First Four Stroke
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First Four Stroke
Hi guys,
I just got my first 4 stroke from the big brown truck, and I could use some help. It is the Magnum .91. THere is a fuel line on it that is running from just behind the front of the motor to the pipes running up from the carb. Then there is the fuel intake nipple on the carb itself. is that the way it is supposed to be? is there pressure that runs to the muffler?
I am going to run 30% heli through it and run it in tomorrow. Any help would be greatly appreciated.
Sorry I don't know the names to everything yet, still learning.
Tom
I just got my first 4 stroke from the big brown truck, and I could use some help. It is the Magnum .91. THere is a fuel line on it that is running from just behind the front of the motor to the pipes running up from the carb. Then there is the fuel intake nipple on the carb itself. is that the way it is supposed to be? is there pressure that runs to the muffler?
I am going to run 30% heli through it and run it in tomorrow. Any help would be greatly appreciated.
Sorry I don't know the names to everything yet, still learning.
Tom
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RE: First Four Stroke
The line from the front of the motor is a crankcase vent. The line sounds like it is going to the intake, which puts the crankcase drain into yhr intake. This is normal. If there is a nipple on the muffler then this is the pressure. The nipple on the carb is the fuel one.
Cheers.
Cheers.
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RE: First Four Stroke
Got Magnum 52 and 120 FS, both have pressure nipples on the muffler as Ghost suggests. Unlikely the 91 would be different.
Not sure why you would use 30% fuel with this though, 5 - 10% should be plenty.
Terry
Not sure why you would use 30% fuel with this though, 5 - 10% should be plenty.
Terry
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RE: First Four Stroke
I like the oil content which I am told (engine experts set me right please) should be a touch higher to ensure engine life. Plus the diff price wise is only 5 bucks a gallon at my LHS, so why not?
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RE: First Four Stroke
Hmmm, ok so once again not sure what to think. I would consult the directions, but they are all in Chinese, which I don't read. I will try and find some online source. Thanks guys for all the help.
Tom
Tom
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RE: First Four Stroke
i have a mag .61 f stroke
i run cool power 15%
+ i add 2 / 2.5 oz of castor
what the castor does is it makes the oil content 20%
which is recomendedby certain mfg except o.s.
8/9 bucks for a bottle of castor is just a litle piece of mind
and i also run the same fuel in my saito fa .82 f stroke
no problems so far after 5/6 gallons...
i run cool power 15%
+ i add 2 / 2.5 oz of castor
what the castor does is it makes the oil content 20%
which is recomendedby certain mfg except o.s.
8/9 bucks for a bottle of castor is just a litle piece of mind
and i also run the same fuel in my saito fa .82 f stroke
no problems so far after 5/6 gallons...
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RE: First Four Stroke
Follow the Ghost. I have 4 Magnum .91 four strokes and use 15% nitro with 20% oil (Ritches Brew). I use this on all my 2 strokes also. Saito advised me on this fuel some time ago for my Saito 65 and I went with it on everything and have always been happy with the results. The nipple on the crankcase is connected to the fuel intake manifold pipe above the carb with the small flexible tubing included. The nipple on the muffler is for the pressure line to the tank. The nipple on the carb just above the needle valve is the fuel inlet from the tank.
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RE: First Four Stroke
my o.s .52 fs surpass runs just fine on byrons 10 % nitro and 16% oil ....... as far as engine life goes , i run this thing pretty hard on that fuel and have had it a year and a half. it still runs like i just took it out of the box