sprocket62 Posted June 19, 2017 Report Share Posted June 19, 2017 Hi members. will someone tell me the best spark plug to use in a bantam 175 for trials use? and the best petroil mix using fully synthetic 2 stroke oil? ???ml per 5 litres petrol. Paul Quote Link to comment Share on other sites More sharing options...
sprocket62 Posted June 20, 2017 Author Report Share Posted June 20, 2017 surley someone knows! Quote Link to comment Share on other sites More sharing options...
brownie001 Posted June 20, 2017 Report Share Posted June 20, 2017 Your biggest problem is the lack of details.....A Bantam is not just a Bantam. Is it bog standard, has it been modified loads of things need to be taken into account. https://www.google.de/search?q=BSA+Bantam+twostroke+mix&client=firefox-b&tbm=isch&imgil=LGWyBZ9QgN2A7M%3A%3B9R34zc7JS9eJzM%3Bhttp%253A%252F%252Fwww.bsabantamclub.com%252Fforum%252Fbantam-technical-archive-faq%252Fpre-mix-ratios%252F&source=iu&pf=m&fir=LGWyBZ9QgN2A7M%3A%2C9R34zc7JS9eJzM%2C_&usg=__h7vmvxS_u6FtLHyW6Bd4gboYM5g%3D&ved=0ahUKEwiswIj_tszUAhUMrRQKHfPEABMQyjcIPg&ei=uxVJWez2NYzaUvOJg5gB&biw=1536&bih=740#imgrc=LGWyBZ9QgN2A7M: 2 Quote Link to comment Share on other sites More sharing options...
suzuki250 Posted June 20, 2017 Report Share Posted June 20, 2017 (edited) what head is fitted D7, D14, B175, Todd? B7ES plug & 30:1 Oil? like brownie001 says, depends on mods Edited June 20, 2017 by suzuki250 Quote Link to comment Share on other sites More sharing options...
dave_t Posted June 20, 2017 Report Share Posted June 20, 2017 Bit late but only just seen it. My Bantam has D14 engine with B175 head and runs fine on either B6ES or B7ES, Petroil mix on full synthetic 40:1 Quote Link to comment Share on other sites More sharing options...
hencam Posted June 20, 2017 Report Share Posted June 20, 2017 Hi, mine is a Drayton 185cc running a standard B175 centre plug head with B7ES plug. 50:1 petrol oil mix using putoline. PVL ignition set 1.1mm BTDC main jet 120 pilot with 2 rings 105 needle jet NO.3 slide seems to work fine for me. 1 Quote Link to comment Share on other sites More sharing options...
totalshell Posted June 21, 2017 Report Share Posted June 21, 2017 one thing you ll find for bantams is that no two are jetted the same. however buy a set of jets and much and i mean much time later you can have a bike that runs as smooth as poured cream that ll pick up clean from stopped dead on a slope.. no big bang of power they were commuter bikes remember.. but enough to haul evenbig boned fellas around more than adequately.. mine is std b175 on pvl with drayton exhaust used 50:1 for last 5 years Quote Link to comment Share on other sites More sharing options...
sprocket62 Posted June 22, 2017 Author Report Share Posted June 22, 2017 Thank you for info. what mix is that, using fully synthetic oil? how many ML's to 5 LTRS please. and what spark plug for D14 head? Quote Link to comment Share on other sites More sharing options...
sprocket62 Posted June 22, 2017 Author Report Share Posted June 22, 2017 On 20/06/2017 at 9:55 PM, hencam said: Hi, mine is a Drayton 185cc running a standard B175 centre plug head with B7ES plug. 50:1 petrol oil mix using putoline. PVL ignition set 1.1mm BTDC main jet 120 pilot with 2 rings 105 needle jet NO.3 slide seems to work fine for me. Thank you... perfect. by my working out that's 100ml's putoline to 5 ltrs petrol.... did 120/130 and it runs ok but oil up after running and job to start again, clean plug and away she goes again. much appreciated. Quote Link to comment Share on other sites More sharing options...
sprocket62 Posted June 22, 2017 Author Report Share Posted June 22, 2017 Thank you for all your answers and messages... got it sussed now. Quote Link to comment Share on other sites More sharing options...
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