|
|
Post by cornfead35oh on Nov 11, 2019 17:55:45 GMT -5
I rebuilt carb and now my 2 stroke 100cc atv Boggs down when I throttle it. Please help.
|
|
|
|
Post by aeroxbud on Nov 12, 2019 1:53:01 GMT -5
Welcome to the forum.
Why did you rebuild it? Was it running ok before?
Nine times out of ten it's a blocked jet. Did you take all the jets out. Then blast them with carb cleaner? Making sure all the passage ways are clear.
Is the intake sealed correctly? No holes. Two Strokes hate air leaks.
|
|
|
|
Post by cornfead35oh on Nov 12, 2019 6:29:52 GMT -5
It sat in a garage for 10 years. I did notice cracks in the intake pipe. I will have a new one in a few days, hope that works.
|
|
|
|
Post by SMALL CC TEK on Nov 12, 2019 14:26:18 GMT -5
Welcome to the forum. Why did you rebuild it? Was it running ok before? Nine times out of ten it's a blocked jet. Did you take all the jets out. Then blast them with carb cleaner? Making sure all the passage ways are clear. Is the intake sealed correctly? No holes. Two Strokes hate air leaks. All that is good advice ! So you completely tore it down ran wire through all the jets used air and purged them or shot carb cleaner through them stick them up to a light and see if you see the light through them . Did you clean and purge the lines be for you hooked it up again? If your tank was dirty and your line had garbage in it the first time you reinstall it all that garbage goes in your float bowl and you will have the same issue all over . Just asking because it is a common mistake that everyone makes at least one time in your scooter career lol I did it once on a 4 wheeler and it took me 20 minutes to remove the carb so that made me purge lines immediate after i pull the carb and clean tank first ! Now standard procedure for me lol  |
|
|
|
Post by cornfead35oh on Nov 13, 2019 18:28:41 GMT -5
I'm at a lost. Installed new intake pipe, it ran great for 10 minutes even drove it around the yard. It's back to bogging down at full throttle with a new carb. Please help!!
|
|
|
|
Post by Kenho21 on Nov 13, 2019 19:55:58 GMT -5
Have you replaced the fuel filter? Sounds like your carb keeps getting clogged or something of that nature. If it sat for 10 years, I wouldn’t doubt your rank needs a cleaning and the entire fuel delivery system needs replacing or cleaning as well.
|
|
|
|
Post by repherence2 on Nov 13, 2019 20:12:57 GMT -5
If the atv has a vacuum operated petcock for the fuel, it might be that the petcock is no good. Transparent fuel lines are good to check for flow or air bubbles in the fuel lines.
|
|
|
|
Post by cornfead35oh on Nov 13, 2019 20:24:23 GMT -5
I've cleaned everything out and installed new lines.
|
|
|
|
Post by Kenho21 on Nov 13, 2019 21:58:40 GMT -5
If the atv has a vacuum operated petcock for the fuel, it might be that the petcock is no good. Transparent fuel lines are good to check for flow or air bubbles in the fuel lines. Good point. Have you disconnected the field lines from and sucked on the vacuum to at least make sure you’re getting some flow? |
|
|
|
Post by cornfead35oh on Nov 14, 2019 5:21:25 GMT -5
I have 3 lines coming off the petcock. 2 to the gas tank and 1 to the carb. I have good fuel flow. Could it be the reef on the intake ?
|
|
|
|
Post by dexameth on Nov 14, 2019 10:53:31 GMT -5
I have 3 lines coming off the petcock. 2 to the gas tank and 1 to the carb. I have good fuel flow. Could it be the reef on the intake ? You should have one line from tank, one line to carb, and one line from VACUUM to operate the valve. Sounds like the carburetor isn't getting sufficient fuel flow - you are basically idling on fumes and when you throttle you are leaning out. |
|
|
|
Post by cornfead35oh on Nov 14, 2019 13:00:01 GMT -5
Is there something in the tank? Like i said 2 lines go to the tank, one to the carb.
|
|
|
|
Post by cornfead35oh on Nov 14, 2019 13:18:41 GMT -5
The fuel is gravity fead and the other line is reserve fuel.
|
|
|
|
Post by cornfead35oh on Nov 14, 2019 13:19:47 GMT -5
I get good gas flow, Should i change the MJ ?
|
|
|
|
Post by repherence2 on Nov 19, 2019 20:53:57 GMT -5
You never told us that the air box was not installed... problem #1.
|
|
