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Old 05-01-2004, 04:41 AM   #1 (permalink)
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Default older 50 atv

I just bought my son a used 50 atv. The serial # is KMAA11A001101359. The previous owner said the only work that's been done to it has been a ring job. He disabled the oil injection and ran a mix instead. It seems to run fine but the spark plug appears to be slightly wet and dirty. What is the correct plug # to replace the old one and what ratio would you recommend on fuel mixture(40 to 1,32 to 1) as I don't plan on fixing the oil injection yet? Could you also tell exactly what year it is.

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Old 05-04-2004, 07:33 PM   #2 (permalink)
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Default Older 50 atv

You didn't say what type of ATV it was, but it could be 2001 model. If the self oiler pump has been disconnected, a pre-mix of 50:1 should enough, as it sounds like the plug is not able to burn the oil you're putting through.
Sorry, I can't help with the plug type without knowing the type of bike.

Hope this helps!
Matty.
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Old 05-19-2004, 06:04 PM   #3 (permalink)
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Default plug

We run a 2004 lta 50 it came with BPR4H from showroom, manual says if the plug is apt to overheating to replace it with BPR5H gapping shows in the manual at 0.5-0.6mm (0.020-0.024in) hope this helps, our oil injection is still fuctioning
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