<div dir="ltr">At what throttle position does the backfiring occur? One possible cause is the timing is too far advanced. Are you able to check the timing at the point of backfire? Has any work to the valve train been done prior to the backfiring? I would suggest resetting all of the valve clearances.<div>Harold</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, Sep 25, 2025 at 2:21 PM warthodson--- via Healeys <<a href="mailto:healeys@autox.team.net">healeys@autox.team.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:"Comic Sans MS",sans-serif;font-size:16px"><div dir="ltr">A club member's BJ8 is backfiring thru the carbs, HD8's. We have adjusted the timing & enrichened the carbs. I plan to revisit both of those settings. What else might be causing this?</div><div dir="ltr">Thanks,</div><div dir="ltr">Gary H. </div></div></div>_______________________________________________<br>
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