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Fuel consumption for yammy 130
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Thread: Fuel consumption for yammy 130

  1. #1

    Fuel consumption for yammy 130

    I have a boat southwind 5.5 with 130 2s yammi. Its consume about 1.7l of fuel per km, travelling at 4300rpm, 42 km per hour. Is the consumption right? Thanks

  2. #2
    Ausfish Silver Member
    Join Date
    Oct 2004

    Re: Fuel consumption for yammy 130

    Pajeromamo
    1.7 L/km=3.2 L/nm. I use about 1 L/nm with my 140 fourstroke on a 5.6 m halfcabin. This does seem a little thirsty even for a twostroke. Cheers Winston.

  3. #3

    Re: Fuel consumption for yammy 130

    Going by my experience with a 115 yami those figures don't surprise me although thats a lot of drinking. Anything less than 4000 rpm or over about 4600 will see those figures look even worse.

  4. #4

    Re: Fuel consumption for yammy 130

    5.5m Cruise Craft 150hp Evinrude carby 2 stroke, approx 1L to 1km at 4200 rpm 40km/h in good conditions.
    BOAT really does mean Bring out Another Thousand

  5. #5
    Ausfish Platinum Member honda900's Avatar
    Join Date
    Apr 2006

    Re: Fuel consumption for yammy 130

    Yalta 555HC, Yam 130.

    Flat day .7 Litres per KM. 4200rpm at 42KPH

    Offshore 1 litre per KM. Variable RPm

    its was thirsty in swell, on and off the throttle.


    Regards
    HOnda.

  6. #6
    Ausfish Platinum Member FisHard's Avatar
    Join Date
    May 2011

    Re: Fuel consumption for yammy 130

    1.7l per 1klm @ 42kph = nearly 80L per hour! I doubt that a 130 Yammie could use that much per hour at full noise. I would say around 1L per Klm at cruise would be more like it. Somethings wrong with either your figures or the motor.

  7. #7
    Ausfish Platinum Member timddo's Avatar
    Join Date
    Apr 2006

    Re: Fuel consumption for yammy 130

    i think he means 1L per 1.7 km. I average about a mile a litre on my 115hp so the 130hp can't be that bad.
    My boats sweat spot is 24knots for 24 litres at 4000rpm. But once you hit the throttle it's goes up.

  8. #8
    Ausfish Silver Member
    Join Date
    Oct 2004

    Re: Fuel consumption for yammy 130

    timddo, I don't think so. 1L/1.7 km = 1.1 L/nm. If that were the case, I would never have opted for the fourstroke. In fact, fourstroke outboard motors would never have been developed. Cheers Winston.

  9. #9

    Re: Fuel consumption for yammy 130

    Have Yam 130 2st on a 1989 Haines Hunter 560 with extended pod and fuel flow monitor hooked up with Lowrance Global 7200C. Consumption varies with conditions & trim of motor and trim tabs. Routinely average around 1.2km per litre typical trip to Hutchies /Cape /Tempest etc @ 40-50kph. There is no sweet spot in the rev range. It all depends on craft, set up & conditions. Often find best consumption is @55kph approx 5,500rpm if conditions flatish. Can max up to 1.8 km/L but last trip was a shocker with steep short swell out & back for abt 0.8km/L = $200+ & not a scale
    Your readings seem a bit high, though also appreciate mine will guzzle big time if not 'up', balanced & swing'in happily.
    That said, cheap to service, almost bullet proof, simple & reliable. A great 2-banger!!
    MalM

  10. #10

    Re: Fuel consumption for yammy 130

    I have really good fuel figures on my 130 2 stroke with my Lowrance fuel flow meter

    I average 1.2 klm per litre, and can get as good as 1.4 klm per litre in favourable tides / swell etc and the clears window down. Flat out I can now get 1 klm/litre at 6000 rpm, since I defied Solas and other prop people and went with the opinion of Colin at Performance Props and put a 13 1/2 x 13p solas 4 blade prop on. Everyone else was trying to sell me 15" or 17" pitch props that were overpropped, and costing me fuel economy. I lost5 knots of top end speed that I never use, to gain about 30% fuel saving / km.

  11. #11

    Re: Fuel consumption for yammy 130

    Thank you for your contributions, I think the problems could the the prop and/or hydrofold, the max rpm for the engine is only 5400. I may have to check with Colin at Performance Props.

  12. #12
    Ausfish Bronze Member
    Join Date
    Nov 2008

    Re: Fuel consumption for yammy 130

    I have a 2008, 610 Ozcraft centre cab with a 130 yammy , I get approx 1 - 1.6 Kms per litre depending on conditions and load .

    I have the standard yammy prop still on .

  13. #13

    Re: Fuel consumption for yammy 130

    Quote Originally Posted by shane450 View Post
    I have a 2008, 610 Ozcraft centre cab with a 130 yammy , I get approx 1 - 1.6 Kms per litre depending on conditions and load .

    I have the standard yammy prop still on .
    That is very good. I would be happy with 1-1.3 kms. My prop is a stainless steel prop with a word 17 k. I wonder what is 17 k ?

  14. #14
    Ausfish Platinum Member timddo's Avatar
    Join Date
    Apr 2006

    Re: Fuel consumption for yammy 130

    I thought your rpm is 5500 to 6000

  15. #15

    Re: Fuel consumption for yammy 130

    Hi folks. this is my first post on this site so please be gentle.
    At the risk of being guilty of a bit of thread drift, i pick up my new stejcraft 640c on Thursday and it has a yamaha 130 on the back. Just curious how much of a running period will be required as this is my first brand new O/B. I know it will be in the manual which i will read thoroughly but just curious in advance.

    Stay safe and fish hard

    Regards Hossfish

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