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1951 Panhead kicker collapsing

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dream-machine
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Joined: Sat Apr 25, 2009 2:49 am
Bikes: 1951 panhead
Location: Pittsburgh, PA

1951 Panhead kicker collapsing

#1

Post by dream-machine » Sun Nov 14, 2010 4:28 am

Sometimes (most of the time) my 51' Panhead kicker collapses when I try to kick start it. Engine was rebuilt, less than 500 miles on it, valves were adjusted and now it seems almost too easy to kick. Not getting compression I used to have. When I kick it I hear a whooshing sound. It runs great once it's started but there are times that I have to kick and kick and kick to get it started and many of those times I get the collapsing. Mechanic says nothing is wrong but it over the years I've owned the bike it's always been tough to kick it over because I had a lot of resistance. Since the rebuild I don't have that same compression. Any ideas?



panhead_kicker
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Re: !951 Panhead kicker collapsing

#2

Post by panhead_kicker » Sun Nov 14, 2010 4:40 am

dream-machine wrote:Sometimes (most of the time) my 51' Panhead kicker collapses when I try to kick start it. Engine was rebuilt, less than 500 miles on it, valves were adjusted and now it seems almost too easy to kick. Not getting compression I used to have. When I kick it I hear a whooshing sound. It runs great once it's started but there are times that I have to kick and kick and kick to get it started and many of those times I get the collapsing. Mechanic says nothing is wrong but it over the years I've owned the bike it's always been tough to kick it over because I had a lot of resistance. Since the rebuild I don't have that same compression. Any ideas?
Maybe the valves were incorrectly adjusted , not allowing them to close completely? There are Several conversations in this forum on adjusting valves/push rod adjustment. Do a little searching. Is your 51 motor stock?

dream-machine
Posts: 14
Joined: Sat Apr 25, 2009 2:49 am
Bikes: 1951 panhead
Location: Pittsburgh, PA

Re: !951 Panhead kicker collapsing

#3

Post by dream-machine » Sun Nov 14, 2010 4:43 am

Hi, Thanks for the reply. Yes it's a stock motor but I think if the valves weren't adjusted correctly it wouldn't run as good as it does once it's started.

FlatHeadSix
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Re: !951 Panhead kicker collapsing

#4

Post by FlatHeadSix » Sun Nov 14, 2010 4:58 am

your clutch is slipping, adjust it, or investigate to find out why it slips.

mike

dream-machine
Posts: 14
Joined: Sat Apr 25, 2009 2:49 am
Bikes: 1951 panhead
Location: Pittsburgh, PA

Re: !951 Panhead kicker collapsing

#5

Post by dream-machine » Sun Nov 14, 2010 5:22 am

Thanks Mike. I never thought about the clutch slipping but it seems plausible. I'll check it out.

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