07-26-2021, 10:46 AM | #1 |
Join Date: Dec 2020
Location: Dayton Pa.
Posts: 941
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hello from buzz
Just wondering putting a new pipe on TBR7, will i need to change jet in carburetor? Thanks
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07-26-2021, 12:08 PM | #2 |
Join Date: Oct 2016
Posts: 405
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Since you are de-restricting (no cat, free flowing muffler) your exhaust, it's common to go with larger jets to take advantage of the increased air flow though your motor. It also depends on what you had in it previously, if you had too much (a larger size than necessary), then what you have may be sufficient. It also depends on your altitude. I'm at 6000 ft and a 108 main jet runs like a bat out of hell...with a new exhaust...but if you are at a lower altitude, you may need a 115 or higher.
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07-28-2021, 10:43 PM | #3 | |
Join Date: Dec 2020
Location: Dayton Pa.
Posts: 941
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Thanks
Quote:
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07-29-2021, 09:02 AM | #4 |
Join Date: Mar 2021
Location: New Hampshire
Posts: 242
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I would say most definitely, especially if you are still running the stock jetting and are much higher than sea level. These bikes are all pretty lean from the factory already.
I actually need to put my exhaust on also, can't wait to see what kind of difference it makes.
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07-29-2021, 06:46 PM | #6 |
Join Date: Dec 2020
Location: Dayton Pa.
Posts: 941
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Thanks so much, just got done. Will check out in the morning.
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07-29-2021, 10:38 PM | #7 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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Typical jetting changes when installing an exhaust is 1 full step up in jet size on the main (5 up numerically, aka 105 to a 110), and sometimes 2 if paired with intake modification. Sometimes it may need a small change on the idle mixture and/or pilot jet.
I always suggest starting off on the rich side. For most bikes around the sea level to at least 4000ft a 115 main works well with an exhaust. Good place to start. Adjust from there.
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07-30-2021, 12:21 AM | #8 |
Join Date: Dec 2020
Location: Dayton Pa.
Posts: 941
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Thanks Megadan
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08-02-2021, 08:58 PM | #10 |
Join Date: Oct 2016
Posts: 405
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Yeah, if you got your exhaust from the link for the $65 one, I just checked and they are sold out! I agree, for the HP gain...it was the best $65!
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08-02-2021, 10:46 PM | #11 |
Join Date: Dec 2020
Location: Dayton Pa.
Posts: 941
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oh that stinks
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