USA January 2008
“We tested the Carbtune Pro on several carbureted and
fuel-injected motorcycles and found it worked flawlessly. ...The
actual sync procedure is something 99 percent of motorcycle owners
can handle easily... We ordered direct (from Morgan Carbtune UK)and
received the Carbtune Pro within a week, at a bargain shipping rate
of about $6." See full article here.
Bike Magazine December 2007
“Forget drugs, Buddhism, therapy and exercise. The ultimate route
to spiritual well-being is carburettor balancing. You start with a
motorcycle that, on tick-over, sounds like a carpet-lined toolbox
falling down never-ending stairs. It runs, but with two broken
ankles. And you end up with a thrum so contented it brings tears of
pride to your eyes.
Of course, I hadn’t intended to balance the carbs. I thought I’d
ploughed through all the CBR’s niggling faults….
Mind you even when adjusted to a normal idle speed the engine sounds
horribly lumpy. I know the valve clearances are spot on so the carbs
are probably out of synchronisation - the theory being that each
carb has to deliver exactly the same amount of fuel/air mixture as
its neighbour otherwise the engine can’t run evenly or efficiently.
Getting this sorted at a dealer would cost about £50, and a carb-balancing
tool is..(around the same). I buy one…, it’s called a Morgan
With the Carbtune .. attached to the inlets you fire up the engine.
… Sure enough the inlet pressures are wildly different. ..After
pissing about with the carb adjusters… the little steel cylinders
The change in engine note is astonishing. It now sounds slick,
liquid and relaxed - I can hardly believe a humble DIYer like me has
achieved it. And the throttle response is impossibly crisp. Talk
about satisfying. …
So would I recommend you have a go?
Definitely. I honestly can’t wait for the carbs to go out of balance
Motorcycle Consumer News December
"The Carbtune is the perfect throttle body or carburetor synchronization
accessory for the do-it-yourselfer"
Classic Bikes magazine September
"20 minutes with a Morgan Carbtune works wonders, restoring
an even tickover and giving the bike a creamy off the throttle engine
Fast Bikes magazine January 2003
"Morgan have been making these balancing gauges for years now
and quite frankly they are the best. Well balanced carbs give more
performance and better fuel economy, for the sake of about an hours
Carbtune II awarded
"Recommended" status by RiDE magazine!
In the March 1999 RiDE test on carb balancers from a wide
range of manufacturers the Carbtune II scored the highest
and was the only tool to be "Recommended". Read
Motorcyclist magazine USA. June 2000
Sync your own carbs lately? ... C'mon it's not that hard - but first
you'll be wanting a take-home-style vacuum gauge not unlike this
Carbtune II - a UK made, column-type gauge that replaces the usual
mercury indicators with environmentally safe (and much more rugged)
stainless steel bars. Tested against a set of "professional"
mercury sticks, the CII produced identical readings,.... Kudos to
the CII for including comprehensive instructions, two diameters
(5mm and 6mm) of adapters, hoses that are soft, compliant and easy
to work with....
BMW Owner News USA Nov 2000
“Connecting the Carbtune II to the R1100RS I noted the position
of the rods.
I then connected my trusty mercury manometer in place of the Carbtune
II. Result: exact same reading. However it was obvious that the
Carbtune II fluctuated considerably less than the mercury unit.
This simply made it easier to synchronize the throttle body openings..
....and in my opinion the company’s diligence and persistence
has paid off. My mercury unit and the (dial) vacuum gauges are going
to see as much use in the future as a Vespa scooter at Sturgis.”
Classic & Motorycycle Mechanics Sept 2000
“I have used John Morgans Carbtune II with great success.
Cheaper than dial gauges and a great deal easier to use, they are
also more accurate and you can see much more easily what’s
Snippets of some of the many positive press reviews over
more than 20 years:
Biker magazine 1981
".......it works extremely well."
".... they worked a treat."
"During our test which included the ball type gauges (£67.33),
two sets of dial type gauges, Suzukis electronic gauges (£331.48)....
the Carbtune came out tops"
Performance Bikes 1985
"They show every sign of being well developed and represent
excellent value for money. ...Fluctuation is not a problem, .......the
results are first class."
Australian Motorcycle News 1987
"...the Carbtune versions are excellent value..... The whole
set up looks near impossible to break."
Despatch Rider 1988
"Looking back at all the dial type gauges he's used he reckons
the Carbtune from Morgan beats them hands down on every point as
well as representing excellent value for money."
Motor Cycle News 1990
"Still the cheapest and most accurate gauges are Carbtune gauges....."
Which Motorcycle 1993
".........they are more accurate and robust..... Recommended."
The new Carbtune II has just carried on where the old one
Motor Cycle News February1994
" Widely recognised as being easy to use and accurate is the
Motorcycle Sport July 1994
"We can happily recommend the Carbtune II as an accurate and
robust tool for the job"
Motor Cycle News July 1994
"...for bikers on the move they're a good choice"
Performance Bikes August
" ..instructions are clear, well written and helpful....this
type seems just as useful but with added portability."
Bike December 1994
"It's such a simple piece of kit and will stand huge amounts
of abuse. ............clear, extensive instructions."
Secondhand Bike February 1995
"It's easy to use and comes with loadsa fittings to suit different
bikes, ........Highly recommended."
Back Street Heroes May
"The instructions were easy to follow and idiot proof.
....The Carbtune II didn't look as though it would be as accurate
as its mercury (Carbtune) equivalent but once set up on a
bike........proved to be quicker and easier to read than the
mercury gauges and tested perfectly against the mercury on
a GS550, Z1100, and CX500."
Motor Cycle News 25/9/96
"Very sensitive, easy to read, cheap and accurate"
RiDe Magazine August
"makes a tricky job easy."
Classic Motorcycle Mechanics November 1998
"...Carbtune II is surely one of the easiest to use carb tuning
aids on the market."