Honda engine and carb compatibility

[angellonewolf]

I've got a power driven honda lawnmower

Runs but not right I've been chasing it for the last year all ways starts easy and will cut grass sounds better when you have the blade engaged (the hydro elastic needs work but that's another day job i can live with it at the moment)

I've cleaned the carb a couple times put in carb kits and new gaskets did make it better but again not right

I have 2 other mowers both honda but not thr same engines are the carbs compatible?

The first is a parts unit and I'm going to just pull the engine off that as spares the 2nd is a good running hover mower that I don't realy want to play with that going to be sold but realy want my main mower working right so as they both not cost me a lot if the parts are good I don't mind

 

[mart]

Are you in South Yorkshire by any chance?

 

[angellonewolf]

No bristol

 

[mart]

If you were I was going to offer you a 2 stroke petrol hover mower. The type that council use on embankments/slopes etc.Brand is ALLEN. No longer needed.

 

[Newlands]

What makes you think the carb is at fault? If you’ve already refurbed it with a kit of parts, maybe you should be looking at something else - head gasket, dirt in the tank, spark plug given up the ghost, etc. If you still suspect the carb, just swop it for the one on the other mower - both similar engines sizes so as long as it physically fits then it will probably run, but only by playing around will you find out whether it runs satisfactorily. There are loads of cheap Chinese knock-off carbs available that might be a direct replacement.

 

[Beanwood]

You'll need to take them off and physically try them. I bet there are slight differences - there are for example between air filter boxes - that only show up when you try to fit them....
At £16 for a copy replacement, I'd give that a go - but don't throw out the original (DAMHIKT)

 

[Ali]

What fuel are you using? Splashing out on the expensive stuff has solved no end of ethanol related problems with my mower.

 

[angellonewolf]

If you were I was going to offer you a 2 stroke petrol hover mower. The type that council use on embankments/slopes etc.Brand is ALLEN. No longer needed.

thankyou for the offer and very generus but ive got other mowers (the honda hover mower is my spare at the mo but if the honda roller worked fine i could sell the hover and gain the space

What makes you think the carb is at fault? If you’ve already refurbed it with a kit of parts, maybe you should be looking at something else - head gasket, dirt in the tank, spark plug given up the ghost, etc. If you still suspect the carb, just swop it for the one on the other mower - both similar engines sizes so as long as it physically fits then it will probably run, but only by playing around will you find out whether it runs satisfactorily. There are loads of cheap Chinese knock-off carbs available that might be a direct replacement.

im not sure its the carb is at fault but if ive got a working carb off another mower and tryed that and it worked fine at least i know as a process remove one item if thats not the fault move on to the next


ive cleaned the tank changed spark plug not looked at the head gasket as yet try rule every thing else out before then

You'll need to take them off and physically try them. I bet there are slight differences - there are for example between air filter boxes - that only show up when you try to fit them....
At £16 for a copy replacement, I'd give that a go - but don't throw out the original (DAMHIKT)

tryed a china carb did not even start (just thought the carb was carp and thrown it away as they can be hit and miss)

What fuel are you using? Splashing out on the expensive stuff has solved no end of ethanol related problems with my mower.

on my mowers and 2 stroke stuff only ever have bought the 4 star stuff (now i think 5% ethanol) for years as seams to run better on that

 

[Newlands]

We haven’t got a lot to work with here - you say it starts ok and sounds better under load, but that’s about it.
Check both the main jet and the emulsion tube are clean. Also check that the spring on the governor linkage is still there and connected - it’s very flimsy and so easy to break or get dislodged or restricted with leaves, twigs etc.
There are a few videos on YouTube, but mostly for HRX and HRN models, but they might be worth looking at.

 

[angellonewolf]

We haven’t got a lot to work with here - you say it starts ok and sounds better under load, but that’s about it.
Check both the main jet and the emulsion tube are clean. Also check that the spring on the governor linkage is still there and connected - it’s very flimsy and so easy to break or get dislodged or restricted with leaves, twigs etc.
There are a few videos on YouTube, but mostly for HRX and HRN models, but they might be worth looking at.

sorry i know realy need to get a vid but back to work tommorw so will have to wait till weekend

its more it starts fine but take it off choke seams like its just running engage the blade seams to make it run ok (assume it works the same as the extra weight smooths out the engine but also there is it works ok at high speed generaly but if i want the mower to go a bit slower you dont have much ajustment the lever at the top just under choke works as said ok (not right but runs)drop the lever to reduce the speed just a 5mm drops the throttle a bit much more of a lever movement to slow the mower only just keeps running so wont cut or just dies

 

[Newlands]

sorry i know realy need to get a vid but back to work tommorw so will have to wait till weekend

its more it starts fine but take it off choke seams like its just running engage the blade seams to make it run ok (assume it works the same as the extra weight smooths out the engine but also there is it works ok at high speed generaly but if i want the mower to go a bit slower you dont have much ajustment the lever at the top just under choke works as said ok (not right but runs)drop the lever to reduce the speed just a 5mm drops the throttle a bit much more of a lever movement to slow the mower only just keeps running so wont cut or just dies

That sounds like the governor not working properly to me, but it could also be petrol starvation, and maybe the previous owner just wound out the adjustment screw to compensate so it runs ok-ish at full chat but rough at low rpm. An ultrasonic cleaner works well on these small carb components.

 

[angellonewolf]

That sounds like the governor not working properly to me, but it could also be petrol starvation, and maybe the previous owner just wound out the adjustment screw to compensate so it runs ok-ish at full chat but rough at low rpm. An ultrasonic cleaner works well on these small carb components.

ive now got a new carb cleaner so that willl be worth a go again

never changed the gov setting before on engines never needed to