Mikuni BST40 Flat Slide Diaphragm Replacement Yamaha Virago XV750 XV1100 1988 and up
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- เผยแพร่เมื่อ 11 ก.พ. 2022
- This is a quick video showing how to replace the slide diaphragm on a Mikuni BST40 flat slide carburetor as found on the Yamaha Virago XV750 and XV1100 from 1988 up. This part (slide and diaphragm) is available from Yamaha for around $189 - seeing as the bike requires two, this is an expensive proposition.
I purchased a 'replacement' slide and diaphragm from Amazon which turned out to be nowhere near close (I show that part in this video for your reference).
The part that fits came from JBM Industries out of Ohio (great to see American made parts for a change). They fit well, and seem to be functioning properly. I have yet to reinstall on the bike, but I see no reason they will not behave properly, however I will update these comments when I get the carbs back on and synched up.
I am in no way associated with JBM, I have not been compensated in any way, I found the parts on line and I purchased them - I have made this video to help others who may be going through the same search that I have just gone through and can maybe save you some time and money.
UPDATE 2/28/22:
I have started up the bike and the diaphragms are working fine. I watched both slides actuate in a steady and deliberate manner. Will probably work even better once the temperatures get back above freezing. - ยานยนต์และพาหนะ
This helped me a lot... Almost ordered the junk Amazon one until I found your video.
Thanks for Sharing
Nice video
Parfait !!
Merci beaucoup, mon plaisir
You didn't need to seal over the rivets ??
They did not tell me to do that with their instructions, however if you feel it would add security I suppose you could, however mine have been operating fine for over a year now without it. Hope this helps. Stay safe.
I get it. When spinning top 90 degrees, the Video is a joke
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What is that comment about needle order being wrong in manual! What? They have to come back off! This has to be a joke.