April 26, 20233 yr Bought the electronic ignition for my 199B, last year 350 and noticed the it needs a spark plug that has the threads on top instead of the modern style plug for the boot to fit, I am using an NGK BPR4ES. Is there a plug that will work with this boot or do I need to convert the boot?
April 26, 20233 yr Author 1 hour ago, b40rt said: Does to top of the plug not screw off ? No, few plugs today do. Need to find one that does or change the boot
April 27, 20233 yr 10 hours ago, slowrider said: No, few plugs today do. Need to find one that does or change the boot NGK BPR4ES 7222 Spark Plug Copper Core (gsparkplug.com)
April 27, 20233 yr Author 5 hours ago, stpauls said: NGK BPR4ES 7222 Spark Plug Copper Core (gsparkplug.com) That is the plug I have and the top does not unscrew on top, need a plug that will unscrew at the top allowing me to use use the threaded part in the boot
April 27, 20233 yr You have a plug with a solid terminal. You can get the same plug either threaded or with a removable nut, no need to change the heat range if you dont want to
April 27, 20233 yr Author 35 minutes ago, faussy said: You have a plug with a solid terminal. You can get the same plug either threaded or with a removable nut, no need to change the heat range if you dont want to Good to know
June 4, 20233 yr On 4/27/2023 at 3:18 PM, slowrider said: Think I found the answer BP5ES NGK BP5ES Champion N11YC Have been the recommended spark plugs to fit to a Sherpa T since day one.
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