2010年8月26日 · In the next few days I want to take the time for a step by step analysis of my MSX 140 and the final fix of my original ski. I just purchased another MSX 140 it has like 67 hours on the clock, and am documenting the full troubleshooting, disassembly and I mean complete disassembly, and reassembly of the MSX 140.

2008年11月19日 · Re: 2003 Polaris MSX 140..Worth getting? I had an '03 MSX 140 that I ran for two seasons and was very happy with it, LOVED it in fact when it was running, but that wasn't enough of the time, there were a series of problems with it, just some bad quality control, I think the '04's were a lot better but the '03's including mine had a lot of problems, I had a lot of down-time and warranty issues ...

2011年7月27日 · I own a 2003 Polaris MSX 140 ho. Owned for two seasons. Here is my current problem.. The problem started out by the jet ski bogging down while riding hard... not fast but jumping waves, spinning around.. the bogging occurred while having the jet ski out twice. The second time the bogging became more normal.

2011年5月6日 · What is the correct measurement of the TPS on a MSX 140? I built a TPS tester and am going to check it out this spring. My 140 will go to 6600-6700 then fall off to about 6400-6500. Plugs are very black and foul easily.

2021年3月30日 · (Going from memory) Factory stock MSX 140 pistons are 1mm larger diameter than the red engine cylinder size, so a 1.00mm oversize red engine piston is the same diameter as a ‘stock’ MSX 140 piston. I forget whether the dome height and shape of the MSX 140 piston differs from the stock red engine piston.

2009年8月2日 · Re: MSX 140 with severe hesitation, HELP PLEASE! i owned a 03 msx 140 had alot o problems two new motors and one of the last problems i had with it sounds alot like yours the fuel pressure is not enough its supposed to be around 25psi get a fuel pressure gauge and check it, on the return line get a vise grips start the engine read the fuel pressure if its low clamp the hose watch the pressure ...

Late build 03 msx 140. Ran 58.5 GPS, 68 degree air, slight tail wind, "full superman" 10 gals fuel, front storage bin removed, 1/2 + mile run. Turned around, 57.3 GPS.

2005年7月18日 · I purchased my 2004 MSX 140 last year and within the first 2 hours of riding time, I had three problems. Once, a steering cable broke. Twice, a small wood chip of some sort got stuck in the impeller. I was a bit disappointed, but guys on this board told me I …

2023年6月16日 · Just bought a 2003 polaris msx 140 HO need help cranks over lovely 114 hours on the clock loads of compression but no spark no sound of fuel pump and no noise from ...

2016年8月2日 · An overheated EMM can become damaged and need repair. That said, the MSX 140 EMM are resistant to the C89 capacitor problem that is quite common on the Virage and Genesis EMM. Polaris did a warranty recall on the factory EMM for 2003 production. There should be a sticker on the side of the flame arrestor cover if the work was done at a dealer.