What is the oil to gas ration on an 1975 50HP Johnson Outboard Motor?
342186
You will be ok with 40:1...in fact you're probably ok with 50:1 as todays oil and gas are far superior to 1975's. I used to run my 1963 Johnson 18hp at 50:1 for years without a problem...start with 40:1 and if you foul then clean your plugs and go a little leaner. Also, I recommend either penzoil or merc oil but make sure it says tcw on the label. good luck!
212405
You will need at LEAST 108 octane fuel to properly power a 15:1 compression engine without damaging it. I'll paste more info below and give you a link to VP racing fuels.. The fuel color for your engine will be green... Good luck:\n\nVP Racing Fuels, Inc. is committed to being a good corporate citizen in its worldwide operations, being environmentally responsible, and obeying all applicable laws and regulations. VP encourages our distributors, dealers and customers to also be good citizens and obey applicable laws and regulations in the sale and use of VP products.\n\n All VP fuels are available in 5- (19 liter), 15- (56 liter), 30- (113 liter) and 54-gallon (204 liter) pails and drums except where noted.\n\nLook for these icons under each fuel listed to determine if the fuel is recommended for your particular application:\n\nFuels are grouped in the following categories:\n\nLeaded Fuels\n\n    * All-Around Performers with Multiple Applications\n    * Specialty Fuels with Primarily Automotive Applications\n    * Specialty Fuels for Automotive Drag Racing Applications\n    * Specialty Fuel for Controlled Competition\n    * Specialty Fuel for Powerboats\n    * Specialty Fuels for Powersports\n\nUnleaded Fuels\n\n    * All-Around Performers with Multiple Applications\n    * Specialty Fuels\n    * Spec Fuel for Controlled Competition\n    * Fuels with International Applications\n\nOther Specialty Fuels\n\n    * Methanol\n    * Nitromethane\n\nFOR A SPREADSHEET WITH FUEL RECOMMENDATIONS SPECIFIC TO MOTORCYCLES, KARTS, ATVS, WATERCRAFT AND SNOWMOBILES, CLICK HERE.\n\nAll VP fuels are available in 5- (19 liter), 15- (56 liter), 30- (113 liter) and 54-gallon (204 liter) pails and drums except where noted.\n\nMOTORSPORT 105L\nFormulated for stock applications with CRs below 11:1, e.g., Stock Eliminator type racing engines. Offers the benefits and octane of a leaded fuel at a lower cost than more exotic race fuels.\n\n• Color: Orange\n• Motor Octane: 101\n• Specific Gravity: .745-.760 at 60° F\n\n\n\n\nVP RED\nA great standard grade of racing fuel. Used in higher compression race engines up to 13:1, for any application where cost is a factor.\n\n• Color: Red\n• Motor Octane: 105\n• Specific Gravity: .730-.745 @ 60° F\n\n\n\n\nVP-110\nNot your "standard" 110! Highest rated MON of any 110 fuel on the market. Formulated for use in naturally aspirated engines with CRs up to 14:1. Works well in 2-strokes. Good lower cost alternative.\n\n• Color: Purple\n• MON: 107, RON 113, R+M/2 = 110\n• Specific Gravity: .720-.735 @ 60° F\n\n\n\n\nC12\nThe best all around racing fuel made. Recommended for CRs below 15:1, satisfying the needs of 75% of today's race engines. One of the winningest fuels in racing history, including Modified Tour, GNN, D.I.R.T., Indy Lights, NHRA, AMA as well as other local and national championships across the U.S. and around the world.\n\n• Color: Green\n• Motor Octane: 108\n• Specific gravity: .717 at 60° F\n\n\n\n\nTBX\nFormulated for naturally aspirated engines with CRs up to 15:1 in dirt and asphalt circle track applications as well as others. TBX will meet fuel rules of tracks requiring fuels with specific gravity of .738-.742. Can be used with a small amount of nitrous oxide to increase power.\n\n• Color: Blue\n• Motor Octane: NA\n• Specific gravity: .740 at 60° F\n\n\n\n\nAll VP fuels are available in 5- (19 liter), 15- (56 liter), 30- (113 liter) and 54-gallon (204 liter) pails and drums except where noted.\n\nC11\nRecommended for CRs up to 12:1 with restrictor plates and standard flow heads. With unrestricted heads and manifolds and carburetors, C11 works very well to 11:1. Anticipate significant HP and torque increases. Used in NHRA Stock and Super Stock, SCCA and circle track.\n\n• Color: Orange or Purple\n• Motor Octane: 104\n• Specific Gravity: .710 at 60° F\n\n\n\n2BBL\nDesigned for 2-barrel race engines in circle track applications with CRs up to 12:1
497208
No ,there isn't a "chart" or "formula". \n\nHowever, most 55-70LB thrust motors will propel boats quickly, from 14-19 FT long. You would probably need a 55LB thrust motor.If you don't feel confident, ask your local boat salesman/manufacturer.(My first boat was an old 77' 14FT tri-hull/40HP & I had a 40LB motor on it and it worked great; it weighed approx. 1000Lb's)\n\n Try getting a Marine catalog from "Cabelas" & "Bass Pro Shops".
700212
oil immersion goes out to 400x I think.  low and high are 40 and 80 if memory serves.
551941
About 70% of your oil.
834512
Torque is not the right question to ask in this problem!\nFirst define the generator output in terms of watts.\nAssume an efficiency of 0.8 for the generator and define the Input of the generator (In = Out / 0.8).\nThis is the output of your motor (assuming some diesel/petrol).\nTorque is expressed as N/m (force x radius) and is part of the electric generator specs.  See there to get the equivalence.\nUsually, the motor power is also 0.8 efficient, so the motor power should be W / (0.8*0.8) and that will give you the right ratio.
467134
your best bet is to get in touch with the guys who built the motor and know it the best. these guys will tell you the right answer and they wont just be guessing. D.S.S.  Phone: 630.587.1169 or e-mail ecom2000@dssracing.com and here is their website http://www.dssracing.com/
1066005
you didn't say what engine you have inthe boat but most all I/O and inboard engines are car motors with minor modifactions such as cams, stainless steel head gaskets, marine carbs and sparkproof starters and alternators you should be able to find one fairly easily.
464696
I thought it was 4 to 1, but better check your manual ,or the website, they would have more specific info.  Also, the fuel to oil ratio could be pretty generic for that type of engine, so even if you lost your maunual, find the stats for a similar engine and you should be safe.\n\nEdit: lol, better listen to the below poster, 4:1 and 50:1 is a pretty big difference, and I don't want you to send me your repair bill ; )
671928
I wish my husband were home to help you on this one, however I found the manual for his Minnkota Riptide Trolling motor the phone numbers are 1-800-227-6433 or 1-507-345-4623 (technical service departments). I hope this helps a little, they may be able to send you a manual via mail. GOOD LUCK!
243467
if it aint been started in two years u need to drain the old gas out put a new spark plug in if it has a fuel filter change it and a new battery u might put a little gas in the carb but not too much oh and change the oil too with it setting that long
527379
Check eBay motors. They have a section dedicated to parts.
1136335
http://www.ioga.com/Special/crudeoil_Hist.htm\nThat should help.
307807
man, you NEED the cap. youll loose preasure as the revs throw oil all over the engine comartment. fuel, carry gas or fill all the way up before you go. that hyperspace module, is that aftermarket bolt on or did you have to machine the heads & manifold?  thanx, that was fun.
112193
Tune up procedures and diagrams for both Holley and Carter 2 barrel carbs used on Chrysler Corp full size vans in 1983 are here:\n\nhttp://autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/1a/82/5e/0900823d801a825e.jsp
305373
Assuming you are at the track.  Pull into the waterbox rev the engine to 2500-3000 rpm.  Dump the clutch and floor it.  Be prepared to spend $ on repairs...
196183
http://www.nationmaster.com/red/graph-T/ene_oil_pro&b_map=1#