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Post by sidney81 on Mar 31, 2023 10:28:25 GMT 1
Great work 👍👍
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Post by lcmarky on Mar 31, 2023 11:04:00 GMT 1
What are you doing with all your spare time now?
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Post by sidney81 on Mar 31, 2023 18:24:35 GMT 1
What are you doing with all your spare time now? still got bits to do to mine and my brother's,ready for Dyno set up , and get the 350 top end on my air cooled 😊 |
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Post by lcmarky on Apr 5, 2023 17:02:02 GMT 1
 Repositioning the Koso temp sender. This is a 1/8BSP x 28 TPI Taper thread so I’ve been careful to get the correct tap (eventually) so I can use the taper to crest the lock n seal. |
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Post by lcmarky on Apr 5, 2023 17:29:19 GMT 1
 Bit of Hylomar blue on the threads.  |
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Post by lcmarky on Apr 6, 2023 17:13:34 GMT 1
Well the good news is that the motor runs.
Nikkon pipes have a lovely crackle and rasp to them.
Bad news... flamin temp sender leaks so some ThreeBond going on there as a starter.
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Post by Tobyjugs on Apr 6, 2023 17:23:29 GMT 1
I always use loctite 542 or 577. Never a problem with thread leakages.
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Post by lcmarky on Apr 6, 2023 18:31:50 GMT 1
I always use loctite 542 or 577. Never a problem with thread leakages. To be fair my Hylomar is years old, so could have an impact. got a few days on it now, so hopefully will get plenty done in between BSB on the telly. |
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Post by lcmarky on Apr 8, 2023 8:10:43 GMT 1
 Attempt #2. Spot faced the sender thread and modified a copper washer to give a compression seal on top of the thread. ThreeBond applied. Seems ok after a few heat cycles and overnight. |
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Post by lcmarky on Apr 8, 2023 8:11:00 GMT 1
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Post by lcmarky on Apr 8, 2023 12:48:05 GMT 1
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Post by lcmarky on Apr 8, 2023 12:51:22 GMT 1
 LED sweepers |
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Post by lcmarky on Apr 8, 2023 12:52:25 GMT 1
 Courtesy of this little gadget to replace the Yam indicator relay. |
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Post by lcmarky on Apr 9, 2023 10:17:53 GMT 1
So all electrics are now done and I shall wrap the loom prior to final tank fitting.
Changed the jets from 38 & 145 to 45 & 170 as these are the smallest I've got in my RS spares. Bike is so much better on tick over and general throttle crispness, so will leave these for now until it gets on the dyno. It was hunting a bit off choke with the original jest which has now gone.
Slight overflow from the carbs still & I figure as they're sitting an an angle so I'll reduce the float height a mm or so and re-try.
Shame I can't seem to upload a video as these pipes sound great.
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Post by Tobyjugs on Apr 9, 2023 11:52:32 GMT 1
I always use loctite 542 or 577. Never a problem with thread leakages. To be fair my Hylomar is years old, so could have an impact. got a few days on it now, so hopefully will get plenty done in between BSB on the telly. Hylomar is still great stuff when used in the correct application. |
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Post by lcmarky on Apr 9, 2023 13:36:44 GMT 1
To be fair my Hylomar is years old, so could have an impact. got a few days on it now, so hopefully will get plenty done in between BSB on the telly. Hylomar is still great stuff when used in the correct application. There's various grades or colours I recall & best to be 'in date'. |
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crogthomas
Drag-strip hero
In his shed....
Posts: 264
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Post by crogthomas on Apr 10, 2023 8:59:42 GMT 1
Well the good news is that the motor runs. Nikkon pipes have a lovely crackle and rasp to them. Bad news... flamin temp sender leaks so some ThreeBond going on there as a starter. Are you sure the koso sensor is BSP? Nearly every single aftermarket sensor is 1/8 NPT (27tpi). |
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Post by lcmarky on Apr 10, 2023 9:18:37 GMT 1
I checked the TPI on the KOSO sensor and made it 28.
1/8 NPT is indeed 27 TPI.
You could well be right & I did have a scan of the KOSO doc's just in case they mentioned it. What's more likely in the US?
Fortunately it's sealed fine now, but I will double check the other sensor out of interest.
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crogthomas
Drag-strip hero
In his shed....
Posts: 264
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Post by crogthomas on Apr 10, 2023 9:38:20 GMT 1
NPT is an American standard, and is really common everywhere, for some reason. But if you've measured it as 28tpi then it must be BSP.
An odd choice of thread for them. And a pain if you ever want to change to a different system, which will probably have a NPT sensor.
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Post by lcmarky on Apr 10, 2023 10:26:37 GMT 1
NPT is an American standard, and is really common everywhere, for some reason. But if you've measured it as 28tpi then it must be BSP. An odd choice of thread for them. And a pain if you ever want to change to a different system, which will probably have a NPT sensor. I'll check the TPI under my illuminated magnifier & report back.. |
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Post by lcmarky on Apr 10, 2023 10:34:45 GMT 1
 Quick dress rehearsal… |
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Post by lcmarky on Apr 10, 2023 10:45:41 GMT 1
I'd prefer a new sensor thread for a definitive answer as to be honest both the 27 & 28 TPI gauges are a pretty good match although 28 to me seems a tad closer.
This sensor was screwed into the Yam head tapped hole which I believe now to be 26tpi parallel, so like I say may not quite be 'perfectly' original now.
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Post by Tobyjugs on Apr 10, 2023 11:32:38 GMT 1
Hi Mark i can understand you wanting it to be perfect, but don't forget the old saying " If it aint broke don't fix it ".  |
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Post by lcmarky on Apr 10, 2023 12:25:32 GMT 1
Hi Mark i can understand you wanting it to be perfect, but don't forget the old saying " If it aint broke don't fix it ". or "If it doesn't leak don't disturb it!" |
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Post by sidney81 on Apr 10, 2023 17:35:12 GMT 1
Bike looks great 👍👍😃.
As for them sender's I've now done X2 I made a boss up and welded it on to my brother's rad and tapped it 1/8 th bsp nipped up lovely, not saying it's correct but it worked 🙂
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Post by lcmarky on Apr 17, 2023 14:54:56 GMT 1
 Clock and GPS sensor mount.. will make it up as I go with this one |
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Post by 4l04ever on Apr 17, 2023 15:46:05 GMT 1
I'd prefer a new sensor thread for a definitive answer as to be honest both the 27 & 28 TPI gauges are a pretty good match although 28 to me seems a tad closer. This sensor was screwed into the Yam head tapped hole which I believe now to be 26tpi parallel, so like I say may not quite be 'perfectly' original now. I think the thread may be M10 x 1.00 which would be 25.4 tpi parallel, I have a die somewhere to try rethreading a 1/8" NPT/BSP to M10 x 1.00 |
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Post by lcmarky on Apr 17, 2023 18:23:14 GMT 1
I'd prefer a new sensor thread for a definitive answer as to be honest both the 27 & 28 TPI gauges are a pretty good match although 28 to me seems a tad closer. This sensor was screwed into the Yam head tapped hole which I believe now to be 26tpi parallel, so like I say may not quite be 'perfectly' original now. I think the thread may be M10 x 1.00 which would be 25.4 tpi parallel, I have a die somewhere to try rethreading a 1/8" NPT/BSP to M10 x 1.00 KOSO are American which means I doubt it's metric. You could be right however & I'm pretty sure the TPI is 28. Either way I now have a tapered tap & a tapered lead in parallel tap. No leaks so far so I'm happy enough. I upped the head bolts torque too as it was seeping a bit from the front two centre bolts & all OK still. |
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Post by Tobyjugs on Apr 17, 2023 20:10:14 GMT 1
I will second the opinion of Rob, i'm pretty sure i ordered M10 temperature sensors from Koso
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Post by lcmarky on Apr 18, 2023 8:16:17 GMT 1
I will second the opinion of Rob, i'm pretty sure i ordered M10 temperature sensors from Koso Maybe there is more than one type? Also, having wound my first KOSO sensor into the LC head and measured it afterwards (yes I know that was stupid in hindsight!) my TPI may well be spurious now.. |
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