Page 1 of 2 1 2 LastLast
Results 1 to 10 of 18

Thread: RXP Non Starter

  1. #1
    steved's Avatar
    Join Date
    Sep 2006
    Location
    UK
    Posts
    358
    +1
    14

    RXP Non Starter

    Out Yesterday with my Bud Hydrotherapy and the following occured;

    Ran ski for say 20 mins then stopped at a beach stayed there for say 15 mins then the ski would not start ( strange)

    Removed plugs all looked ok not wet But prehaps no fuel cranked on Fuel throttle to clean out still nothing. Hear fuel pump prime and time out .

    Started towing ski back this would be a long trip after a few mins on the rope, I tried to start again it started to fire on 1 then 2 then 3 then it was running good.

    Took off the rope and it ran at 8550 / 8600 for the rest of the outing starting and stopping fine.

    The water was very cold and you could smell fuel behind has it stayed on cold start / water temp on gauge 34deg F

    Any Ideas or has this happened to anybody before ??
    Thanks

    Steve

    Speck as follows :

    Riva Ecu 50Ib injectors
    Valve train upgrade
    Rotax wheel
    External intercooler
    Gibson Exhaust
    Rotax Thermostate
    Riva 3inch intake inside
    15-19 with stainless liner
    81mm ring
    Race engineering block offs
    Riva grate


  2. #2
    R88ory RXP's Avatar
    Join Date
    Feb 2008
    Location
    Kent, England
    Posts
    2,737
    +1
    46
    I have heard of starting problems in cold conditions and big injectors. Are you running stock plugs?? The thread i read said that starting was allot better with the upgraded plugs that you can get. The name escapes me at the mo. The only problem with these plugs is that they are prone to fouling. R88 P.S the cold water is good for speed tho huh!!

  3. #3
    steved's Avatar
    Join Date
    Sep 2006
    Location
    UK
    Posts
    358
    +1
    14
    HI
    I am using the STD plugs at the mo, yep the cold weather was definatly good for speed but in these conditions seens to be running a bit Rich.

    Thanks

  4. #4
    R88ory RXP's Avatar
    Join Date
    Feb 2008
    Location
    Kent, England
    Posts
    2,737
    +1
    46
    Quote Originally Posted by steved View Post
    HI
    I am using the STD plugs at the mo, yep the cold weather was definatly good for speed but in these conditions seens to be running a bit Rich.

    Thanks
    Normally the cold would make you run lean, wel WOT anyway. I think that the combination of cold temps plus big injectors could have been the issue. Im not all that clued up onit but this is what i had read in the past. Maybe get some of the other plugs some do say that with anything stage 2+ the stockers start to struggle. R88

  5. #5
    jpeconsult's Avatar
    Join Date
    Jul 2007
    Location
    Pineville, LA
    Posts
    5,448
    +1
    1
    Denso Iridium IXU27 ???

  6. #6
    ou812's Avatar
    Join Date
    Jun 2006
    Location
    Riverside,ca
    Posts
    6,210
    +1
    198
    This happened to me a few weeks ago. 60 degree air & I wasn't even in the water. It fired right up in the garage before I left but it would only crank & crank on the trailer at the ramp. Took the plugs out several times to dry them out. Nope......It was like there was no spark. Trawlercat had a spare plug so I put it in & it sputtered like it was flooded for about 20 seconds & then it was all good. This happened to me once before when the ski had only 20 hrs on it too. I think the older plugs didn't have enough spark left in them maybe?

    I'm running stock injectors too.

  7. #7
    R88ory RXP's Avatar
    Join Date
    Feb 2008
    Location
    Kent, England
    Posts
    2,737
    +1
    46
    Quote Originally Posted by jpeconsult View Post
    Denso Iridium IXU27 ???
    Yes Yes that is what i wanted to say. Cheers JP

  8. #8
    Ride Hard! aha's Avatar
    Join Date
    Jul 2005
    Location
    Covina, Ca
    Posts
    2,009
    +1
    11
    I had Denso plugs... they lasted 15 hours in my ski.... pulled them out and put stock ones in and it runs just as good as the Denso plugs.

    You might want to just change out your plugs and keep a spare set in the ski.

  9. #9
    West Texas RXP skoepp's Avatar
    Join Date
    Oct 2007
    Location
    west texas
    Posts
    12,019
    +1
    149
    When i was testing my RXP in cooler conditions, say 40 - 50 air and 55 water. My ski would not want to start in morning but once warm it was not an issue. And you definitely could smell the gas more. Ski will run richer until warm. This was with stock ecu and 50s with RRFPR.
    I think arround 10.5 to 10.8 AFR when cold but once warmed up it would come up to mid elevens.
    You would think that the Riva ecu would not be as rich at idle but i can not tell you yet, as i have not ran the Riva yet.

  10. #10
    speedskixp's Avatar
    Join Date
    Feb 2008
    Location
    venice fl.
    Posts
    8,117
    +1
    120
    Quote Originally Posted by steved View Post
    Out Yesterday with my Bud Hydrotherapy and the following occured;

    Ran ski for say 20 mins then stopped at a beach stayed there for say 15 mins then the ski would not start ( strange)

    Removed plugs all looked ok not wet But prehaps no fuel cranked on Fuel throttle to clean out still nothing. Hear fuel pump prime and time out .

    Started towing ski back this would be a long trip after a few mins on the rope, I tried to start again it started to fire on 1 then 2 then 3 then it was running good.

    Took off the rope and it ran at 8550 / 8600 for the rest of the outing starting and stopping fine.

    The water was very cold and you could smell fuel behind has it stayed on cold start / water temp on gauge 34deg F

    Any Ideas or has this happened to anybody before ??
    Thanks

    Steve

    Speck as follows :

    Riva Ecu 50Ib injectors
    Valve train upgrade
    Rotax wheel
    External intercooler
    Gibson Exhaust
    Rotax Thermostate
    Riva 3inch intake inside
    15-19 with stainless liner
    81mm ring
    Race engineering block offs
    Riva grate
    It will run rich if the engine does not get up to operating temp but I had a similar problem when I had my gibson muffler but I had been sitting on the back of the ski when it was parked and all I could figure was that some water backed up into the exhaust. I finaly got it started and did not have that issue again.

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. WTB - Parts RXP 04 starter double gear 87/86T code 420834486 used
    By Lbaronio in forum Sea Doo Classifieds
    Replies: 0
    Last Post: 10-30-2012, 10:04 PM
  2. Replies: 2
    Last Post: 11-06-2011, 09:52 PM
  3. FS RXP/RXT starter
    By vxrpete8 in forum Sea Doo Classifieds
    Replies: 1
    Last Post: 02-15-2010, 04:01 PM
  4. Just bought a 07 RXP non supercharged
    By JRoX85 in forum 4-Tec Performance
    Replies: 25
    Last Post: 04-01-2008, 03:19 PM
  5. seadoo RXP non supercharged?
    By Bastiaan maarten Bok in forum 4-Tec Performance
    Replies: 0
    Last Post: 10-23-2007, 09:58 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •