tried to start it. We bypassed the battery switch and wired directly to the engine. Same result. NOW I was completely sick. . .REALLY. Ulcer. . .So I had someone tow me with the ski to the boat ramp and we put it on the trailer. We towed it into town and a tech at a boat service center first tried jumping the other solenoid (816108A2) it made the bendex pop up. So then he pulled the cover off the engine tried to turn the engine by hand and. . NOPE. He started taking the spark plugs out and water ran out. They then told us they couldn't help me and we left. That evening my friend who is a merc mechanic called me back and tried to calm me down and explained that it wasn't as bad as it sounds and for us to go out to the boat, pull the safety switch, pull the plugs and turn the engine over until the water stops coming out. Then to squirt some 2 cycle oil into the cylinders and put the spark plugs back in. We did that and by now its dark outside. I was so sick I had to go to bed. Friday June 9th, I got 6 new plugs. My cousins friend from Cincinnatti who is a Merc mechanic just happened to be at the same lake we were. He came over and looked it over and suggested that we take it to the water and run it. (At this point I was scared to death to put it back in the water . . what if the engine filled with water again. . . ) He had trouble starting it I assume because there was so much oil in the cylinders. I'm not sure what he did or touched because I was in the truck. . .But he got it running. After about 10 minutes of running it at idle, 1/4, 1/2 and WOT he brought it back to the dock at the house. It was running rough at anything less that 1/2 throttle and we had 5500 to 5700 RPMs Before all of this we had 6000 RPM. Assuming that the plugs were fouled from all of the oil we put 6 new properly gapped NGK BPZ8HS-10 plugs. NO CHANGE in performance. We ran it the rest of the day, floated, tried the best to enjoy our last day there. We ran a tank and 1/2 of fuel out.
HOME: We put another set of plugs in it and I purchased a couple coil packs. LAST YEAR I had an issue with low RPM and Dr. Honda kept telling me to check compression.. . I ended up finding a bad coil. Surprisingly enough the engine did not run rough or sound weird, just low RPMs. Replaced that coil pack and BAM 6000 RPMs. OK back to current. We tried switching coil packs around to see if it ran differently. Unfortunately we were in the driveway not the water so this wasn't the best scenario. I'll attach pics below along with what Cylinder # they came out of. We put a can of seafoam in it and took it to the river and ran it all day and ran the whole tank of fuel out. MY merc guy said by looking at the pictures he think its running lean. He suggested that the manual pump may be starving the cylinders and to rebuild it. By looking at the same pics Dr. Honda believes that it may be a spark issue. He suggested that we get an inline spark tester. We checked compression and Cyl # 1,3,5 had 110. Cyl # 2 had 100, #4 had 110 and #6 had 115. I filled the tank 3/4 full and put 2 bottles of Lucas Upper Cylinder lubricator and fuel system cleaner in it. The pump was rebuilt today and reinstalled. I also cleaned the throttle body with Throttle body cleaner and a rag, I DID not just spray it down into the the throttle body. We used the inline spark tester (in the driveway) it appears that all are firing. By the time we got everything put back together it was close to dark. We took the boat to the river and we ran it. It seems to run SLIGHTLY better but at no throttle it seems like it want to quit. It still runs rough at less than 1/2 throttle and we MIGHT have slightly higher RPMs. (DON'T take this statement as fact but it might feel like the throttle needs adjusted)
ALSO. . . THE throttle assist NO LONGER works. BUT WHY?? Thinking out of the box...WHAT could have happened during this whole process that would cause it to run rough, low RPMs and the throttle assist to stop working?
Please try to refrain from unhelpful negative comments. I have video (for sound purposes) I have pics of the plugs and I have several pics of the engine (as best I could) hoping that maybe someone would see the switch that says flip this so that it won't run rough, or the one that says flip this to increase your RPMs LOL
Another thought I just had. I always use quicksilver 2 stroke oil but I think the last 2 jugs I bought were NOT premium plus.
See pics below. I will try to add videos to you tube and post the links.
HE DID WIPE THIS ONE BEFORE I CAUGHT HIM TO BE ABLE TO TAKE PICS
More pics next post
I am starting a new thread for this even though I originally requested help for this issue in my other LONG thread.
HISTORY: Wednesday June 7th I had my Islandia tied up to my cousins boat. We both started up our engine to move the boats to an area that the wind wouldn't blow our boats into the shore. UNKNOWN: Did I turn my engine off first. We floated for about 2 hours and I had my dual battery switch ACCIDENTALLY turned to BOTH. I had an inverter hooked to battery 2. We were using it to be able to use a blender. We were getting blown into the shore again and I went to start my boat and "click" it wouldn't start. That's when I realized that the battery switch was set on BOTH. The marina sent a guy with a jump box but it had only been on charge for an hour. We assumed that it didn't have enough power to start my engine. My cousin towed my boat 20-30 min admittedly too fast. Most people on my boat were sitting on the back deck and the captains chair during the time we were floating and being towed. We arrived back at the dock at the house and I went into town and purchased a battery at Walmart and a battery charger. My husband installed the battery and "click" The bendex was raising on the starter but would not turn the engine over. UNKNOWN: Was this the same as when I first tried to start it? At this point my husband noticed some smoke coming from the starter and the dual battery switch. Thursday June 8th We replaced the dual battery switch and we installed a new starter w/solenoid 892339T01. Still the same thing happened when we tried to start it. We bypassed the battery switch and wired directly to the engine. Same result. NOW I was completely sick. . .REALLY. Ulcer. . .So I had someone tow me with the ski to the boat ramp and we put it on the trailer. We towed it into town and a tech at a boat service center first tried jumping the other solenoid (816108A2) it made the bendex pop up. So then he pulled the cover off the engine tried to turn the engine by hand and. . NOPE. He started taking the spark plugs out and water ran out. They then told us they couldn't help me and we left. That evening my friend who is a merc mechanic called me back and tried to calm me down and explained that it wasn't as bad as it sounds and for us to go out to the boat, pull the safety switch, pull the plugs and turn the engine over until the water stops coming out. Then to squirt some 2 cycle oil into the cylinders and put the spark plugs back in. We did that and by now its dark outside. I was so sick I had to go to bed. Friday June 9th, I got 6 new plugs. My cousins friend from Cincinnatti who is a Merc mechanic just happened to be at the same lake we were. He came over and looked it over and suggested that we take it to the water and run it. (At this point I was scared to death to put it back in the water . . what if the engine filled with water again. . . ) He had trouble starting it I assume because there was so much oil in the cylinders. I'm not sure what he did or touched because I was in the truck. . .But he got it running. After about 10 minutes of running it at idle, 1/4, 1/2 and WOT he brought it back to the dock at the house. It was running rough at anything less that 1/2 throttle and we had 5500 to 5700 RPMs Before all of this we had 6000 RPM. Assuming that the plugs were fouled from all of the oil we put 6 new properly gapped NGK BPZ8HS-10 plugs. NO CHANGE in performance. We ran it the rest of the day, floated, tried the best to enjoy our last day there. We ran a tank and 1/2 of fuel out.
HOME: We put another set of plugs in it and I purchased a couple coil packs. LAST YEAR I had an issue with low RPM and Dr. Honda kept telling me to check compression.. . I ended up finding a bad coil. Surprisingly enough the engine did not run rough or sound weird, just low RPMs. Replaced that coil pack and BAM 6000 RPMs. OK back to current. We tried switching coil packs around to see if it ran differently. Unfortunately we were in the driveway not the water so this wasn't the best scenario. I'll attach pics below along with what Cylinder # they came out of. We put a can of seafoam in it and took it to the river and ran it all day and ran the whole tank of fuel out. MY merc guy said by looking at the pictures he think its running lean. He suggested that the manual pump may be starving the cylinders and to rebuild it. By looking at the same pics Dr. Honda believes that it may be a spark issue. He suggested that we get an inline spark tester. We checked compression and Cyl # 1,3,5 had 110. Cyl # 2 had 100, #4 had 110 and #6 had 115. I filled the tank 3/4 full and put 2 bottles of Lucas Upper Cylinder lubricator and fuel system cleaner in it. The pump was rebuilt today and reinstalled. I also cleaned the throttle body with Throttle body cleaner and a rag, I DID not just spray it down into the the throttle body. We used the inline spark tester (in the driveway) it appears that all are firing. By the time we got everything put back together it was close to dark. We took the boat to the river and we ran it. It seems to run SLIGHTLY better but at no throttle it seems like it want to quit. It still runs rough at less than 1/2 throttle and we MIGHT have slightly higher RPMs. (DON'T take this statement as fact but it might feel like the throttle needs adjusted)
ALSO. . . THE throttle assist NO LONGER works. BUT WHY?? Thinking out of the box...WHAT could have happened during this whole process that would cause it to run rough, low RPMs and the throttle assist to stop working?
Please try to refrain from unhelpful negative comments. I have video (for sound purposes) I have pics of the plugs and I have several pics of the engine (as best I could) hoping that maybe someone would see the switch that says flip this so that it won't run rough, or the one that says flip this to increase your RPMs LOL
Another thought I just had. I always use quicksilver 2 stroke oil but I think the last 2 jugs I bought were NOT premium plus.
See pics below. I will try to add videos to you tube and post the links.
HE DID WIPE THIS ONE BEFORE I CAUGHT HIM TO BE ABLE TO TAKE PICS
More pics next post
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