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Mon, May 31, 10 at 1:00
| ok i have 14.5 briggs ohv motor.the carbs was rebuild before i bought it and what i'm having trouble with is the nikki carb i have took it apart clean it up with carb cleaner.but it still spitting gas from the carb in the air filter any idea what going on with it?and also when you try to run it at full throttle it will try to die out?what could be cauesing this.i have checked the valve and stuff they seem fine. |
Follow-Up Postings:
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| If you are absolutely sure it is assembled the way it should be, on these it is best to replace the gasket and float valve- or give up and bolt the Walbro on... |
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- Posted by jeffrey2525 (My Page) on Mon, May 31, 10 at 17:23
| yes i put back together right.i have rebuild lots of lawnmower carbs never worked on a nikki carbs they seem like crap.and lol the walbro is 135$ brand new.so trying fix the nikki they seem alot different then walbro.where can i get the rebuild stuff for the nikki?thank you. |
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| " i have took it apart clean it up with carb cleaner.but it still spitting gas from the carb in the air filter" Something you want to keep in mind here, the compression release system on a B&S 14.5 hp OHV engine operates on the Intake Valve. It is normal for there to be some blow back thru the Intake when cranking. Excessive blow back may indicate not enough valve clearance OR bad valve. Doubt that blow back thru carb has anything to do with the carb. Walt Conner |
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| As a follow up, actually spitting gas may indicate that the float needle is still leaking flooding the carb and spitting excessively gas along with the normal air/fuel blow back at cranking speed. Try turning the gas off at in-line gas shut off valve before shutting off engine. Good used Walbro Carbs should be fairly easy to find as lot of this series of engine wind up throwing rods due to gas contaminating oil. Walt Conner |
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- Posted by jeffrey2525 (My Page) on Mon, May 31, 10 at 22:36
| well the other problems is i took the carb off the 14.5 put it on a 12.5 brigg did the samething.and when you try to put it in full throttle it will spit gas and then die out.what could cause that?thanks. |
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