Thursday, 14 August 2014

Yamaha YBR 125 Spark plug , type , gap , torque figures and how to read .









Yamaha YBR 125 Spark plug , type , gap , torque figures and how to read




Yamaha YBR 125 workshop manual

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Yamaha YBR 125 Spark plug , type , gap , torque figures and how to read




I only use NGK why because it what i have always used and trust and i get them cheap trade supply
as i am stuck with them i am sure the other brands make excellent spark plugs but you tend to stick with what you know and trust .

i have had failed new spark plugs in the past though , which does not help diagnosis at all !! .


you can buy them here at Ebay UK



Yamaha YBR 125 Spark plug

Spark Plug NGK CR6HSA
Spark Plug torque setting 13nm
spark Plug Gap 0.6-0.7

Yamaha YBR 125 Spark plug , type , gap , torque figures and how to read

buy a spark plug gap testing tool 



get loads more info on spark plugs at NGK website here .

 Being able to "read" a spark plug can be a valuable tuning aid. By examining the insulator firing nose color, an experienced engine tuner can determine a great deal about the engine's overall operating condition.
In general, a light tan/gray color tells you that the spark plug is operating at optimum temperature and that the engine is in good condition. Dark coloring, such as heavy black wet or dry deposits can indicate an overly-rich condition, too cold a heat range spark plug, a possible vacuum leak, low compression, overly retarded timing or too large a plug gap.
If the deposits are wet, it can be an indication of a breached head gasket, poor oil control from ring or valvetrain problems or an extremely rich condition - depending on the nature of the liquid present at the firing tip.
Signs of fouling or excessive heat must be traced quickly to prevent further deterioration of performance and possible engine damage.






thanks for reading the Yamaha Owners blog , if you would like to support us you can by  buying your newYamaha YBR 125 off ebay uk here or buying  parts for your Yamaha YBR 125 from ebay uk 

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