Grass Strimmer

Baldytyke88

I have just bought one of these. Hyundai 26cc Split Shaft Petrol Grass Trimmer.

https://hyundaipowerequipment.co.uk/hyundai-hytr2600x-split-shaft-26cc-petrol-grass-trimmer

Its 40/1 oil/petrol, which I believe my last one was 50/1

But what does that difference mean, poorer design so it needs more oil?

STIHL 2-stroke engine oil 1:50 = 1 part oil + 50 parts petrol

Baldytyke88

"Older two-stroke equipment may use a 32:1 ratio."

I am guessing that means better made strimmers are more likely to use 50/1

ThisIsWeird

I was hoping others would answer with some definitive info, 'cos I don't know.

Interesting one. Certainly the trend is towards using less 2-stroke oil due to the pollution it presumably creates, tho' bizarrely the last outboard our unit purchased was a 60hp 2-stroke jobbie, claimed to be less polluting than a 4-stroke equivalent - a BRP Evinrude E-tec. Never did work that one out, but it was a nice motor.

Anyhoo, how can similar engines use less oil? No idea, but quite possibly as you suggest - less hardened metal used in bearings? Or, related to engine size - 26cc is quite small, so perhaps... no idea.  

Baldytyke88

I ended up buying one of these.

https://www.ebay.co.uk/itm/294164417231?epid=18040157242&itmmeta=01JB2M6JE0BWW57Y6Q3MQSVVMG&hash=item447d90cacf:g:bCEAAOSwgtBfrWGj

Buying online is so easy

ThisIsWeird

Blimey, that's crazy-cheap.
Let us know how it runs.
Once the season is over, drain the fuel and run the carb dry.
Anyone have any other storage suggestions? These wee 2-strokes run superbly well, until you try and start them next season...

FreeBear

ThisIsWeird said: Once the season is over, drain the fuel and run the carb dry.
Anyone have any other storage suggestions? These wee 2-strokes run superbly well, until you try and start them next season...

I'd suggest draining the carb each time it goes in to storage, and make sure you only ever use E5 petrol.

E10 gums up the jets pretty bad, and E5 is only a little better. And carb cleaners are not effective at removing the buildup of gunk in the jets.

Worth getting a carb overhaul kit or two for when you need to strip & clean it.

Baldytyke88

ThisIsWeird said:

Blimey, that's crazy-cheap.
Let us know how it runs.
Once the season is over, drain the fuel and run the carb dry.
Anyone have any other storage suggestions? These wee 2-strokes run superbly well, until you try and start them next season...

I paid £10 more, they will most likely discount them in the autumn/winter.

Mistral001

ThisIsWeird said:

Blimey, that's crazy-cheap.
Let us know how it runs.
Once the season is over, drain the fuel and run the carb dry.
Anyone have any other storage suggestions? These wee 2-strokes run superbly well, until you try and start them next season...

Perhaps it is cheap because it is classed as "Grade C" which means according to the blurb:

“Grade C - Items are checked over, cleaned, fully tested by the manufacturer and be in working order. It will have been previously used and will show fairly heavy signs of wear and tear, but will be fully functional and working order. Some parts, such as basic assembly tools, the user manual and accessories may be missing, however, this will not affect the basic operation of the machine. Packaging is usually scuffed or non-original. 30 day parts and labour warranty on mechanical parts, wear and tear items not included under warranty and other terms apply.”

That could mean as little as it was a demonstration strimmer in a shop, or a return, so it could last as long as any other one.

TELLIT01

FreeBear said:

ThisIsWeird said: Once the season is over, drain the fuel and run the carb dry.
Anyone have any other storage suggestions? These wee 2-strokes run superbly well, until you try and start them next season...

I'd suggest draining the carb each time it goes in to storage, and make sure you only ever use E5 petrol.

E10 gums up the jets pretty bad, and E5 is only a little better. And carb cleaners are not effective at removing the buildup of gunk in the jets.

Worth getting a carb overhaul kit or two for when you need to strip & clean it.

I wish I'd been given that advice when I bought a similar machine some years ago.  It was brilliant for the first year, but refused to start again the next year.  The cost of getting it overhauled was nearly as much as I paid for the thing so I didn't bother.  Used electric with cable for a while and then bought rechargeable!

Kiran

The carbs for these small engines are dirt cheap, I have a couple of spares as it's quicker to swap them out and overhaul at a later date. In terms of the 40/1 or 50/1 mix, on a bottle of fuel it really makes so little difference. If you are just doing DIY use you won't ever notice. 

As the advice above, lowest ethanol petrol you can get hold of will keep it running at its best. If you are so inclined there are methods of removing the ethanol (videos online) but for small amounts of work just follow the advice and usual small engine practice and it'll be fine