Manfred's TR1. Discussion Boards - Carb Float Bowl Drain Plug

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02.05.25 at 22:36:06

Manfred's TR1. Discussion Boards › TR1 Discussion Boards › General technical TR1 discussions
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Carb Float Bowl Drain Plug (Read 464 times)

Odradek TR1 Board Newbie Posts: 25 Bike: XV920R	Carb Float Bowl Drain Plug 02.07.24 at 19:46:57 The float bowl drain plug screws on my carbs are stripped and I'll have to drill them out. Replacement part for this 1982 bike is 4X71419101, but there are none available here in UK and I'd have to order from CMSNL in Netherlands which is quite a bit more expensive. The part number for later bikes is 12R1419100, and is available at a much lower price. Does anyone know if they are interchangeable ? Or do I have to go with the older part number ? Thanks
Odradek TR1 Board Newbie Posts: 25 Bike: XV920R	« Last Edit: 02.07.24 at 22:48:39 by Odradek »
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Anja-D TR1 Board Senior Member carpe diem Posts: 466 Gender: Bike: 1981 TR1. (5A8), modified with XV1100 (3LP) Eng.	Re: Carb Float Bowl Drain Plug Reply #1 - 02.07.24 at 20:54:22 Hello Odradek, here is the information for the drain plug, seen at MSP (Motorcycle Spare Parts (NL) https://www.motorcyclespareparts.eu/de/yamaha-ersatzteile/1989-xv1100-virago-motorrad/vergaser See also the pictures, the lower one shows a section of the parts usage record. Hope this helps. With kind regards Anja --------------------------------- hallo Odradek, hier die Infos für die Ablassschraube, gesehen bei MSP (Motorcycle Spare Parts (NL) https://www.motorcyclespareparts.eu/de/yamaha-ersatzteile/1989-xv1100-virago-motorrad/vergaser Siehe auch die Bilder dazu, das untere zeigt einen Ausschnitt aus dem Teileverwendungsnachweis. Hoffe das hilft weiter. Mit liebem Gruss Anja
	Vergaserablass.jpg Vergaserablass_2.jpg Pictures below may be scaled. Click links or pictures for original size \| Click here for all attachments TR1 seit 1982, die aktuelle seit 1988, schraube und fahre selbst
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Odradek TR1 Board Newbie Posts: 25 Bike: XV920R	Re: Carb Float Bowl Drain Plug Reply #2 - 02.07.24 at 22:37:37 Thank you Anja. I've just discovered that Yamaha switched from Hitachi to Mikuni carbs for XV bikes in 1988, hence the different part numbers. As my bike is 1982, I think I'll need to go for the more expensive part, 4X71419101. More expensive as they are hard to find now.
Odradek TR1 Board Newbie Posts: 25 Bike: XV920R
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hornschorsch TR1 Board Extraterrestrial Member Posts: 2882 Gender: Bike: TR1, SR500, XJ650-Turbo, RD350-YPVS, R[DG]500	Re: Carb Float Bowl Drain Plug Reply #3 - 03.07.24 at 10:53:06 How many thousands is the difference between the two kinds of screws?
	Gruss, Schorsch Fahrt so schnell ihr könnt, so lange ihr noch könnt! (Uli Peil im XJ-Forum) Das Ding ist völlig unnötig! (Roel im TR1-Forum)
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Triwinger TR1 Board Full Member Posts: 122 Gender:	Re: Carb Float Bowl Drain Plug Reply #4 - 03.07.24 at 20:01:29 Hi Odradek, hi all, the 4X71419101 drain plug (about 12.00 € at cmsnl.com) has a M6x1 thread, whereas many other spare part drain plugs (OEM, available for 3.50 to 10.00 €) are equipped with M6x0.75 threads. Therefore you will have to stay with the Yamaha part in order to fit correctly into the threads of your float bowl. Cheers, Roland
Triwinger TR1 Board Full Member Posts: 122 Gender:
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Odradek TR1 Board Newbie Posts: 25 Bike: XV920R	Re: Carb Float Bowl Drain Plug Reply #5 - 03.07.24 at 22:39:58 Two new Hitachi drain plugs are on their way from CMSNL. Managed to drill and remove the old ones this morning. Now I've found the main jets are not what the manual says they should be. Will have to investigate that.
Odradek TR1 Board Newbie Posts: 25 Bike: XV920R
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Manniku TR1 Board Full Member Posts: 117	Re: Carb Float Bowl Drain Plug Reply #6 - 03.07.24 at 22:57:59 What size do they have?
Manniku TR1 Board Full Member Posts: 117	Ein Leben ohne Respekt ist keins.
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Triwinger TR1 Board Full Member Posts: 122 Gender:	Re: Carb Float Bowl Drain Plug Reply #7 - 03.07.24 at 23:13:49 Hi Odradek, hi all, when checking the carbs, I found it helpful to use some OEM overhaul kits ("TR1 Vergaser Kit"), e. g. the ones made by Keyster. You can get them at "youngtimer-bikes-shop.de" for example (alias forum member "schraubaer"). Those kits include all jets and sealings. (Everything that could eventually be destroyed and/or mixed up by former bike owners.) And the best is: Two drain plugs are included, too... . Cheers, Roland
Triwinger TR1 Board Full Member Posts: 122 Gender:
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Odradek TR1 Board Newbie Posts: 25 Bike: XV920R	Re: Carb Float Bowl Drain Plug Reply #8 - 03.07.24 at 23:43:19 My bike is a 1982 XV920R. I have Clymer and Haynes manuals, and both say 124 front and 126 rear. My bike has 126 front and 128 rear. It was running fine last time it was on the road so maybe I'll stick with that.
Odradek TR1 Board Newbie Posts: 25 Bike: XV920R
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Odradek TR1 Board Newbie Posts: 25 Bike: XV920R	Re: Carb Float Bowl Drain Plug Reply #9 - 03.07.24 at 23:44:59 I have two carb rebuild kits, and hadn't looked through them yet. But yes, they do have drain plugs !!! Oh well, I have two more on the way. Always good to have a few spares !
Odradek TR1 Board Newbie Posts: 25 Bike: XV920R
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