http://www.maxairengineering.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=ME&Category_Code=42HSR How to remove your Yamaha Road Star OEM Throttle Position Sensor TPS to send to us to mount to our Maxair Racing 42 Carburetor conversion.
How Motorcycle Carburetors work and how to tune and clean them
Here's a link to the kind of carb cleaner I like best (it IS the best)
hey... awesome video..nicely explained !
just one question. Please do tel me wts AIR NEEDLE and LOW JET used for
again. ? i mean how and what do they work?
The air needle is like a transitional restriction to increase vacuum
pressure and tapered to prime the main jet flow gradually to ramp up fuel
flow from the idle/low circuit to the main circuit. Think of the circuits
like gears or stairs. The needle covers transition between 3rd gear to
about 5th gear on a six speed. It overlaps basically. Fuel is getting by
it from the idle/low- on through to where it's completely out of the way of
the main jet and the main jet fuel flow is roaring like the
Without the needle the carb would work, but not as smoothly through middle
throttle (where most people ride and have the most fine input or throttle
roll back and forth.
The low jet is like second gear on a transmission. You can shift from 1st
to 3rd, but again you risk stalling and it won't be as smooth. Also there
isn't really the mechanical inertia to carry the process on like you have
with a rolling vehicle with a flywheel on the engine and the wheels
turning. The pistons still create vacuum every other time they go down,
but air just doesn't have the punch that steel does when in motion.
The circuits in a carburetor have to be there or you would have a limit on
RPM range. An idle jet can't deliver enough fuel to really scream, and the
main jet couldn't go slow and would be VERY hard to start because the
engine would have to be spun up really fast. So you have usually four or
five circuits (I want to say jets, but their physically different) that get
air flow like stairs as the throttle opens. They are typically 1. Starting
circuit (choke on) 2. Idle circuit 3. low jet 4. Jet Needle 5. Main jet.
How Motorcycle Carburetors work and how to tune and clean them Check out
my other channel here http://www.youtube.com/watch?v=1KKvwMaIotA
How to adjust the jets on motorcycle carburetors
This is a brief introduction to the fairly touchy process of re-jetting
your carbs. The techniques discussed here are fairly universal to most
carburated motorcycles, but not all, so your first step in performing carb
tuning should be to consult your repair manual and online forums. Hopefully
this video can demystify a lot of the process for you, so that you have the
courage and interest to do this yourself. Let me know if you have any
How the Throttle Position Sensor works, also known as TPS sensor.
In this video Lauren explains how the Throttle Position Sensor works, also
known as TPS sensor. She also explains how to test this sensor using a
To learn more about the TPS and other sensors related to the Fuel
Injection System visit our web page:
The clothes Lauren wore for this video were purchased at:
2005 Yamaha Roadstar Dyno Run 08-27-2011.avi
New Dyno run after
installing all of the new bolt on upgrades and she is like a totally
Went from 62.44 HP to 76.78 HP and 95.23 torque to 101.13.
Listed below are the upgrades.
Cobra Speedster Slashdown Exhaust
Thunder Mfg. Big Air Kit + Rejet the Carb
Speedstar Ported Intake Manifold
Dyna 3000 Ignition
Dyna Coils and Plug Wires
AIS Removal Kit
XV1600 TRANS RECALL DISASSEMBLY PT.1
1999 YAMAHA XV1600 TRANSMISSION RECALL BEING PERFORMED, STARTING WITH THE
MOTOR OUT, TO SHOW WHAT IT TAKES TO GET ACCESS TO THE TRANSMISSION FOR
REPLACEMENT. IT TAKES A LOOOOOT LONGER TO REMOVE FROM THE FRAME, AND CLEAN,
AND REASSEMBLE. THIS WAS EASIER TO FILM. PART 1, VALVE COVERS. I THOUGHT
CERTAIN OWNERS MIGHT LIKE THIS LITTLE, CRUDE DEMONSTRATION.
Suzuki DR650 Mikuni carburetor re-jetting using Six Sigma Jet Kit
This is a short video of rejetting the Mikuni carburetor on my DR650 with a
Six Sigma jet kit that I got on eBay. They include personalized
instructions that were fairly easy to follow and several jet sizes for
different progressive stages and altitudes. This video shows settings
recommended for Houston w/airbox mod, stock muffler, and mild performance
increase (small hole drilled in slide, but did not clip the spring.
EDIT: You can also call you local dealership and ask them what settings
they would use. They usually sell the jets and you can pick up the spacers
at Lowe's. I do recommend the extended fuel mixture screw from ProCycle.