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  1. #1

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    Gp1300r oil pump issues

    Hi I have a 2004 gp1300r done 75 hours from new the front cylinder got trashed. when the engine come out of the ski the oil pump was seized solid an corroded so probably the cause so the pumps been replaced an the engines gone back into the ski the oil pump has been bled an is all good but there is no oil in the lines from the oil pump to the carbs do I need to pull them off an bleed them individually or will they fill up when I use the ski next I'm going to run a pre mix for the first few hours anyhow but I'm a bit nervous as its cost a fortune to rebuild. Thanks


  2. #2
    Happily Self-Employed WFO's Avatar
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    Variable ratio pump... doesnt deliver much oil at idle. It will start pumping after you run it a bit

    Hold the throttle wide open and crank it a few times. That will kill spark and hurry up the oil delivery.

  3. #3
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    You could also remove each line individually at the pump, fill it with a syringe and re attach it. I always do it this way when replacing oil lines.

  4. #4
    powerstroke specialist mikegp's Avatar
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    Quote Originally Posted by Mattw View Post
    Hi I have a 2004 gp1300r done 75 hours from new the front cylinder got trashed. when the engine come out of the ski the oil pump was seized solid an corroded so probably the cause so the pumps been replaced an the engines gone back into the ski the oil pump has been bled an is all good but there is no oil in the lines from the oil pump to the carbs do I need to pull them off an bleed them individually or will they fill up when I use the ski next I'm going to run a pre mix for the first few hours anyhow but I'm a bit nervous as its cost a fortune to rebuild. Thanks
    my suggestion since you so nervous. get rid of the pump and premix. will save you dollars on the long run.

  5. #5
    Almost's Avatar
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    Quote Originally Posted by mikegp View Post
    my suggestion since you so nervous. get rid of the pump and premix. will save you dollars on the long run.
    IDK about saving money, you definitely go though more oil premixing. I hope you didn't buy a new oil pump they go for almost $300. There is a ton of good used ones out there because most switch to premix for peace of mind. Would have been much cheaper to buy a block off kit and could have used the money saved to buy cases of oil.

    Edit: I have a spare oil pump to if anyone wants it. I can't get rid of it.

  6. #6
    mudslanger's Avatar
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    Actually you should use less oil premixing. the oil injection uses more unless your cable is out of adjustment. even at 32-1 ratio premix you use less. but 40-1 ratio is the mix most are using. keep in mind these ratios are saying for 40 gallons of gas mix 1 gallon of oil witch is 40-1.

  7. #7

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    Hi all I bought a second hand oil pump from America had it shipped to the uk was like new. Things like that just are not easily available here no one breaks skis to sell as parts. I probably should have just removed the oil pump but didn't think of it at the time. The engine is all back in now fully assembled so now I can't get to the oil pump without taking the front of the exhaust off so any suggestions how to prime the oil lines an easy way. Could I use a syringe and push the oil down the bleed screw? To the carbs. I've tried pumping the throttle an I can see a little in the oil lines from the pump to the carb but there's still a lot more air in the lines than oil

  8. #8
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    Quote Originally Posted by mudslanger View Post
    Actually you should use less oil premixing. the oil injection uses more unless your cable is out of adjustment. even at 32-1 ratio premix you use less. but 40-1 ratio is the mix most are using. keep in mind these ratios are saying for 40 gallons of gas mix 1 gallon of oil witch is 40-1.

    WIth a variable ratio oil injection, there is no way in hell you use more oil with injection than with premix. When the engine is at idle speed, the pump throttles the oil back to something like a 100:1 ratio, running to around 40:1 or a little more at top end. My experience with oil injection is that you use roughly half the oil that you do premixing.

  9. #9
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    Quote Originally Posted by BryanP View Post
    Quote Originally Posted by mudslanger View Post
    Actually you should use less oil premixing. the oil injection uses more unless your cable is out of adjustment. even at 32-1 ratio premix you use less. but 40-1 ratio is the mix most are using. keep in mind these ratios are saying for 40 gallons of gas mix 1 gallon of oil witch is 40-1.

    WIth a variable ratio oil injection, there is no way in hell you use more oil with injection than with premix. When the engine is at idle speed, the pump throttles the oil back to something like a 100:1 ratio, running to around 40:1 or a little more at top end. My experience with oil injection is that you use roughly half the oil that you do premixing.
    yea what he said. premix the first tank. should anyway. then ck lines to make sure all is good

  10. #10
    04gtxsc's Avatar
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    Agree premix the first tank at 32-1 and that covers you till the oil gets p in the lines. You will smoke more than normal but that will just kill the mosquitoes.

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