I have a 50hp 2007 yamaha 2 stroke

REDUX 1.
Why in the world post an engine and NO car told, yes 2002
DEAD WRONG IT HAS BOTH.!! VIN F TOO.

the CMP and CPK sensors both must be good and cam actually turns and cam timing in spec or the ECU cuts spark then cuts fuel..



cmp goes to icm and icm to pcm.2002 Ecotec 2.2 DOHC. no VIN F IS 2.4L AND VASTLY DIFFER\ENT

I GUESS this car. # below Cavalier.
2002 Chevrolet Cavalier 140 hp (104 kW) @ 5600 rpm 150 ft?lb (203 N?m) @ 4400 rpm 10.0:1

SEEMS i GUESSED RIGHT , TOP OF LIST, AND NOW VIN F TOLD.

2003-2005 150 ft?lb (203 N?m) @ 4000 rpm link
2005-2006 Chevrolet Cobalt 145 hp (108 kW) @ 5600 rpm 155 ft?lb (210 N?m) @ 4000 rpm 10.0:1 link
2006 Chevrolet HHR 143 hp (107 kW) @ 5600 rpm 150 ft?lb (203 N?m) @ 4000 rpm 10.0:1
2004 Chevrolet Malibu 145 hp (108 kW) @ 5600 rpm 155 ft?lb (210 N?m) @ 4000 rpm 10.0:1
2005-2006 144 hp (107 kW) @ 5600 rpm link
2002-2004 Oldsmobile Alero 140 hp (104 kW) @ 5600 rpm 150 ft?lb (203 N?m) @ 4000 rpm 10.0:1
2002 Pontiac Grand Am 140 hp (104 kW) @ 5600 rpm 150 ft?lb (203 N?m) @ 4400 rpm 10.0:1
2003-2005 150 ft?lb (203 N?m) @ 4000 rpm link
2002 Pontiac Sunfire 140 hp (104 kW) @ 5600 rpm 150 ft?lb (203 N?m) @ 4400 rpm 10.0:1
2003-2005 150 ft?lb (203 N?m) @ 4000 rpm link
2005-2006 Pontiac Pursuit/G5 145 hp (108 kW) @ 5600 rpm 155 ft?lb (210 N?m) @ 4000 rpm 10.0:1
2000 Saturn L-Series 137 hp (102 kW) @ 5800 rpm 135 ft?lb (183 N?m) @ 4400 rpm 9.5:1
2001-2003 135 hp (101 kW) @ 5200 rpm 142 ft?lb (193 N?m) @ 4400 rpm
2004 140 hp (104 kW) @ 5600 rpm 150 ft?lb (203 N?m) @ 4000 rpm
2003-2006 Saturn Ion 140 hp (104 kW) @ 5800 rpm 145 ft?lb (197 N?m) @ 4400 rpm 10.0:1 link
2002-2005 Saturn Vue 143 hp (107 kW) @ 5400 rpm 152 ft?lb (206 N?m) @ 4000 rpm 10.0:1 link
2006 143 hp (107 kW) @ 5600 rpm
2007 144 hp (107 kW) @ 5600 rpm
2001-2005 Opel Speedster / Vauxhall VX220 147 hp (110 kW) @ 5800 rpm 150 ft?lb (203 N?m) @ 4000 rpm
2001-2006 Holden Astra (TS) 147 hp (110 kW) @ 5800 rpm 150 ft?lb (203 N?m) @ 4000 rpm


THIS IS THE 2.2L NOT 2.4L SO NOW i HAVE BOTH PRESENTED

Hey Spencer,
Its time for a complete carb cleaning and setting by a qualified professional... When you say ran fine out of water.. you DID have the "ear muffs" connected to provide water to cool the engine..?? If you DID NOT.. you MAY have more serious issues. Take this to a qualified pro!!

One cylinder may be starved for oil causing the noise your hearing.

Mary, you have to give a lot more information as to make , model , year, 2 or 4 stroke,capacity before anyone can answer this
modern 2 stroke engines use a metering pump for the correct oil/fuel ratio and it is not premix
and what is wrong that you need starter fluid in the first place
post again with all the information and some one will be able to help

i have had this on mine and it was a sort of insect that made a mud nest in the small hole and it blocked the hole up ,try poking it out with a bit of wire

clean your carbs etc !! fit a water fuel seperator inline from tank to stop problems !

If the bike has sat for a long period of time without being run - the gas that is sitting in the carb(s) will shellac.. Then the carb(s) would need to be cleaned and "rebuilt"..

sounds like you are going to have to pull carbs off and clean jets also check tank and line for debries

If it has the old points system you will need to set the points also adjust the carburatior screw the screws all the way in and back out 2 1/2 turns then get it to run turn the air mixture screws till it runs smooth. you want it slightly lean then enrichen it slightly, afterword shut the engine down and look at the plugs if they are gray black they are ok. good luck.

This could be one of several problems...
• Last year's fuel. Get some fresh gas.
• Every 2-stroke needs a new spark plug each year... you know what that means.
• Clogged carb jets due to storing the tiller over the winter with fuel in the system. Never, ever do that. Now you'll need to pull the carb apart and clean it. Most of the orifices are so tiny you can't see them. Good luck.
• Engine is so old the crankshaft seals have hardened with age. This is one reason no 2-stroke lasts longer than about 8 years. If the seals are shot, then it will cost more to fix than a new one costs. Time to toss it.