honda izzy lawnmower petrol tank dry between use

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i have 2007 honda izzy 18" lawnmower - been going fine, i change the oil and sharpen/balance blade etc
anyway
last year towards the end of season, sep ish time, i noticed the petrol tank was dry between use - probably a week , never had that before - i usually fill the tank and probably get 2 cuts from a tank, and theres usually some in the bottom when i fill it up.
but this time i noticed it was dry between cuts
cannot smell any pterol in the garage and i probably go in most days

anyone got a suggestion, what to look for - i guess a perished / loose fitting pipe ..... never really worked on this - so how to get apart would be useful

i'm thinking of just biting the bullet and getting a EGO 18" or 21" replacement - at between £600-900
Probably after a few reviews looking towards the EGO now
or a stihl 448 as i already have a 200 battery = not ideal as 300 needed - just wont last as long
 
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Machinery nation does a good review of electric mowers on their youtube site.
 
Thanks I watched that earlier

Best Battery Lawn Mowers 2023 - Watch This Review Before You Buy!

- which sort of made me edit the post , to now looking more at the EGO.

But would like to sort out the honda , before spending out £900 ish
 
The Izy has a petrol tap, so close that and see what happens first of all.
If the fuel still vanishes then the carburettor needle valve is passing fuel.....not unknown and the fuel may escape to the air filter - which is paper - or the exhaust silencer.
Less likely is the fuel may be heading to the sump, and you can tell that because the oil level rises.
Why you can’t smell anything is anyone’s guess!
John
 
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Thanks for the quick replay and all the info - lots to consider and look out for - cheers

The Izy has a petrol tap, so close that and see what happens first of all.
Yep, thats closed , i always do that , and I checked when it was first dry, in case i had forgotten , but it was off

.not unknown and the fuel may escape to the air filter - which is paper - or the exhaust silencer.
I'll check the filter , bit late now as been in garage since about november , but maybe theres a mark or some clue - and I can certainly add fuel at end of week and then check and see if the filter has anything

Less likely is the fuel may be heading to the sump, and you can tell that because the oil level rises.
ok, thanks - I'll check the oil level and see what it at - later in week and report back

Why you can’t smell anything is anyone’s guess!
I will have more of a look around after i fill

then the carburettor needle valve is passing fuel.
is that a worn valve - maybe dirt , i try and make sure nothing goes in - is it a simple job to take apart and clean
I took apart a stihl carb last year , had a membrain and cleaned all that when the chain saw would not start , reasonably straight forward having looked at lots of youtube videos
 
If you turn the fuel tap off - and presumably it’s working- then either it’s a problem with the tank or the pipe leading to the tap so no need to delve any deeper.
I’ve never had an issue with either of these, but either way you should smell something!
John
 
Thanks John
Thats good to know, and saves a lot of trouble shooting - good point about the TAP if working or not , maybe its NOT 100% shutting off now .... and leaking into carb and i assume evaporating
I'll spend sometime looking into before i shell out on a new mower, although I have a budget for things like that were everymonth I put a little away for things like replacement items - not enough these day, cost of things now .... Old days was envelopes ......
anyway - thanks again for the guidance , at least i know where to look first
 
Good luck with it, they are a great machine and you'll always find a buyer for it!
The tank is integral with the air cooling cowl.......3 10mm cap nuts and it lifts off, after losing the recoil starter of course!
John :)
 

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