Blaster Fuel issues I think

[offroadenemy]

This weekend I was riding my blaster and it started bogging down like it was out of gas, so I switched it over to reserve and it still was bogging. It would idle but once I gave it some gas it would bogg down again. I pulled the hood open and noticed that the stock fuel filter was only about half way full. I started it up with the hood open and it drains all the fuel out and then slowly refills. I am thinking it is time to rebuild the carb with the fuel pump in it but just checking to see if it could be anything else.

 

[mayhem321]

There is also a tiny fuel filter in the carb that clogs, mine was doing that, not near as bad but it was the carb filter

 

[score602]

the ethanol in the fuel makes this nasty powder that cloggs up that little screen before the n/s

 

[Patrick Star]

I had a phantom carb issue like this on my B1. It started slow but got progressively worse. It was ethanol goop in the filter/separator, sprayed it out with carb cleaner and all has been well.

 

[mayhem321]

Use Startron or the blue gas treatment stuff it's safe for 2 strokes and removes water and the ethanol from your gas

 

[Patrick Star]

I'm happy to hear the Startron does so well. I have some but haven't been able to ride as of late.

 

[mayhem321]

I'm happy to hear the Startron does so well. I have some but haven't been able to ride as of late.

Ya good stuff, I feel ya on the not riding, I has knee surgery two weeks ago so I'm out for the whole summer. And I just rebuilt my whole blaster

 

[Screwy]

that sucks for sure

 

[CJ407]

Check valve!!! Mine does that when it goes bad

 

[offroadenemy]

What is the check valve?


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[Patrick Star]

Mine was bad when I just checked it. Let air go both ways.

EDIT: nevermind, I mean the tank vent

 

[offroadenemy]

is that those little clear circle pieces in the the pump part of the carb?

 

[wanderer1]

is that those little clear circle pieces in the the pump part of the carb?

Yes those are the carb check valves, the above poster is talking about the check valve on your tank. It sounds like yours might be bad. Check it to make sure it is not letting air out

 

[offroadenemy]

so I should only be able to blow air in but not out of the vent

 

[wanderer1]

so I should only be able to blow air in but not out of the vent

air should be able to travel the direction of the arrow only

 

[taylor2000]

ok now damn it i need help. 701 bought it ran it for a day and fuel problems filter wont stsy full moreless empty dump fuel down carb runs fine till burns off. so me and dad rebuilt the carb. once again two runs later fuel problem again. those flat disks in the pump part. the instructions say ne side is rounder and goes against carb. well they looked flat on both sides. and so they put a blue line on one side to help show the round side. in which you cant tell that either. blue line looks like it on both sides. so we pretty much took a guess. damnit man. is that the valve your talking about?? damn jet ski. the 760 runs so much better with no problems. i wanna sale the whole motor just so i dont have to deal with it.

 

[offroadenemy]

ok now damn it i need help. 701 bought it ran it for a day and fuel problems filter wont stsy full moreless empty dump fuel down carb runs fine till burns off. so me and dad rebuilt the carb. once again two runs later fuel problem again. those flat disks in the pump part. the instructions say ne side is rounder and goes against carb. well they looked flat on both sides. and so they put a blue line on one side to help show the round side. in which you cant tell that either. blue line looks like it on both sides. so we pretty much took a guess. damnit man. is that the valve your talking about?? damn jet ski. the 760 runs so much better with no problems. i wanna sale the whole motor just so i dont have to deal with it.

Does it run at all or does it just idle and then when you hit the throttle it boggs down?


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[taylor2000]

thanks for the response kinda stealing his post. im on the new post under fuel tank pressure. but we might be having same issue. some one was talking about that check valve. Is it the one on top of the tank connected to the seperater. the crazy thing is i have to blasters and you can blow through them both and the other ski runs great. but my ski will run or bog adjusted the carb this weekend but lost the fuel in filter once again. now its a bitch to prime. so is it a fuel tank issue?

 

[offroadenemy]

So it won't run at full speed at all it just idles and bogs when you hit throttle?


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[taylor2000]

id say when i rebuilt that carb i seen a tear in the diaphram that pumps the fuel but now i wonder if it is the check valve. wont know for a few days.