It may hinder performance. We stress the importance of a good, name-brand gasoline." mercury outboard 2 stroke engine, with loss of power and no head gasket on the motor, what - Answered by a verified Marine Mechanic We use cookies to give you the best possible experience on our website. Re: High octane fuel in Yamaha 2 stroke. From a cost perspective, a 4-stroke outboard is far more fuel efficient than a 2-stroke. Oct 18, 2005. LECTURE- 2 TWO STROKE AND FOUR STROKE ENGINES, WORKING PRINCIPLES two stroke engines What octane gas is best to use for a two stroke outboard motor.Two-stroke oil - WikipediaHonda Engines | GX630 4-Stroke Engine | Features, Specs, and Model InfoTwo-Stroke TUNER'S HANDBOOK - AMRCABing: two stroke engines How Does a 2 Stroke Engine Work . We fielded a question on our Facebook Page asking what the recommended octane is for our outboards. Yes. XD50 SYNTHETIC BLEND 2-STROKE OUTBOARD OIL. 21214 Revitalizes Fuel System 6. 11-19-2010, 07:59 PM. Current recommendations are to use a minimum of 87 octane, 89 octane is preferred. most outboards (excluding high performance) recommend using basic 87 octane. (87 Octane) Oil Type: Genuine recommended 2stroke engine oil (TCW-3) Fuel Tank: 25 L (6.6 US Gal.) In fact, it's so dirty that poor performance can often be cured simply by stepping up to 89 octane. Dose the fuel with a carbon-cleaning additive or fill the tank with 89-octane or higher fuel.. The circuit had never seen anything like itand the V MAX SHO quickly became the pro anglers' power of choice. It brought four-stroke efficiency to the two-stroke world of competitive fishing. 60 amp / 756 watt (Belt-Driven) Recommended fuel. The owner's manual may also specify a minimum fuel octane rating. Yeah, you need to run the lowest octane your motor was designed for - that's 87 for most outboards. Another important step is never to burn 87-octane gasoline. Octane questions aside, one thing everybody agrees on is the importance of buying quality fuel. My service manual covers DT150, 200 and 225 motors, all the specs show the motors to be just about the same except the compression ratio. It depends on the model, but Chris provides some insight . This blend is typically dirty beyond belief. Find a Distributor; Overview; Features; Specifications; Downloads; . It's best to use ethanol-free gas in small engines. STA-BIL 22240 Marine Fuel Stabilizer 3. Minimum required octane for all yamaha outboards (except F250 and F350 89 octane) is 86 octane. PERFORMANCE TO THE MAX 60-HP TO 250-HP . The fuel efficiency of a 4-stroke motor can be 50% better than that of a 2-stroke motor with the same HP. Just one treatment reduces engine knock, improves ignition and helps fuel burn cleaner. Such use may also damage metal, rubber, and plastic fuel system components. Motor runs fine on that and not really very smokey. #3. SmartCraft Engine Guardian. Re: What octane gas is best to use for a two stroke outboard motor. The following is directly from the owner's manual for my 2001 90 hp Johnson 2 stroke outboard: "Your outboard is certified to operate on unleaded automotive gasoline with an octane rating equal to or higher than that specified in Minimum Octane chart." From the "Minimum octane" chart: 87 (R+M)/2 AKI. STAR BRITE Star Tron Enzyme Fuel Treatment 4. Using a fuel with percentages of ethanol or methanol greater than 10% may cause . 01-12-2014, 10:22 PM. Separate Fuel Tank . Use XD50 for reduced smoke, reduced maintenance and increased reliability in any Evinrude and Johnson outboard. Pre-Mix Models. "We recommend 87 octane for both our two- and four-stroke motors. You need to add GALLONS of liquid to bring . Which is better 2 or 4 stroke outboard? They're quieter than 2-strokes, with the lower pitch of the motor being less of a nuisance. Similar threads J Horsepower recommendation for 1996 Nitro 170 Rick clunn edition Jody Pope Apr 18, 2022 Motors & Props Replies 11 Views 599 Jul 10, 2022 NitroAdmin N ;(2) use 89 octane only; (3)use only Mercury Premium Plus 2-Cycle Outboard Oil for the 50:1 mixture and (4) always add OMC 2+4 Fuel Conditioner in the appropriate proportions to the fuel tank whenever adding gasoline. Being that most fuel stations only carry 87 octane that is the closest you can get. Re: Can you add Octain Booster to fuel on a outboard motor. Start Your Engines! 85 octane for the 150 HP, 89 for the 200 and 91 for the 225. Prevent carbon accumulation on your outboard by lubing with TCW-III, or adding a carbon-fighting additive to the fuel. The manual says 87. You will bun 87 octane far easier than 92. Hendrickson Fuel/oil ratio: 50:1 (50 parts fuel to 1 part oil) Bottom line: Use the cheapest gasoline you can find at 87 octane and the cheapest TCW-3 oil. Quote Posted April 9, 2007 i run 93 just seems to run better with higher octane gas for me Quote Posted April 9, 2007 I have ran 91 to 93 (premium) because I was told to by the service person I bought the boat from. The cost savings is considerable. YAMAHA ACC-RNGFR-PL-12 Yamalube Ring-Free 5. Significantly increases engine response and power in two- and four-stroke gasoline-fueled engines. After overheating the 70 hp. That's what the Suzuki service manual says. The outboard of the future. OUTBOARDS. NH, The old 2 stroke can be a cantankerous beast when used for trolling and it is really hard to work out the best way to go as every brand and even models within brands can be different. Because a hotter Spark Plug has a longer insulator nose length, heat transference from the firing tip to the cooling . Recommended oil. On 2-stroke motors, using a higher octane than recommended will not increase performance. Better to stick to 87. Mercury FourStroke Oil 10W-30. There is no additional benefit from using higher-octane fuels, in fact they may cause hard starting conditions in hot weather. "The best thing you can do for any motor is buy gas of known, high quality," says David Grigsby, Yamaha's product manager. Tohatsu 30 2-stroke have a well-earned reputation for incredible power and unprecedented reliability, all at manageable . I was advised to (1)stay away from the "cheapie" gas as found at the local convenience store and only use a "name brand" gas such as Chevron, Texaco etc. The mechanic that fitted it said its best to run 95 octane unleaded. Best Fuel Additive For 2-Stroke Outboards Reviews 1. A 10-micron water-separating fuel filter between the fuel tank and the engine will keep water and contaminants out of the engine. Hi art. Bore and Stroke (in / mm) 3.50 x 2.65in 89 x 67mm: Ignition PCM Digital Inductive: Fuel System 2-stage Direct Fuel Injection (DFI) Alternator Amp 60 amp / 756 watt: 2hp to 20hp - Unleaded Petrol (ULP) - minimum 91 Posted Octane; 30hp & above - Premium Unleaded Petrol (PULP) - minimum 95 Posted Octane; Performance Products will have different requirements, consult your Operation andMaintenance Manual. E85 contains 85% ethanol and must not be used in Honda Marine outboards. 3,949. More than a decade later, it's still . Most users find one 12-ounce (354 mL) bottle for 15 gallons (57 litres) of gasoline provides the ideal performance increase . Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum. The second it hit the water, the V6 V MAX SHO defied all expectations. . Different brands of oil mix different *Pre-mix or injector use with 20wt viscosity A graph is easy to read One of the main core components is the carburetor and jetting two stroke fuel mix merucry 6hp; water pump impeller replacement on mercury 6hp outboard; what gearbox oil for 6hp 2 stroke mercury outboard; what is the correct fuel mixture . Engine protection operator warning system. A low-emissions Merc 150 OptiMax two-stroke is priced at $12,650, while the supercharged four-stroke Mercury 150 Verado is $12,650. Burning 87-octane gasoline in a two-stroke outboard causes carbon buildup that shortens engine life. . Having said that.your compression ratio is a big factor in the octane you can run.for example.any engine up to about 9.5:1 can burn 87 octane fine.from there up to 10.5:1 you will need mid grade, and 10.5 to about 13:1 you have to use premium fuel of a minimum of 92 octane. You must log in or register to reply here. Some high-performance engines may require a higher octane rating than "regular" 87 octane. I have used gas that was five years old and smelled like turpentine. Dismiss. For example, the venerable 2.5-liter V6 Mercury 150 EFI has a list price of $9,925 with a 20-inch shaft suitable for a bass boat. Although using higher octane gasolines are a waste of $, on the other hand, more pricey gasolines have better cleaning solvents than cheaper ones, will clean better, burn better, produce less carbon buil up on pistons & cylinder head specially if you are a non carbon guard products user at all. YAMAHA ACCRNGFRPL32 Ring Free Plus Fuel Additive 7. 150-HP TO 300-HP H.O. club lounge casino 2000 tinder matches washu pnp major. Of course there are different fuel grades in different countries, but my Suzuki mechanic recommends a tank of premium once every 6 months for just the sorts of reasons you mentioned - premium has more additives, cleans injectors, fuel system so thats what he recommends. On the Yamaha side, a 90-hp two-stroke with a 20 . I regularly leave my gas in the tank over the winter with no additives-- The engine always fires right up the next season. Ethanol is also corrosive and burns really hot, which can cause overheating and irreparable damage. The higher the HP, the higher the compression ratio and the higher octane required. Using fuels with percentages of ethanol or methanol higher than 10% may cause starting and/or performance problems. The synthetic blend flows easily even in extreme cold conditions down to 0F . XD50 is suitable for any direct injection, oil injection or pre-mixed outboard that specifies a TC-W3 oil. Compatible with SmartCraft digital technology. Mechanical: 250 hp, 225 hp, 200 hp. Is it even better to run 98 octane through it permanently or could that cause any internal damage, overheating etc cheers dave. Running high octane fuels in an engine designed for low octane fuel can result in incomplete combustion causing excessive carbon and a waste of money. How ethanol affects your equipment. OIL RATIOS - 2-STROKE MODELS. Recommended Oil Mercury OptiMax / DFI Outboard Oil TC-W3: Recommended Fuel 87 octane compatible (up to 10% ethanol) . The crap in the tiny little bottle that says octane booster at most parts stores is completely worthless in anything. If you do decide to use ethanol, don't use a fuel that is more than 10% ethanol (E10), and be sure to add fuel treatment to prevent the fuel from separating. Sea Foam SF-16 Motor Treatment 2. Hi all, Ive got a 2003 125hp Merc (oil-injected 2-stroke) on the boat.