engine won't start

Kyrastar · Post by **Kyrastar** » Sun Sep 28, 2014 5:13 pm

I have a 2007 Buddy 50. It was running great then wouldn't start. It get the swirl noise but just wouldn't start. My son in law finally got it to start for about a minute. Then gas went every where from the carburetor. Soaked the air filter. They are getting carburetor cleaner today. Air filter has dried. ( I going to get a new one anyway). I have been using 2 to one on the gas. Is that wrong? Should I just use just gas? Any feedback would be most helpful.

az_slynch · Post by **az_slynch** » Sun Sep 28, 2014 5:57 pm

The Buddy 50 comes with an autolube system; it should have a separate tank for the two-stroke oil. Unless the autolube oil pump is missing or broken, you should just put gas in the gas tank and 2T oil (specified for autolube systems) in the oil tank.

The "gas pouring out of the carburetor" problem sounds like a stuck carb float or float needle. Could also have a piece of debris keeping the float needle open.

TVB · Post by **TVB** » Sun Sep 28, 2014 8:22 pm

Are you saying that you've been giving it a mix of 2 parts gas to 1 part oil? That's way too much oil.

The cap for the oil tank is under the seat, a bit to the right of the cap for the gas tank. It holds a quart of oil, which lasts several hundred miles; there's a light on the speedometer that should alert you when it's low. So just fill that up, then put regular straight gasoline in the gas tank.

k1dude · Post by **k1dude** » Sun Sep 28, 2014 10:56 pm

With that much oil being burned (yikes!), check your plug. It may be fouled.

Kyrastar · Post by **Kyrastar** » Sun Oct 12, 2014 2:53 am

They told me one gallon of gas to add one bottle of 2 stoke oil the 2.6 Oz size. I ask why was told because it's a 2 stoke engine. I'm glad I ask ya'll.

ScooterDave · Post by **ScooterDave** » Sun Oct 12, 2014 5:40 am

Kyrastar wrote:I have been using 2 to one on the gas. Is that wrong? Should I just use just gas? Any feedback would be most helpful.

I am sorry, I just threw up a little bit from laughing very hard.

My feedback is this.

1. Buy a new decent spark plug like NGK and replace it.
2. If you are premixing using the little bottles of 2 stroke oil - STOP & THROW THEM AWAY NOW or give them to a neighbor that has a gas weed whacker.
3. Buy a decent 2 stroke oil like Klotz.
4. Whoever the "they" are that you refer to that gave you that ratio, "they" are absolute morons. This aint your grandpappys Cushman. (Yes, I know Cushmans were 4 stroke but, you get the point)
5. Clean the carb. Meaning take it apart completely and soak it and put it back together.

I am not a fan of the autolube systems on scooters. They fail and scooters sieze. I premix on my autolube 2 stroke bikes. As the Buddy 50 has no clutch, it will be a wild ride when your rear tire locks up in traffic. The absolute best case scenerio when a bike with no clutch siezes is that you are buying new underwear. Worst case is that you just locked up your bike in traffic and the car behind you is following too close and well....

It should be a 50:1 ratio. I am not 100% but that should be a safe ratio. If you are premixing and you are not sure about how much oil to add, buy an oil measuring cup. Any larger motorcycle shop will have them. Again, if you are premixing, only put 1 or 1.5 gallons of gas in at a time so you can get a correct mixture.

Kyrastar · Post by **Kyrastar** » Sun Oct 12, 2014 3:38 pm

Ok....so 50:1 oil to one gallon of gas. You were right the spark plug was yucky. Now on to find a NGK C7HSA or BP7HS NGK. Then I have to figure a way to get 2 screws out of the side crowl to replace the headlight. These darn screws you can't see. But Thank You very much!

az_slynch · Post by **az_slynch** » Sun Oct 12, 2014 5:17 pm

There are other details to going off the autolube system.

It is generally a good idea to remove the autolube pump and install a blank-off plate to prevent the pump from failing due to a lack of oil passing through it. Since the oil pumps are gear driven from the crankshaft, simply running the pump dry isn't recommended. Even the old Vespa guys take their pump drive out when they disable their autolube system.

The second recommended change would be to up-jet the carburetor. The original jetting of the carburetor only accounts for gasoline when sized at the factory. When oil is added to the fuel, it changes the fuel/air mixture ratio to a slightly lean bias. I believe that the stock jet is a #75. I think the stock carburetor is a Keihin PB, so you could try Treats for a larger jet. A #77 or #78 jet should work fine.

One last item: Using the term "2 to one" is legitimate if you're using a measured mixture cup. Most older mopeds came with a cup mounted under the gas cap or in the tool kit. The older Vespas came with the mix cup too. You'd pour in a cup (or two, depending on the cup size) for each gallon of gas. This would net you a 50:1 mixture of gas and oil.

PeteH · Post by **PeteH** » Mon Oct 13, 2014 2:03 pm

Let's hope the OP meant 2 [ounces] to 1 [gallon]. Those little 2.xx ounce bottles at least get you to 50:1, or 2%.

Kyrastar · Post by **Kyrastar** » Mon Oct 13, 2014 9:37 pm

Ready for a test start. New spark plug, carburetor cleaned. Will it hurt to just use straight gas to see if it will start?

ScooterDave · Post by **ScooterDave** » Mon Oct 13, 2014 11:30 pm

Kyrastar wrote:Ready for a test start. New spark plug, carburetor cleaned. Will it hurt to just use straight gas to see if it will start?

Allow me to answer your question with a question.

Do you really want to buy a new top end when the engine siezes?

Kyrastar · Post by **Kyrastar** » Tue Oct 14, 2014 4:30 am

I'll take that as a NO....Thanks ya'll. Wind here was awful today , so will try tomorrow.

Modern Buddy

engine won't start

engine won't start

Re: engine won't start