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snapper snow blower . surges

#1

B

bebuzz69

I thought I would get out my snow blower and get it ready just in case we get snow this year. noticed some old fuel still in carb. thought I ran it dry.well it surges really bad. so off came the carb for a cleaning, no help. so a carb kit. no help. I have a new carb on hand, but its a replacement, one without the adj on the bowl. put it on and it still surges. what else could be wrong. its a HM80 ENGINE TECH.


#2

exotion

exotion

bebuzz69 said:
I thought I would get out my snow blower and get it ready just in case we get snow this year. noticed some old fuel still in carb. thought I ran it dry.well it surges really bad. so off came the carb for a cleaning, no help. so a carb kit. no help. I have a new carb on hand, but its a replacement, one without the adj on the bowl. put it on and it still surges. what else could be wrong. its a HM80 ENGINE TECH.
Click to expand...

Is the govenor arm clean? Might need adjusted or water in fuel and needs to be burned out


#3

B

bebuzz69

exotion said:
Is the govenor arm clean? Might need adjusted or water in fuel and needs to be burned out
Click to expand...

yes adj the gov. cleaned the tank new fuel line. checked the timing key. checked the head gasket. the valves looked like they were not seating right, would that do it.


#4

exotion

exotion

bebuzz69 said:
yes adj the gov. cleaned the tank new fuel line. checked the timing key. checked the head gasket. the valves looked like they were not seating right, would that do it.
Click to expand...

Well if they are not seating right they need adjusted anyway. So I would adjust them and see if it solves the problem.


#5

B

bebuzz69

exotion said:
Well if they are not seating right they need adjusted anyway. So I would adjust them and see if it solves the problem.
Click to expand...

the only trouble is there is no adj. its not an overhead valve.


#6

impalass

impalass

bebuzz69 said:
I thought I would get out my snow blower and get it ready just in case we get snow this year. noticed some old fuel still in carb. thought I ran it dry.well it surges really bad. so off came the carb for a cleaning, no help. so a carb kit. no help. I have a new carb on hand, but its a replacement, one without the adj on the bowl. put it on and it still surges. what else could be wrong. its a HM80 ENGINE TECH.
Click to expand...
Usually surging is a lean mixture.


#7

A

afoulk

I agree, might be a vacuum leak.


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