June 19, 20179 yr 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
June 20, 20179 yr 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:
June 20, 20179 yr what head is fitted D7, D14, B175, Todd? B7ES plug & 30:1 Oil? like brownie001 says, depends on mods Edited June 20, 20179 yr by suzuki250
June 20, 20179 yr 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
June 20, 20179 yr 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.
June 21, 20179 yr 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
June 22, 20179 yr Author 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?
June 22, 20179 yr Author 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.
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