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Search found 8 matches

by Marcos
Mon Jan 27, 2020 10:45 am
Forum: Yamaha Virago XV1100
Topic: 1995 XV1100 Pilot Jets Mikuni BST 40 Carbs [CLOSED]
Replies: 1
Views: 2228

1995 XV1100 Pilot Jets Mikuni BST 40 Carbs [CLOSED]

Dear Sirs, I messed up. I removed the Pilot Screws of the dual Mikuni BST 40 carbs without counting their turns. As they were set at factory spec's. Now I need help to reset them. Thanks in advance. Marcos
by Marcos
Wed Nov 27, 2019 4:16 pm
Forum: Yamaha Virago XV1100
Topic: 1995 Virago XV1100 carburetors - Jets (CLOSED)
Replies: 9
Views: 1304

Re: 1995 Virago XV1100 carburetors - Jets

ViragoJoe, sorry my late reply. I have no option. When unscrewing the Main Jet the Needle Jet also turns. Like grabbed with each other. Despite I have already reassemble the carbs but not reinstalled then in the engine I'm still studying if some compensation may be accetable. Like increase a little ...
by Marcos
Fri Nov 15, 2019 10:53 am
Forum: Yamaha Virago XV1100
Topic: 1995 Virago XV1100 carburetors - Jets (CLOSED)
Replies: 9
Views: 1304

Re: 1995 Virago XV1100 carburetors - Jets

Virago Joe,
Yes, we are running standard exaust. I saw a video showing the Main Jets replacement. Just screwing out. My Jets dont screw out. I will run the 127,5 instead of 125. The other carb is ok with the 122,5. Question: is it necessary any action do compensate this difference?
Thanks,
Marcos
by Marcos
Thu Nov 07, 2019 1:19 pm
Forum: Yamaha Virago XV1100
Topic: 1995 Virago XV1100 carburetors - Jets (CLOSED)
Replies: 9
Views: 1304

Re: 1995 Virago XV1100 carburetors - Jets

ViragoJoe I know what Jet goes in each carb. I just want to replace a 127,5 Jet for the correct 125. I unscrewed the Main Jet but it twists with the Needle Jet like twins. I tried to pull the set off but it didn't work. It seems that they are rusty. I grabbed the the Needle Jet side at the venturi a...
by Marcos
Thu Nov 07, 2019 9:05 am
Forum: Yamaha Virago XV1100
Topic: 1995 Virago XV1100 carburetors - Jets (CLOSED)
Replies: 9
Views: 1304

Re: 1995 Virago XV1100 carburetors - Jets

ViragoJoe,

both carburetors have the same construction. I mentioned #2 just because of the Jet. #1 has Jet 122,5 and that's why I will not disassemble. But this part is equal for both.

Unscrewing didn't solve the problem.
by Marcos
Wed Nov 06, 2019 4:20 pm
Forum: Yamaha Virago XV1100
Topic: 1995 Virago XV1100 carburetors - Jets (CLOSED)
Replies: 9
Views: 1304

1995 Virago XV1100 carburetors - Jets (CLOSED)

Dear Sirs,

I'm working on 2 Mikuni BST40 from a 1995 Virago XV1100 and couldn't disassemble the Needle Jet and the Main Jet. I would like to take apart at least the kit of #2 carburetor because someone changed the Main Jet to #127.5. Please, is there anyone that could help me?
by Marcos
Thu Oct 03, 2019 3:50 pm
Forum: Yamaha Virago XV1100
Topic: Virago 1100 year 1995: AIS+MCV [SOLVED]
Replies: 3
Views: 917

Re: Virago 1100 year 1995: AIS+MCV

ViragoJoe, thank you for the tips. Please I need some additional help. 1- Do you know if AIS makes a big difference in the bike performence like reducing mileage or improving smooth acceleration or any other thing? 2- Besides U.S. Yamaha dealers can you tell any other shop in U.S. to buy the AIS and...
by Marcos
Sat Sep 28, 2019 12:14 pm
Forum: Yamaha Virago XV1100
Topic: Virago 1100 year 1995: AIS+MCV [SOLVED]
Replies: 3
Views: 917

Virago 1100 year 1995: AIS+MCV [SOLVED]

Hi everybody.

I am repairing the carburetors of a Virago 1100 year 1995. During disassemble I noticed that the complete Air Induction System and the Mixture Control Valve are missing. I live in Brasil. I would like to restore these systems. Could you please inform how can I get these parts?