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Post by buck1963 on Sept 2, 2023 19:12:11 GMT 1
hiya folks,just to put my mind at ease,I've fitted a pair of pwk 28 carbs on my 31k valve motor,when I'm starting it from cold with the choke it pretty much fires up straight away,my worry is once it started the revs rise realy quickly(almost like the bike has an air leak)once I knock the choke off it settles back to normal tickler,anybody else have this happen? Thanks
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Pwk choke
Sept 2, 2023 23:11:12 GMT 1
via mobile
Post by midlifecrisisrd on Sept 2, 2023 23:11:12 GMT 1
Yes
It's why I changed to a cable operated choke to allow more control
Steve
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Post by buck1963 on Sept 3, 2023 7:05:36 GMT 1
Yes It's why I changed to a cable operated choke to allow more control Steve Thanks for the reply Steve,that's what I intend to do next,that's put my mind at rest |
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Post by stusco on Sept 3, 2023 9:05:20 GMT 1
If i start mine with both chokes it does that if i knock one off as soon as it starts its fine
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Post by jessy03 on Sept 3, 2023 12:07:29 GMT 1
I fitted a cable operated choke, much easier to control/easier to operate  |
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Post by rigga on Sept 3, 2023 13:34:05 GMT 1
Never noticed racing away, as above I only use the left choke, but I'd expect some increase in revs anyway.
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Post by cb250g5 on Sept 3, 2023 14:09:27 GMT 1
My PWK's are on cable chokes, but it doesn't rev up when they are on
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Pwk choke
Sept 3, 2023 22:18:05 GMT 1
via mobile
Post by reedx on Sept 3, 2023 22:18:05 GMT 1
I fitted a cable operated choke, much easier to control/easier to operate What model is that cable choke off? Still need to decide on a choke for my PWK's. Colin |
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Post by midlifecrisisrd on Sept 3, 2023 22:26:40 GMT 1
I used the same thing 31k switchgear actually has the threaded holes for the choke lever to bolt onto Search ebay for Yamaha XV left switch Steve  |
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Post by cb250g5 on Sept 3, 2023 22:29:43 GMT 1
I'm using R6 switches Like www.ebay.co.uk/itm/166167610366Electrics were easy as well, just made up a 6 inch loom to connect into original wiring, so nothings modified and can all be put back if needed. |
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Post by jessy03 on Sept 4, 2023 11:23:49 GMT 1
Early XS and XJ models had the same switchgear with the choke option, LC type were cast in the switchgear whereas the ypvs was separate, some look the same but aren’t so have a good look. Cable wise I’ve found on that fits but you need to add a 5mm spacer or shorten the cable by 5mm ish, I’ll dig it out.  |
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Post by andy748 on Sept 4, 2023 15:47:26 GMT 1
Hi Steve, if you need a remote choke, I have one off a Fzr400, switch is same as n1/f1, has a rgv250 cable fitted. Andy.
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Post by buck1963 on Sept 4, 2023 20:00:40 GMT 1
Hi Steve, if you need a remote choke, I have one off a Fzr400, switch is same as n1/f1, has a rgv250 cable fitted. Andy. now then mate,hope your well,thanks for the offer,I have already got a thumb choke fitted,just waiting for the conversion bits off fleabay |
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Post by JonW on Sept 9, 2023 2:05:15 GMT 1
Early XS and XJ models had the same switchgear with the choke option, LC type were cast in the switchgear whereas the ypvs was separate, some look the same but aren’t so have a good look. Cable wise I’ve found on that fits but you need to add a 5mm spacer or shorten the cable by 5mm ish, I’ll dig it out. Interesting info, I made one up so it would be good know what thats off as I have a mate who is making one up and needs a cable. |
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Post by jessy03 on Sept 9, 2023 10:01:11 GMT 1
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Post by JonW on Sept 9, 2023 14:31:19 GMT 1
Cool, thanks mate!
I'll pass the info to him, might get a set for me as well. I used part PWK stuff, part TZR cables and some other bits i had lying around. it works well but a simpler solution might be good to have on hand as I have another set of PWKs i might one day use. hmm...
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Post by JonW on Sept 11, 2023 2:27:59 GMT 1
Silly question.. I assume the spacer is fitted at the the carb ends? |
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Post by jessy03 on Sept 11, 2023 7:26:19 GMT 1
Yes Jon, just a 5mm ish spacer as the cable is slightly too long. 👍🏼
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