Yamaha 80 HP 2-stroke - timing - iboats Boating Forums
2008年11月28日 · Re: Yamaha 80 HP 2-stroke - timing cant help much other than to tell you ign timing isnt your smoking problem. aeto will indicate its either an 84 or 85 US market motor or an non US market motor. you will find idle timing in the 5*atdc range and WOT timing in …
Yamaha 2-stroke 50HP 1980's bogs and not reaching max RPM
2023年8月19日 · Hello, Hoping for some helpful tips to get my 50 HP Yamaha autolube 2-stroke outboard from 1985-ish going like a champ again. Engine starts quite easily, it can idle, I can reach max RPM at idle (not in gear). But in gear, the outboard at first try from cold, today reached 1/2 to 2/3 of full...
Yamaha 80 2 stroke no oil injection - iboats Boating Forums
2023年4月27日 · I have the opportunity to buy a Yamaha 80 hp 2-stroke that has no oil injection, you must pre mix oil and gas. The seller says the sticky foil sticker with model info is gone. He thinks the engine is a 2002 "commercial" engine. The motor is several states away, so i can't examine it until i get...
Yamaha 70 2 stroke vs 75 2 stroke - iboats Boating Forums
2017年9月11日 · Hey guys, my boat is rated for a 75hp. I noticed that the 70hp 2 stroke has a block displacement of 51.8. The 75hp steps up BIG to a 69.6 block, which is the same block as the 90hp. For an extra 30lbs of weight it seems very worth it. Here is the issue. I have a very nice 70hp Yamaha that...
Yamaha 80HP 4-stroke | Boating Forum - iboats Boating Forums
2005年10月24日 · Re: Yamaha 80HP 4-stroke The 80 and 100 HP engine (1596cc) back in 2002 are the same engines used today on the 75 and 90 HP (1596cc). Only difference is the newer 75 and 90 are EFI and about 15 lbs heavier. Both the 80 and 100 HP engines were excellent, and obviously good enough for Yamaha to keep onboard and update.
Absolute Max RPM's on 2 stroke - iboats Boating Forums
2006年5月6日 · Re: Absolute Max RPM's on 2 stroke where are you getting your reed stop information?<br /> as long as its cooling and lubricating two strokes love RPM until the point that the wristpins cannot stop and then accelerate the piston.<br /> I would double check that the tach pole setting is correct.<br /> the yamaha 90 2 stroke should be set for 12 pole/6 pulse. if its set on anything else the ...
Advice on Compression Test - 2004 90hp Yamaha TLRC
2016年11月24日 · I'm looking at buying a boat with a 2004 90hp Yamaha TLRC. When I checked out the boat my Compression tester showed 90# top cylinder, 90# middle and 60# on the bottom. I assumed the motor had issues and left. Next I looked at another boat, again a 90HP Yamaha and again off on compression.
What oil do you use in your Yamaha 2-stroke - Boating Forum
2011年6月29日 · Re: What oil do you use in your Yamaha 2-stroke I've run WalMart outboard motor oil in a 1990 SeaDoo PWC and a 1985 Yamaha 115 hp 2 stroke motor, and they both continue to run great. The last time I cleaned the head on the SeaDoo, it was completely clean (without carbon.) As long as the oil meets the industry standards, I'll keep on using it.
yamaha 70 hp 2 stroke my 2010 buying advice - Boating Forum
2010年1月4日 · In the US Yamaha are replacing their 90 hp 2-stroke with a 70 hp 4-stroke. The new models should arrive in April/May 2010, I hope, as I have pre-ordered 2 of them. I'm replacing two 85 hp 2-strokes with them, as I'm only using 40% of the fuel on another boat that I have for my dive business, when I switched from a 250 hp 2-stroke to a 200 hp 4 ...
Yamaha 80 hp 4 stroke overheating - iboats Boating Forums
2011年6月19日 · Re: Yamaha 80 hp 4 stroke overheating i have also looked at the pressure control valve, it seems to be fine. spring is good and tight and the plastic plug doesn't stick in the rubber grommet. i am at a loss as to what to do.