Carb conversion for TBI

FGR01
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6139
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Location
USA
Fantasy

Finally, an actual, working kit to readily convert a TBI to a carb.   +2HP on a 125 right out the box.

 

 

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8/12/2026 9:25pm Edited Date/Time 8/12/2026 9:25pm

It’s really funny.  Dudes post “what’s the next innovation” as we go back to carbs, cable clutches and 2 strokes.

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8/12/2026 10:16pm

It’s really funny.  Dudes post “what’s the next innovation” as we go back to carbs, cable clutches and 2 strokes.

And blue printed Power Vakves.  

1
8/12/2026 11:24pm

I want a Boost Bottle.  And a torque bar, please.  Anyone for fork Gaiters?

4
Glory831Guy
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Location
san francisco, CA, USA
8/13/2026 12:17am Edited Date/Time 8/13/2026 12:22am

It’s really funny.  Dudes post “what’s the next innovation” as we go back to carbs, cable clutches and 2 strokes.

I've ridden two strokes with tons of bottom/mid power and they are probably easier to ride for long motos, and overall faster for MX/Offroad. If You're riding pure MX on tracks that are deeply ripped and disked, then having some hit and explosive power can help you do some heater laps and hit big jumps while changing up lines. You can't really have your cake and eat it too with two strokes(unless you're talking big bores), so you ultimately have to decide if more power and a more pronounced "powerband" is more important to you VS low fraction and late moto tractability.

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The Shop

jazza167
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607
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2/1/2019
Location
NZ
8/13/2026 12:41am

Just buy a Yamaha already …..

12
ikeG
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6/15/2023
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Home, PA, USA
8/13/2026 1:49pm

Weve all have heard how crappy the tbi 2 strokes sound when free revved.  Then I came across cody darrs chest cam footage of chase dashiels holeshot from lorettas. See my post above.  I think his still is tbi but does anyone else's that has had ecu mapping run like his??

2
Hasletjoe
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7/29/2013
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Haslet, TX, USA
8/13/2026 2:20pm

I am holding out for a twin shocked air cooled ride....

1
Hammer 663s
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3114
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6/2/2016
Location
Forest Grove, OR, USA
8/13/2026 2:26pm

Does it get rid of all the sensors needed for the FI version? That's what seems to be a problem for my friends with the 125s. Bad sensors, bad data, bad connections. Always chasing something new. Our 22 had no sensors and simple wiring, was simple to tune, and was very reliable while being a rocketship with a few mods.

3
FGR01
Posts
6139
Joined
10/1/2006
Location
USA
Fantasy
8/13/2026 5:22pm
Does it get rid of all the sensors needed for the FI version? That's what seems to be a problem for my friends with the 125s...

Does it get rid of all the sensors needed for the FI version? That's what seems to be a problem for my friends with the 125s. Bad sensors, bad data, bad connections. Always chasing something new. Our 22 had no sensors and simple wiring, was simple to tune, and was very reliable while being a rocketship with a few mods.

It gets rid of much of the electronics, but not all.   The entire throttle body is gone so a few sensors go with that.   The electronic PV is still retained.  

I fully agree, last gen carb Austrian bikes are the best.  But at least this kit might be a savior for some guys that are in TBI hell with problems.

1

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