Starting issues.

[Jimmy james]

Hello,

I have baja 5t and some reason it cut out the other day on the sand dunes. It never happened before so maybe you can help. I will tell you what I have done, couldn’t find anything in the search on the site so here goes.
Check the carburetor for dust and cleaned. Clean the filter in the tank to see if it was blocked as when I prime it, it only goes about to 1/4 full the prime bubble. Spark plug is good checked. But when I prime the bubble in the orange pipe leading to the tank there is bubbles, normal? I have yet to take apart the black pipe leading in the tank to see if that is blocked going into the carburetor. Checked for air leaks with WD 40 but found nothing around the carburetor. I’m thinking of talking the carburetor out tomorrow evening to check more in detail.

Thoughts all

Best

 

[DougStar]

Hey bud?? I would pull the carb off and check the carb isolator make sure its not wrapped and put new gaskets ?? could be a leak and if there was it won't start

 

[Jimmy james]

Hey,
I’m thinking that there is air is getting in from when I prime the bubble. Just been trying it again with the bubble and I hear noise like the air is passing through. If you get me... I will check it out tomorrow in detail if not I need to buy a new carburetor?

 

[KevTrem]

That fuel line looks very dry and empty to say you've primed it, I would have a quick look in the tank to see if fuel filter has come off.

 

[Jimmy james]

No all is in place checked that, maybe the black pipe in the tank has à blockage. Will check it later

 

[KevTrem]

have a quick bend of the black pipe all the way from the tank to the carb to see if you have a split in it.

 

[Seandonato73]

No need for a new carb, stick a kit in it. It's not hard to do. I agree on checking your fuel lines first and foremost. It's hard to check for air leaks if you cant even get it to idle.

 

[1Coopgt]

Hey,
I’m thinking that there is air is getting in from when I prime the bubble. Just been trying it again with the bubble and I hear noise like the air is passing through. If you get me... I will check it out tomorrow in detail if not I need to buy a new carburetor?

That's normal. There is a tiny little vent on the backside of the bulb plate that equalizes the air on the topside of the diaphragm . So that is probably what you are hearing.

 

[Seandonato73]

That diaphragm vent should not be leaking, or allowing air to be sucked Into the carb. Not normal of it is. Thinking about it, there really shouldn't be any air getting sucked through the fuel system in the carb. Some literature for you to read.

 

[JRRC005]

fire it with carb off it does work or carb loose .
i tried it with mine and it scares the poop out of you just make shure you hang on to the car.

 

[Jimmy james]

Ok I will give that a whirl this evening. Should be fun

 

[Jimmy james]

Ok update. Took the carburetor out which you can see in the pictures. Checked the fuel pipes and nothing blocked or ripped. Your thoughts.

 

[DougStar]

Looks like a definite leak .......carb is caked ?

 

[Z.hb71]

Does it have compression? Maybe it sucked in sand

 

[Jimmy james]

Pumping the bubble you mean... sounds dirty

 

[Z.hb71]

Pumping the bubble you mean... sounds dirty

No , when you pull over the motor is their compression?

 

[Jimmy james]

So I need something like this. The full kit
Turn it upside down and pump it you mean...
Ok I turned it upside down pumped it and the prime bubble is now full. Engines repairs are not my strongest point.

 

[1Coopgt]

That diaphragm vent should not be leaking, or allowing air to be sucked Into the carb. Not normal of it is. Thinking about it, there really shouldn't be any air getting sucked through the fuel system in the carb. Some literature for you to read.

Hey Sean what is the little vent for ?

 

[Seandonato73]

It's the atmospheric vent for the metering diaphragm.

 

[Jimmy james]

Cheers for your input lads. I will get a new carburetor to sort it.
Best