Picked up a used BR 430 - wont start.
- Thread starter FredBacher
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FredBacher
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I took the exhaust thing off. The gasket crumbled in my hands
and there was no sign of a screen anywhere. No blockages in there though.
I ran it a few more times, the carb is leaking. I noticed the air filter area was wet after running.
Took everything off again and saw it is leaking out of the bottom of the carb.
That circled bit is where the fuel kept dripping out.
So, lets talk replacement carbs, I tried and seem to have failed in rebuilding it. I've tried replacing the innards and now I am left with it leaking on me. To see if I can just get this thing going can anyone recommend a replacement I can throw on there to see if it will start and run with the covers on? I'll keep this one handy if so. I know this thing starts right up, I know the air blows, just something I cannot fix with the skills I have is causing the carb to have issues.
and there was no sign of a screen anywhere. No blockages in there though.
I ran it a few more times, the carb is leaking. I noticed the air filter area was wet after running.
Took everything off again and saw it is leaking out of the bottom of the carb.
That circled bit is where the fuel kept dripping out.
So, lets talk replacement carbs, I tried and seem to have failed in rebuilding it. I've tried replacing the innards and now I am left with it leaking on me. To see if I can just get this thing going can anyone recommend a replacement I can throw on there to see if it will start and run with the covers on? I'll keep this one handy if so. I know this thing starts right up, I know the air blows, just something I cannot fix with the skills I have is causing the carb to have issues.
PTmowerMech
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My guess is it's coming from the needle. Meaning the metering level isn't correct. Or the needle or seat is bad.
FredBacher
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I will take it apart again this weekend and check the order and the pieces inside that part of the carb.
On the other topic, anyone have any recommendations on a replacement carb itself to throw in there and see what happens?
On the other topic, anyone have any recommendations on a replacement carb itself to throw in there and see what happens?
Fred, as StarTech mentioned, the order of the gaskets and diaphragms is important because they are different on either side of the carb. You can see that on the parts breakdown pic above. In the pic, note that the metering diaphragm gasket(13) goes against the carb body first, then the metering diaphragm(14). However, in the lower half of the pic, the pump diaphragm(16) goes against the carb body first, and then the pump diaphragm gasket(15).
fwiw, good luck!
fwiw, good luck!
FredBacher
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Part 16 is the one in my replacement kit that came clear instead of black plastic... and thats the side things are leaking from...
Anyone ever try a knock off carb instead of a full $150 one?
Anyone ever try a knock off carb instead of a full $150 one?
PTmowerMech
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I've used to those clear plastic pieces before. And can't remember any problems with them. All they really are is like a check valve. The allow fuel in, and keep it from going back. At least that's my understanding.
Unless I've missed something along this discussion, the blower runs fine as long as the air isn't restricted, correct? It idles fine. Sounds like it blows pretty hard.
Did you peak inside the ports to see if their was any cylinder scoring?
Is there any build up of oily dirt coming from behind the flywheel?