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Posted by bob haller on October 10, 2009, 12:48 am
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> On Fri, 9 Oct 2009 15:56:22 -0400, Twayne wrote:
> >> I have a 6.75hp Craftsman lawnmower with a Techumsa engine and my son
> >> has a
> >> 4.5hp Craftsman lawnmower with a Briggs and Stratton engine. I just
> >> cut my son's very tall, thick lawn (3 weeks of rainy weather) with
> >> his 4.5hp mower and it never bogged down to the point of stalling and
> >> rarely slowed down much, even taking full width cuts. OTOH, my 6.75hp
> >> mower bogs down on thin, long lawn (2 weeks little rain) to the point
> >> of totally dying if I take any more than a 1/4 width cut. What gives?
> >> Mike D.
> > All kinds of possibilities, none of which are the brand in a case like
> > this. =EF=BF=BDYOu have things like the following that can affect how w=
ell they
> > work:
> > -- =EF=BF=BDEngine tuned? Just like a car they need an occasional tune-=
up based
> > on how they're used.
> > -- =EF=BF=BDEnvironment? Used in dusty/not dusty places? =EF=BF=BDEver =
replaced the air
> > filter?
> Read previous post, changed about a month ago. Not dusty
> > -- =EF=BF=BDUsing old or fresh gas?
> fresh gas
> > -- =EF=BF=BDWater in the fuel?
> Doubt it.
> > -- =EF=BF=BDFuel filter changed?
> no fuel filter
> > -- =EF=BF=BDTire pressures, if applicable, set right?
> not a rider
> > -- =EF=BF=BDCompared at same time or different times? =EF=BF=BDWeather,=
humidity, etc
> > etc etc all can make a difference.
> always had low power
> > -- =EF=BF=BDEngine clean? Fins clean? Debris cleaned out? Air flow OK?
> cleaned
> > -- =EF=BF=BDProper oil?
> yes
> > -- =EF=BF=BDPast Preventive Maintenance record?
> > -- =EF=BF=BDBlades sharp?
> again, read previous posts. My son's yard is full of rocks and hidden
> bricks, which I hit numerous times
> > -- =EF=BF=BDBlades aligned properly?
> Single blade on a push mower
> > -- =EF=BF=BDBelts all good?
> See above and previous posts
> > -- =EF=BF=BDAll pulleys tight & rolling free?
> See above
> > -- =EF=BF=BDIdler arms set properly?
> See above
> > -- =EF=BF=BDHours logged on the engines? (Here, brand CAN make a differ=
ence!)
> mine had no power from the start. I initially chalked it up to pollution
> controls of all new motors
> > -- =EF=BF=BDGood overall design of the mechanics?
> Good question. I am not a lawn mower engineer so can't comment on design.
> > -- ...
> > AS you can see there are a LOT of reasons for a difference as you
> > mention. =EF=BF=BDI noticed somoene said 8 HP was fine for a 3-blade de=
ck, which
> > is nonsense. =EF=BF=BD8 HP is seriously under-powered and a very hard
> > combination to find, actually. =EF=BF=BDA few of the other ego-boast gu=
esses I
> > saw were nearly as silly too. =EF=BF=BDWithout having them sitting side=
by side
> > in my garage to test/adjust/observe and maybe repair, a person can't
> > really give you a definitive answer to this one.
> > =EF=BF=BD =EF=BF=BDIf I were forced to guess, I'd say an engine tune-up=
, blade
> > sharpening and deck adjustments are the place to start.
> > Cheers,
> > Twayne`- Hide quoted text -
> - Show quoted text -- Hide quoted text -
> - Show quoted text -
is running speed fast enough? might be a govenor problem...........
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