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mr1

  1. Blazin14

    AR230 Woodruff Key Shredded

    I just replaced my engine in my 2007 AR230, ran fine for a week, then shredded the woodruff key. Can anybody confirm the factory replacement key is 90280-03047-00 with flat edge? The flat edge key doesn't seem to match the key slot on the shaft and flywheel, which is my concern. Not exactly...
  2. Hallz17

    Need Help! MR1 Starter Motor Replacement - 2009 Yamaha SX 230 HO

    Can anyone out there please help with some step by step instructions, tips, or a diagram / pics on swapping out the starboard side starter motor. I have a 2009 Yamaha SX230 HO. Thank you
  3. A

    05 SX230 - low oil, cranking no start, fluctuating rpms

    I purchased an 05 sx230 from a local dealer with the port mr1 engine being fully rebuilt. Comes with 1yr warranty. I broke it in and it ran great for a while. I then started getting low oil pressure light a few times. I would add a bit of oil every time and have now added almost a quart in the...
  4. C

    New SBT motor will not start. Yamaha MR1 HO

    This is turning into a very frustrating situation. I purchased a new/rebuilt yamaha MR1 HO motor for an SX230HO from SBT and it will not start. The motor turns over, verified spark, fuel injectors are spraying, fuel pressure good and compression on all 4 cylinders, the only thing left is timing...
  5. Tuffkopf

    Boat 07 SX230 HO (S.E. Wisconsin)

    Hi guys, I did all the stuff that you would want done! Turn-key water ready! Be on the water this weekend! Twin 160hp MR-1 engines 170 hours on the motors Includes the main seating area table & separate swim deck table Snap-in carpet is in great shape Bow filler cushion included 8 life jackets...
  6. chamilton89

    Yamaha MR1 Blown Valve Cover Gasket, Oil Leak

    II need an MR1 expert. I am working on a 2014 Yamaha VX Deluxe for a friend. I have worked on a ton of Sea-Doos but have less experience on these MR1 engines. My friend said they were riding and suddenly lost power and started smoking really bad. Pulled the seat and cylinder 4 spark plug well...
  7. F

    MR1 PWC FX-140 HELPPPP DROPPED VALVE

    I bought a pair of FX-140 year 2004 in very mint condition. They both have originally 80 hours however the owner stated new motors were put in both and have roughly only 40 hours... Not sure what happened that caused them to put a new motor if they only had 80 hours however everything in the...
  8. cwoav8r

    Just change the plugs!

    So, yea, long time no sea... work has been getting in the way of my personal life for way to long, and severely interfering in my water time. Even though, every time we have had a chance to get out on the boat (read... like four times a year) I have had no issues with the boat at all until last...
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