Carb rebuild kits

I need to rebuild the carb on my OS 22 petrol engine. I'm reasonably sure it requires a K10 Wat rebuild kit which I believe Just Engines sell for around 15 quid and they appear to sell a Walbro item. The question is has anyone tried the kits available from ebay, which are presumably Chinese knock-offs, for much cheaper. Any thoughts?.

I would consider trying a cheapy if only to see if currents symptoms change.

I'v used cheap replacement carbs from ebay and they have been as good as the originals .

Thanks chaps, a plan is forming.

If it was me, I would buy it from just engines, you know what you are getting then

The risk of buying a cheap one from ebay is that you dont know if it will work properly, you could then think the problem is something else when it isnt

I get what you're saying Chris - I'll give that some thought. I may have to do the OS 33 as well . If that takes the same kit that will have a bearing on what I do. I think both are WT carbs and the K10 is generic for all WT carbs. Just need to confirm this.

Chris73 wrote: If it was me, I would buy it from just engines, you know what you are getting then

The risk of buying a cheap one from ebay is that you dont know if it will work properly, you could then think the problem is something else when it isnt

With respect, i would check they are genuine OEM parts - they could be sourcing from China !

kevinross wrote: With respect, i would check they are genuine OEM parts - they could be sourcing from China !

Definitely agree there. Otherwise you could be going round in ever increasing circles and achieving nothing.

Without diverting the title thread

Alan, at least your OS starts on chicken stick. Apparently OS recommends electric starters as the ign does not kick in till it senses a 120 rpm. Well they maybe they can send me a starter that will turn my OS over cos my Align starter struggles too.

I've gone for an OEM kit from a lawnmower shop on ebay. I've got oem walbro parts from them before so I think they're trustworthy 12 quid delivered wasn't too bad..

The only time I've used a starter on the 22 was on a dry engine. A good glow style flick with a chicken stick usually gets it going.

I cant turn the 33 with a starter so i'ts always a hand start, again using a glow style flick.

With either engine, assuming it isn't dry, it's usually very easy to hand start it - keeping it running smoothly however... !!!!

EDIT
I'm guessing the ignition is looking for a pulse width below a certain value rather than a particular rpm so a sharp flick should do the trick.

Maybe my flicks are not good flicks...:lol: Whatever I still get knackered just the same as if i had 50 press ups.

Before putting away in the Hangar I thought I would try starting Pennzoil at home. Now not even a kick! Took the plug out and checked for a spark. All good. Carb is either not pumping or something is blocking a jet. Strip down (when I get time) sounds the order of the month. Looks like a carb kit for me too just in case.

Got out Pepsi which has same 33GT engine and it started well and runs nice and it has been standing for 3 months. Maybe that's the way to go, don't use 'em.