Just finished the front 'yard' 90mins straight mowing - the pleasures of living on acreage thats not able to be done by rideon. Checked the plug before starting and sure enough it was filthy, really no difference at all from the BPR6ES in terms of the amount of carbon on it.
I removed the thin foam prefilter on the airfilter to provide a tad moree airflow - as I'm just trying the 'easy' stuff first -. ANyway the amount of smoke is just as bad as ever - might even be a tad worse to be honest - if I have the engine at idle RPM and then accelerate with no cutting load at all there's quite a big shot of black smoke that shoots out - very pronounced.
SO I think I can eliminate the plug (though I think the hotter plug is a good idea anyway), I think the airflow to the carb isn't the issue, so eliminate that too.
That leaves the carb settings, oil and perhaps anything else as the things to try and alter/adjust?
Any ideas welcomed. :-)
PS. I likely need to find the cause of the smoke first - but if there's a best way to reduce/remove the carbon thats built up in the cylinder head etc - please feel free to let me know - prefer something non-mechanical (i.e not have to open cylinder head completely) but dunno if I can remove the exhaust outlet and flush/soak with carb cleaner etc? Again I won't do until I've reduced the smoke as otherwise kinda pointless.
Last edited by N1KK0; 09/11/23 11:46 AM.
