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2004 Sportster 155hp single ROTAX engine boat, four-stroke Boat has not been used much. After not being used at all for a 3 years I've been using it a more this summer. difficult to start and once started will stop a few times as I idle out of the boat launch area one revved up engine doesn't...

*sorry wrong forum - can't seem to delete* 2004 Sportster 155hp single ROTAX engine boat. Boat has not been used much. After not being used at all for a 3 years I've been using it a more this summer. difficult to start and once started will stop a few times as I idle out of the boat launch...

I've never been able to find a fire extinguisher that fits in the plastic tube mounted in my 2004 sportster - any ideas where to find a narrow (reasonably priced) one that'll fit in there?

I hope it never happens, but if it does - I understand that you need to clamp a hose somewhere when being towed over a certain speed to prevent water from getting into the engine. Can anyone tell me where that hose is - I have a 2004 155 sportster single engine.

I have a minor-ish stereo (I like it) no amp just a head unit, couple 50 watt speakers & a powered sub. I like to listen to the baseball game but the engine destroys the AM radio reception. I do not notice this when just playing tunes on the USB interface. Is this a capacitor thing? Or...

Hi Guys, I use my 2004 sportster 4tec 155hp (single engine) only about 5 times a year (wife/kids/job). When exiting the boat launch I have to go very slowly, in forward at idle speed. I noticed last weekend the motor sounded really flat & rough at idle, like it had gotten loose on it's mount...

When winterizing my 2004 155 hp single engine 4-tec, I gravity-feed RV antifreeze thru the water intake in the back. I was wondering about the following; 1. Anyone have any thoughts about using Ethanol or Propylene Glycol for this? Propylene Glycol is a little more expensive and I read here it...

Finally got around to installing these new LED taillights from ebay but had a problem; http://www.ebay.ca/itm/2X-LED-Tail-Trailer-Light-Indicator-1X-Number-Plate-For-Jet-Ski-Boat-Submersible-/370760923090?pt=Motors_Car_Truck_Parts_Accessories&hash=item565312b7d2&vxp=mtr&_uhb=1 My...

So I tested my bilge pump on land using a hose & it worked fine. Got out onto the lake & took on some water - and then the bilge pump didn't work :( Went to shore & checked things out, it WAS on & straining, but it wasn't pumping water. If I were to guess, I'd say it was stuck on some debris or...

Hi all. I noticed the running light on the left side of my trailer does not work. Blinker & brake are still OK. Can you open up these lights to replace a bulb or would that ruin the seal? Seems a shame to have to buy two new entire taillights (to match) for what is almost certainly a...

I'd like to comfort of knowing mine works. I assume; - it should work even if key not in boat (true?) - it should work even if boat switched off (true?) Also, what's the best way to test (boat in garage), just get the hose & start putting water in the engine compartment?

I'd like to change the oil & engine coolant this year - I don't use the boat more the about 20 hours/season, but it's been a few years so I think it's time. New oil filter & plugs too I suppose. I search the forum but couldn't find any directions - I rather *not* have to pay my local dealer for...

I'd like to take my boat in for an oil change & am wondering what other maintenance I should ask the dealer to do. New plugs maybe? I do my own winterization so I won't be asking the dealer to do that. Last fall I; - flushed the system with rv pipe fluid - removed the batteries - added...

I've been having electrical problems & my manual says "If battery is regularly discharged, check this fuse condition. Fuses for the charging system are located at the starter relay in the engine compartment". I've located SOME fuses in the engine compartment & verified they are not blown - in...

I have a 4-tec sportster & will be adding a deep cycle battery for my electronics. Wondering what size to get - if it's safe to charge it IN the engine compartment after removing the cables I'll get the biggest one. I could invest in some quality charging cables & hook the charger up...

My Bazooka marine sub-woofer came (ebay) yesterday. For those unfamiliar, it's basically a woofer in a tube, about 22" long and 8" in diameter. I had planned to mount it on my tower BUT the instruction booklet suggests the business-end of the tube should point into a corner. I'm not...

I've removed my JBL head unit, about to replace with Alpine. There are wires coming out of the old JBL head unit that end in a plug - however; - the blue wire (Auto Ant) has a 1A fuse in-line (prior to ending in the plug) - the yellow (backup b+) and black (ground) wires have a 10A fuse box...

I've got a 2004 4-tec & am replacing the stock sound system. Tried to take out the JBL marine head unit today - basically I opened the forward hatch & remove a pocket - from there I can see the back of the head unit. There a screw in the back of the head unit holding it only a metal elbow...

I've got a 2004 4-tec 155hp single jet, it has about 65 hours on it. I've noticed the gas mileage is TERRIBLE and I was wondering, if anything, you can do about it? An additive - drive slower/faster? Not into replacing the engine or anything, just that when camping last year (no gas...

Curious what everyone thinks the best 6" marine speaker is? Right now my existing speakers have screws exactly 6" apart - I'm assuming that translates into a 6" replacement speaker. I'd rather not get into cutting a new larger hole, not that I'm terribly afraid doing it, more like I've got...