You can check for spark but I would not recommend using ether because you could do more harm then good. I could be your kill switch like you said. Good luck and let us know how you make out.:smile:Hey all you small-engine gurus, I'm hoping you can help me with my generator. It's a 5kw Troy-Bilt with a B&S 1450 series 305 cc electric start (pull start also). I bought it brand new 3 years ago because we were losing power weekly, and - as is always the case with these things - have not had to use it once since I bought it. I've started it up occasionally and run it for 30 minutes, but today it won't start. I drained the tank and refilled with fresh gas. Charged the battery. Checked to make sure no varmints were nesting in there. It cranks and cranks but won't start. Choke on, choke off, no difference. Any suggestions? I thought about bypassing the kill-switch in case it went bad. Should I test for spark? Replace the plug? Spray some starter-juice in the carb?
Here's the model number - 030343
I'm assuming then that I have to pull the carb as suggested and clean it out thoroughly. Any other suggestions?
If you can get at the adjustment screws -- make sure you know where they should be set - pull them out and spray in adjusting hole with carb cleaner - replace to correct setting - put some Seafoam or gumout (or some similar gas treatment) in the tank -- crank a little so the treatment can get into carb -- let it sit a while - try it again. That may work without taking the carb off. ---- If I'm wrong someone will correct me :laughing: !
I actually don't have the tools to pull the carb - requires some kind of reverse-star-drive. I did, however, pull the holding tank off the bottom of the carb and cleaned it out. Cleaned the float. Parts are a little gummed up. Will see what happens....
If you got the float bowl off the carb and cleaned the inside and clean the jets (where the adjusting screws go) ---- that should solve the problem. Good luck !
...and the plot thickens...
There is a spring on the bottom of the float assembly - it rests on the bottom of the bowl and ostensibly maintains upward pressure on the float assembly to keep it tight against the carb/gasket. When I say it rests, I mean literally - there is nothing to hold it in place on the bottom of the bowl, and there is nothing to hold it in place on the float assembly. Bottom line - gravity assists the coming off part, but hinders the going-back-on part since there is nothing to hold the spring in place. I've tried it three times now, and each time it seems as though it goes together correctly. But then when I turn the gas line back on, after a few seconds the bowl fills up and then the gas comes pouring out of the choke area. So something is not sealing back up correctly.
I believe the bowl is intended to be put back on with the carburetor upside-down, so that gravity will hold everything in place.
So it appears that I have to remove the carb after all. See attached image of the screws - is this "reverse star-drive " tool something that I can find at a hardware store? Or should I just haul the thing off to the repair shop at this point?
(why don't they just put drains on the bottom of these bowls?! @#$%!!!)
Yes you can get and you should have a set.... at lowes or any place that sells tools.
My generator has the same set up but it has a drain on the carb bowl.
I suggest you go to walmart and get the B12 Chemtool carb cleaner, best I've found. You know it's good when it burns the cr@pp out of your hand if it gets on it.
Take some more pics of the carb on the motor and post before you give up. This is probably no big deal. Even if you have to replace the carb you will probably spend less than what the shop will charge.
Since you have it apart, look at the bolt that holds the carb bowl on the carb and see if it has ports through it (part#950}. Then look at the ports carefully and see if they are obstructed or partially clogged. This is one way gas gets to the carb.At this point I'll have to order the carb overhaul kit, since I'll probably need new gaskets after taking it off/apart. Meantime, I'll try to find the tool.
Here's a link to the carb parts schematic. Page 4. I have the Nikki.
http://bsintek.basco.com/BriggsDocumentDisplay/default.aspx?filename=18nqxGXBnfBhU7y
Anyone have any suggestions for retro-fitting a drain into this bowl? It seems to be some kind of cast aluminum.
Here's a link to the carb parts schematic. Page 4. I have the Nikki.
http://bsintek.basco.com/BriggsDocumentDisplay/default.aspx?filename=18nqxGXBnfBhU7yQUOTE]
The only spring I see in the float bowl goes above the float - around the needle valve.
It would not make sense to have a spring holding the float up - the gas is supposed to raise the float to shut off the valve.
Again, if anyone has a suggestion for retro-fitting a drain for this cast-aluminum bowl, that'd be fantastic. It's ridiculous that you have to take the carb off (and it IS a PITA) in order to drain the old gas out of the carb.
Yeah, it appears that way in the diagram, but it's a poor rendering of the parts. See attached picture. The spring sits in a recess in the bottom of the float frame. Since the reservoir (bowl) doesn't contact the float frame when bolted in, there is nothing to keep the float frame tight against the carb body/gasket. The spring provides that tension to keep it tight. But I have discovered that you cannot possibly re-attach the bowl unless the carb is turned upside down so the spring stays in place in the recess while you tighten down the bowl. This is PI$$-POOR design! If they'd just bothered to install a drain, you'd never have to remove the bowl to drain it. But in the absence of a drain, if they'd just bothered to mold the recess into the BOWL rather than the float-frame, it could have been re-assembled in-place without having to remove the carburetor.
At any rate, I went to the hardware store, Home Depot and Lowes looking for "spline" sockets - no deal. I found that a regular 5/16 socket worked though. So I removed the carb, cleaned it, turned it upside down and properly re-attached the bowl. Put the carb back on and she fired right up. No leaks (so far), and all is well. Thanks everyone for the help.
Again, if anyone has a suggestion for retro-fitting a drain for this cast-aluminum bowl, that'd be fantastic. It's ridiculous that you have to take the carb off (and it is a PITA) in order to drain the old gas out of the carb.
Yeah, it appears that way in the diagram, but it's a poor rendering of the parts. See attached picture. The spring sits in a recess in the bottom of the float frame. Since the reservoir (bowl) doesn't contact the float frame when bolted in, there is nothing to keep the float frame tight against the carb body/gasket. The spring provides that tension to keep it tight. But I have discovered that you cannot possibly re-attach the bowl unless the carb is turned upside down so the spring stays in place in the recess while you tighten down the bowl. This is PI$$-POOR design! If they'd just bothered to install a drain, you'd never have to remove the bowl to drain it. But in the absence of a drain, if they'd just bothered to mold the recess into the BOWL rather than the float-frame, it could have been re-assembled in-place without having to remove the carburetor.
At any rate, I went to the hardware store, Home Depot and Lowes looking for "spline" sockets - no deal. I found that a regular 5/16 socket worked though. So I removed the carb, cleaned it, turned it upside down and properly re-attached the bowl. Put the carb back on and she fired right up. No leaks (so far), and all is well. Thanks everyone for the help.
Again, if anyone has a suggestion for retro-fitting a drain for this cast-aluminum bowl, that'd be fantastic. It's ridiculous that you have to take the carb off (and it is a PITA) in order to drain the old gas out of the carb.
Looks to me like they repalced the extension spring with a compression spring to operate the needle and seat, but it's hard to say. I have not seen one like that.
OK -- usually parts drawings are more correctly done.
I'd probably install (if there isn't one) a shut off valve on the gas tank. Get some Marine Formula blue
Sta-Bil (better for the Ethanol Gas) and the last time before putting it away -- use some of the Sta-Bil -- turn gas tank off -- run engine until it quits so that there isn't much if any gas in the carb. -- then drain the tank and put in new gas next time you use it.
link to Sta-Bil (Gold Eagle) web site Deprecated Browser Error
Drilling and tapping a float bowl and finding a plug that isn't too deep is possible, but not the easiest solution.
I can't find it in the parts description but 105a looks like the needle.The spring is not connected in any way to the float. It's sole purpose is to keep the float frame tight to the gasket. The float itself has no spring, but does have a shut-off pin (item 105a in the diagram) that operates separately from the spring.
I can't find it in the parts description but 105a looks like the needle.
I think the spring is a gratuitous item ment to counteract vibration, extending the life of the bowl gasket.
Yes, 105a is the needle - I'm afraid I'm not very good with the terminology! But the spring isn't superfluous - it's an integral part of the assembly. See attached diagram - it's crude, but you get the idea. Although the bowl "shares" the gasket with the float frame, the bowl does not in fact hold the float frame tight against the gasket. So without the spring, gravity would make the float frame fall away from the gasket and rest in the bottom of the bowl.
I think this is poor design - the bowl itself should hold the float frame in place. And the design (bad as it is) is poorly executed since there is nothing to hold the spring in place - you cannot reattach the bowl unless the carburetor is upside down. There is nothing to hold the spring in the float frame recess, and nothing to hold the spring in place in the bowl, so gravity works against you.
(I've removed the float mechanism itself in order to simplify the diagram - it attaches to the float frame and pivots up and down independently)