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 Post subject: Re: 1972 H1-B
PostPosted: Wed Sep 18, 2024 10:27 am 

Joined: Tue Apr 07, 2020 3:24 am
Posts: 127
Location: El Dorado Arkansas
Went back and set my timing, seemed a little sluggish, I set it at .126 BTDC, had to use my calipers, didn't have a dial gauge, seems to be more responsive now, might pick up a dial gauge at HF just to double check.


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 Post subject: Re: 1972 H1-B
PostPosted: Wed Sep 18, 2024 11:04 am 

Joined: Tue Apr 07, 2020 3:24 am
Posts: 127
Location: El Dorado Arkansas
How about a view from the left side.
Attachment:
h1 left side.JPG


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 Post subject: Re: 1972 H1-B
PostPosted: Thu Sep 19, 2024 7:55 am 

Joined: Tue Apr 07, 2020 3:24 am
Posts: 127
Location: El Dorado Arkansas
https://www.facebook.com/groups/3952323 ... &ref=notif


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 Post subject: Re: 1972 H1-B
PostPosted: Tue Sep 24, 2024 1:49 pm 

Joined: Tue Apr 07, 2020 3:24 am
Posts: 127
Location: El Dorado Arkansas
Update: After putting about 25 miles on it, the bike seems to be running great, only problem I have found is a couple drops of oil under the injection line where it connects at the LH cylinder. Need to figure out if it's the washers or where the line screws into the fitting.


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 Post subject: Re: 1972 H1-B
PostPosted: Fri Nov 15, 2024 12:42 pm 

Joined: Tue Apr 07, 2020 3:24 am
Posts: 127
Location: El Dorado Arkansas
Is there anyone out there that rebuilds the injection lines?, I know there are rebuild kits out there but would rather let someone with experience rebuild them.


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 Post subject: Re: 1972 H1-B
PostPosted: Fri Nov 15, 2024 4:35 pm 

Joined: Wed Aug 10, 2011 4:10 pm
Posts: 301
Location: Knottingley, West Yorkshire UK
Hambone1962 wrote:
Is there anyone out there that rebuilds the injection lines?, I know there are rebuild kits out there but would rather let someone with experience rebuild them.

Yes Ade Critten in the Isle Of Man rebuilds them
You can whatts App him on +447624 478353

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Wine for my men we ride at dawn


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 Post subject: Re: 1972 H1-B
PostPosted: Sat Nov 16, 2024 9:31 am 

Joined: Tue Apr 07, 2020 3:24 am
Posts: 127
Location: El Dorado Arkansas
Thanks, Scouse, good to know but looking for someone in U.S.


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 Post subject: Re: 1972 H1-B
PostPosted: Sat Nov 16, 2024 4:50 pm 

Joined: Tue Apr 07, 2020 3:24 am
Posts: 127
Location: El Dorado Arkansas
What got my attention on the oil lines, I let the bike sit about 2 weeks, when I cranked it up, I got heavy smoke out the left exhaust for about 2 minutes. I'm not sure if I have a weak spring or a leaky valve. I had a mark on the clear oil view hose on the oil tank, didn't seem to have lost any oil out of the tank, don't need a leaky valve and have an oil lock.


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 Post subject: Re: 1972 H1-B
PostPosted: Sun Nov 17, 2024 8:40 am 
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Joined: Tue Jun 07, 2011 6:36 am
Posts: 2714
Location: Dandridge, TN, USA
You can test for leaking valve by hanging it by filling it and then hang it from the case banjo overnite. If it drips, then it needs attention.
New springs and balls are on eBay... it is an easy fix for H1B.

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 Post subject: Re: 1972 H1-B
PostPosted: Sun Nov 17, 2024 9:38 am 

Joined: Tue Apr 07, 2020 3:24 am
Posts: 127
Location: El Dorado Arkansas
mraxl wrote:
You can test for leaking valve by hanging it by filling it and then hang it from the case banjo overnite. If it drips, then it needs attention.
New springs and balls are on eBay... it is an easy fix for H1B.


Thanks a million, Mraxl, I didn't think about hanging it up, will give that a try, I'm definitely going to rebuild them for peace of mind.


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