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What makes a WD pop when throttle is closed?
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kevin LA-CA View Drop Down
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Joined: 12 Sep 2009
Location: california
Points: 80 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kevin LA-CA Quote  Post ReplyReply Direct Link To This Post Topic: What makes a WD pop when throttle is closed?
    Posted: 5 hours 14 minutes ago at 8:39pm
I know that the WDs always pop when you close the throttle quickly. Mine really pops. Loud - 2 or 3 bangs.

Magneto ignition. I have timed by ear - don't have a timing light. Also aftermarket marvel carb with adjustable main jet.

If I got found a light, where is the timing mark?
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
Location: illinois
Points: 90498 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 4 hours 52 minutes ago at 9:01pm
you dont need a light.. You can static time it at TDC on #1 cylinder.... When started, the MAG impulse will change that to the FIRE mark..

i think your timing mark is the set screw on the front pulley, pointed straight down... but others will confirm.
Like them all, but love the "B"s.
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SteveM C/IL View Drop Down
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Points: 8946 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 3 hours 8 minutes ago at 10:45pm
Mostly the idle jet setting I think. POP BOOM POP! Yep they are great!
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