Need Mower Help

Weldangrind · 07-27-2014, 12:37 PM

I installed a new B&S Quantum Edge 6.5 engine on my neighbour's mower a few years ago (perhaps five), and it no longer runs well. It struggles to run properly at any engine speed, and the governor is erratic. There is plenty of spark, and so far I've changed the plug, oil, fuel (thinking there could be water in it) and air filter. I also dismantled the carb and cleaned it. No change.

Could it be the gasket that seals the airbox to the carb? I'm pretty sure that's how the primer bulb delivers fuel, but I'm not sure.

Any help is welcome.

katoranger · 07-28-2014, 10:50 AM

It may be that gasket. I just sold a mower that I had to retorque the head bolts. I don't think that is your problem though.

Weldangrind · 07-28-2014, 10:53 AM

Do you have a parts source that you recommend? There are no small engine shops in my town.

katoranger · 07-28-2014, 11:01 AM

http://www.jackssmallengines.com/

My Dad uses http://www.ereplacementparts.com/

I tend to shop on ebay.

It may be that you need to replace the carb. I also may have some parts in my bin.

Weldangrind · 07-28-2014, 11:56 AM

Thanks for the links. I'd be shocked if it needs a new carb already. I'll try the gasket first, and see how it runs.

Weldangrind · 07-28-2014, 12:03 PM

I found five gaskets for a good price on eBay: Air Filter Housing Gasket

katoranger · 07-28-2014, 01:16 PM

That is likely all it needs. Just an air leak at that point. Those carbs are much easier than the older diaphragm type.

07-27-2014, 12:37 PM	#1
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Need Mower Help I installed a new B&S Quantum Edge 6.5 engine on my neighbour's mower a few years ago (perhaps five), and it no longer runs well. It struggles to run properly at any engine speed, and the governor is erratic. There is plenty of spark, and so far I've changed the plug, oil, fuel (thinking there could be water in it) and air filter. I also dismantled the carb and cleaned it. No change. Could it be the gasket that seals the airbox to the carb? I'm pretty sure that's how the primer bulb delivers fuel, but I'm not sure. Any help is welcome. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
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07-28-2014, 10:50 AM	#2
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	It may be that gasket. I just sold a mower that I had to retorque the head bolts. I don't think that is your problem though. __________________ You meet the nicest people on a Honda Clone.
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07-28-2014, 10:53 AM	#3
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Do you have a parts source that you recommend? There are no small engine shops in my town. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

07-28-2014, 11:01 AM	#4
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	http://www.jackssmallengines.com/ My Dad uses http://www.ereplacementparts.com/ I tend to shop on ebay. It may be that you need to replace the carb. I also may have some parts in my bin. __________________ You meet the nicest people on a Honda Clone.
	0

07-28-2014, 11:56 AM	#5
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Thanks for the links. I'd be shocked if it needs a new carb already. I'll try the gasket first, and see how it runs. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

07-28-2014, 12:03 PM	#6
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I found five gaskets for a good price on eBay: Air Filter Housing Gasket __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

07-28-2014, 01:16 PM	#7
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	That is likely all it needs. Just an air leak at that point. Those carbs are much easier than the older diaphragm type. __________________ You meet the nicest people on a Honda Clone.
	0