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B44 shooting star twist grip #791098 11/23/19 9:01 pm
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Jon law Offline OP
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Hi again - hoping someone can help. I had to remove the throttle / twist grip today to investigate the stiff action. Inside I found a folded steel clip with a hole in it and what I think might be the chewed remains of a spring ? I can’t find any diagrams showing how these parts fit together and whether there should even be a spring.
I think the metal clip must sit in the bottom of the housing with the hole over the Adjuster bolt - but which way round ? Open end facing forwards or the curved end facing forward ? It will fit either way but I guess only one is correct !

Any help appreciated............

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Re: B44 shooting star twist grip [Re: Jon law] #791100 11/23/19 9:17 pm
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kommando Online Content
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Think it's what remains of the friction device that allows you to have a crude cruise control. If it's original then it was a AMAL twistgrip, I buy new replacement and setup then up so a steady throttle opening is just a gentle pull, let go and it slowly shuts. A stuck open throttle is not good hence no messing with old worn out rubbish in this part of the bike.

Re: B44 shooting star twist grip [Re: Jon law] #791106 11/23/19 10:03 pm
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Jon law Offline OP
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That makes sense - now I can see how turning the bolt underneath would lift the clip against the body and hold it open. The spring had disintegrated and was binding the action up.. think l,ll remove the steel clip and lock bolt now I know they aren’t needed, clean it up and see if it works. If not I think a new one is in order.
Thanks again kommando.

Re: B44 shooting star twist grip [Re: Jon law] #791135 11/24/19 2:47 am
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Villiers Online Content
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The friction thingie goes back to the days of hand signals. You couldn’t have a throttle that slammed shut every time you gave a signal otherwise the traffic behind you would roll straight over you. A throttle that stayed where you wanted it made riding much easier.
It was even trickier when hand gear changes were common. You certainly didn’t want the engine shutting down each time you changed gear.
Getting the throttle friction adjusted just so was one of those little things that made riding so much easier.

Re: B44 shooting star twist grip [Re: Jon law] #791141 11/24/19 8:32 am
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Allan Gill Offline
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If yours is original and in otherwise good condition I’d be looking at buying a second hand unit and robbing the spring plate from that. I’ve found some crappy after market throttles, I’ve also found the AMAL ones very good or the AMAL style ones.


beerchug
Re: B44 shooting star twist grip [Re: Jon law] #791150 11/24/19 11:18 am
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Jon law Offline OP
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Ok, thanks for the insight. I cleaned out the inside of the housing and removed the decades old hard grease and bits of spring. I found that the bits of spring had scored the aluminium twister where it turns in the housing making the action lumpy. A quick go with the file and wet and dry and it’s as good as new ! Snaps back a treat now, really pleased as I wanted to keep as many of its original parts as possible.

Allan - I see you’re a West Yorkshire lad, do you get to Squires bar at Sherburn much ? I go most weeks in the summer so could show you the B44 if you’re there. Dozens of lovely British bikes there on Thursday evening along with the classic Jap stuff.

Cheers.

Re: B44 shooting star twist grip [Re: Jon law] #791193 11/24/19 8:49 pm
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Allan Gill Offline
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I get there on occasion but it’s relative to work load, family commitments etc. I’m near Pont’y so not too far from you. Hopefully will start to get some more miles under my belt next year, this one has been a busy one so we will see....


beerchug

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