Bean oil? ---does it make your plug black?
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Bean oil? ---does it make your plug black?
I think my bikes are jetted correctly----they run strong everywhere in the RPM range---and with 40 years of experience riding two strokes I am confident that I am not running an overly rich mixture. However, this is the first time I've ever run bean oil premix---and the porcelain around the center electrode is showing a (dry) black coloring---not a light chocolate brown as I believe is usually the goal??? So my question is:
Does bean oil turn the plug black----and is there any worry that the plug will 'foul' because it is so black?
Does bean oil turn the plug black----and is there any worry that the plug will 'foul' because it is so black?
The Duck of Deseret (Deseret was Utah's first name)
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Klotz R50 ain't bean oil, it's a full synthetic that has an additive to make it smell somewhat like castor. If your fouling plugs with R50, it's the normal 'ol jetting problem.factoryX wrote:I may get shot by this, but my KDX fouls plugs at 40:1 with r50 Klotz unless its ridden like a 125 motocrosser. I've read similar issues on the web as well. Bean oil is good on parts, but very messy, and unless you're riding your bike like a 125, not totally necessary.
To the OP, if your using a real castor oil, having a black insulator on your plug is probably normal. Castor, though heaven for your bottom end, is a high ash, messy oil.
2004 KDX 200.. Coupla mods
2009 KX250F.. Track Star
2007 Hayabusa.. Street Madness
2009 KX250F.. Track Star
2007 Hayabusa.. Street Madness
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I used R50 at 40:1 with no alky pump 91 for almost 3 years. Plunking around on trails.. never fouled a single plug. Exhaust valve wasn't overly gummy when I did the top end last summer either. Dunno.
Only time I've ever had plug fouling problems was when the main jet block gasket started leaking last spring. Fixed that during the RB mods.
Switched to Amsoil Interceptor now because it costs half as much as all the main stream pre-mix oils. Can't really tell much, if any difference other than the lack of the cool smell, and the extra $$ left in my pocket.
Only time I've ever had plug fouling problems was when the main jet block gasket started leaking last spring. Fixed that during the RB mods.
Switched to Amsoil Interceptor now because it costs half as much as all the main stream pre-mix oils. Can't really tell much, if any difference other than the lack of the cool smell, and the extra $$ left in my pocket.
2004 KDX 200.. Coupla mods
2009 KX250F.. Track Star
2007 Hayabusa.. Street Madness
2009 KX250F.. Track Star
2007 Hayabusa.. Street Madness
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