Husky 559xpg was a bugger to start in the heat today

[SteveA]

Has been hot today, not mega hot, just hot.... was chainsawing all morning with our Husqvarna 550xpg

 

a) Went through first tank of fuel no problem

b) topped up with fuel (wasn't completely empty)

c) topped up with fuel again (wasn't completely empty)

e) felled a few more trees, nothing massive, saw felt hot after that but nothing unusual

f) switched the saw off to tidy up the work area (about 10 minutes)

g) saw didn't want to start again

h) pulled & pulled for ages

I) eventually got it started

j) cut another tree down, saw was hot again, but nothing unusual

k) turned saw off & tidied up

l) pulled for ages again! ....& eventually started

 

Is anybody else having hot weather starting problems with the 550xp (or XPG)?

Mines been fine before this morning so wondering if it's a hot weather issue? (550xpg is 2013)

 

Cheers, Steve

Edited June 14, 2014 by SteveA

[SteveA]

woops... meant to say 550xpg in title, not 559xpg!

[Stubby]

woops... meant to say 550xpg in title, not 559xpg!

 

Oh ! and I wanted a a 559 ......

[Garyjp]

crappy fuel causing vapour locking perhaps??

 

 

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[shavey]

Oh ! and I wanted a a 559 ......

 

same here wondered when that one was realesed :thumbup:

[miker]

slightly different but my jonsered brushcutter was playing up in the heat on thursday,same problem with hot start,funnily enough started easily with choke ? thought i would give it a try,nothing to lose and seemed to sort out hot starting

[SteveA]

slightly different but my jonsered brushcutter was playing up in the heat on thursday,same problem with hot start,funnily enough started easily with choke ? thought i would give it a try,nothing to lose and seemed to sort out hot starting

 

I did wonder about trying the choke the second time it happened but didn't. If (when) it happens again I may try that. Cheers, steve

[spudulike]

The tank vents often let air in but not out so if the fuel tank gets hot, the fuel expands and it forces itself past the needle valve and floods the engine - got a call on a past rebuild with similar symptoms, 10 mins on the phone and all was good:thumbup:

[SteveA]

The tank vents often let air in but not out so if the fuel tank gets hot, the fuel expands and it forces itself past the needle valve and floods the engine - got a call on a past rebuild with similar symptoms, 10 mins on the phone and all was good:thumbup:

 

Ah!....that reminds me!!.... when it was hot and I undone the flip cap (to refuel) it did release quite a bit of pressure, with a *PHISH* sound. Could that be it?!.... bit of a pain if I need to release the tank pressure every time on a hot start though!! Cheers, steve

[spudulike]

Ah!....that reminds me!!.... when it was hot and I undone the flip cap (to refuel) it did release quite a bit of pressure, with a *PHISH* sound. Could that be it?!.... bit of a pain if I need to release the tank pressure every time on a hot start though!! Cheers, steve

 

It is possible, the pressure will push fuel toward the carb and if enough, will open the needle valve.

 

You could try leavig the fuel cap slightly loose or leaving the tank empty in hot weather.