Harmonisor throttle body/carb balancing guages now available.
- Thread starter Steptoe
- Start date
+1
I had a twinmax for a week. And that was 5 days too long.
When we had a spanner day at Whattons we were using a home made to manometer to calibrate the Twinmax's. Comedy kit
Cook1e
Registered user
Want One!
Hi Grok,
Seems to be a splendid bit of kit from the feedback here and in "the other place". I currently use a Carbtune, but I had a Twinmax ages ago when I rode an R80.
I actually found them both fine, though the Carbtune's not as easy or quick on a twin as the Twinmax was. Odd that I was just thinking the bike could do with balancing when I stumbled onto this thread.
Ordered just now, I'll let you know how I get on.
Cheers,
Ian
Hi Grok,
Seems to be a splendid bit of kit from the feedback here and in "the other place". I currently use a Carbtune, but I had a Twinmax ages ago when I rode an R80.
I actually found them both fine, though the Carbtune's not as easy or quick on a twin as the Twinmax was. Odd that I was just thinking the bike could do with balancing when I stumbled onto this thread.
Ordered just now, I'll let you know how I get on.
Cheers,
Ian
Grok
Registered user
Thanks!
I'm happy to confirm the reviews are all positive!
One gentleman at the "other place" suggested the Harmonizer was "the dog's bollocks"!
It scared me until I looked it up. Apparently it's a term of endearment
Grok,
When the 4 cylinder version is ready, will that version operate on a twin as well and as easily as the Harmonizer does?
When the 4 cylinder version is ready, will that version operate on a twin as well and as easily as the Harmonizer does?
Grok
Registered user
Yes sir. It is a long way from being finished, but my current plan is to include a differential manometer mode that will use ports 1 and 2, and exactly mimic the Harmonizer.
Grok
Registered user
I've used one for years as well. I was able to achieve reasonably good results with it.
But:
It eats batteries very quickly unless you cut the backlight wire.
If you cut the backlight wire it's hard to tell if you've turned it off, sometimes resulting in a dead battery.
It doesn't display actual measurement units, and the sensitivity (therefore accuracy) varies with battery voltage.
The original version (not sure about the current version) used suspicious assembly techniques including hot-glue to hold the meter movement in place.
At max sensitivity the zero knob is very fiddly.
I could go on, but there isn't really much point.
The Twinmax was an innovative idea. I give them a lot of credit.
But it now has robust competition
Hi Grok, order placed, Boxer, V & Parallel twin to practice on.
Grok
Registered user
Dave78
Registered user
I'll soon be attempting to balance my tb's on a R1100. Looking around carbtune seems to come in around 50 quid, the harmonisor comes in around 75 quid..
So to all those who have used this.. is it worth the extra 25 quid? Reading this thread I think I already know the answer, but thought I'd ask anyway..
Think my first order of something from the US is about to happen..
So to all those who have used this.. is it worth the extra 25 quid? Reading this thread I think I already know the answer, but thought I'd ask anyway..
Think my first order of something from the US is about to happen..
I've used the Carbtune for a few years and get good results with it but there is an element of learning to read the gauges attached to them, they bounce around a fair bit and will stop moving completely if you don't keep them vertical. The Harmonizer is smooth and consistent and obviously works at any angle. well worth the extra as far as I'm concerned.
Grok
Registered user
Morgan Carbtune uses steel rods suspended in the vacuum air column. They have been through a few revisions over the years, mainly revising the way the columns are calibrated so that each column has equal sensitivity. The most recent incarnation uses adjustable springs that pre-load the steel rods.
The Carbtune must be close to vertical on two axes (plural of axis I looked it up
) during use.It also presents a small vacuum leak to the motor, as a small amount of airflow past the bushing is present. I doubt the small vacuum leak will have much of an effect, but it does exist. Here's a photo I found of the 4 column version:
Hope this helps!
Cook1e
Registered user
Good service!
Mine arrived this morning. Was a little worried by the lack of bubble wrap/polystyrene/whatever packaging, but all is well it's a robust little thing
- will get to try out at the weekend, all being well, and report back.
Cheers,
Ian
Mine arrived this morning. Was a little worried by the lack of bubble wrap/polystyrene/whatever packaging, but all is well it's a robust little thing
- will get to try out at the weekend, all being well, and report back.Cheers,
Ian
Funny, I was just thinking this evening on the ride home that it felt like the bodies needed balancing. Just the job.
Ordered.
It must be good if Steptoe is recommending it, he's usually pretty scathing of hifalutin' unnessesary doodads.
Ordered.
It must be good if Steptoe is recommending it, he's usually pretty scathing of hifalutin' unnessesary doodads.
