I bought the 4 channel as a general shop tool, everything I've used it on so far would agree that it's great! I did have to get a little creative adapting it for my CM400A, turns out the waste gate vacuum tubes from a 7.3 Powerstroke works great for this. I knew it wasn't going to work out of the box on this bike, but that's a Honda thing, nothing wrong with this product.

Great product. I initially received a faulty unit (stuck on E03), however it was swapped out for another unit and all good. Thanks

I bought this to tune up my CM400A, had to get a little crafty with the sniff stick but that's how all good projects go 😅. All and all it works wonderfully and now my bike runs like a top! If you do use the stick at the exhaust tip, I recommend dropping your AFR a bit to compensate for air pulsing in the exhaust.

Good and serves it's pupose, however the addition of a spring (to the securing bolt) to provide some tenstion would be good to help secure it in place (whilst driving the vehicle). I note another review, it fell off and I can see how this could happen.

Very quick service and delivery.
Highly recommend.

Dunno haven’t had the chance to use it yet waiting for other parts to rock up

It was my first time balancing throttle bodies on a motorcycle. The product was very easy to use and I felt it behaved in a predictable and accurate way. It’s sold at a good price and well worth it over the older analogue options on the market. For all the effort in accessing throttle bodies, this makes the job a lot easier and gives you the confidence that you’ve done the job correctly. I wish I had more bikes to use it on!

The AFR meter is easy to use and just the thing i needed.

great product , works well. would be good to have an incar (permanent ) mount unit

I have the air fuel ratio gauge fitted to my KTM 390 Duke. I also have the Fuel X Pro fitted. The Fuel X Pro has 10 maps for tuning the bike once modifications have been made. The Lambdaking Air Fuel Ratio gauge accurately displays the AFR while I'm riding. I placed the 02 sensor 14 inches from the exhaust port. Map 3 on the Fuel X Pro is the factory setting for the 390 Duke. I have modified the air inlet and exhaust, I find map 6 gives me the best AFR for those modifications. If I didn't have the Lambdaking AFR gauge I would only be guessing. I am so please with, thank you.

I had concerns my engine was running rich. Put the o2 sensor in the exhaust and went for a drive. Got immediate results and peace of mind that the tuning is spot on. Highly recommend.

SynchroKing - Carburetor & Throttle Body Balancer

Idk wat i think of it mate as got wrong one first time sent it back upgraded and even express shipping and still hsvent seen noting an that was well over week ago

i lets u know when i use it, I'm going to use it on my bike, one for each cylinder,
i want to tune the bike on the road.

Very pleased with this unit. It allowed me to fine tune my Datsun 260Z with twin Hitachi SU carbs
Great value

It just works, no calibration needed and the sensitivity is just right. I have had a few different balancers and this ones the best I have used. I would love one with its own Lithium battery to save the battery leads and a magnetic case to grip the tank would be another improvement.

Very happy with this. It worked extremely well. Took all the guesswork out of tuning twin Hitachi SU carbs Good value for money

I loved this product. The only improvement that could be made is the sniff stick had a wider securing point for wider exhaust tips.

Very happy, the unit is easy to use and does what it says on the box

I have used the synchroking many times in the past at bike club service days so I knew how good it is. I had to have my own. I have several bikes both twin & four cylinders, carburetted & fuel injected. The synchroking covers them all. Excellent product

Excellent piece of kit, most impressed with the item its easy to use and works much better than my very expensive calibrated diaphragm vacuum gauges

The balancer unit works exactly as advertised but… the little vacuum port attachments are the worst! Those brass things are machined too thin. One of them sheared off in the engine with only hand-tightening. Major pain

I bought 4 input guage. Setup with left bank and first cylinder of right bank the swapped to other side. Very accurate and damping function was great to get it dialed in. Previously used flow meter but being able to detect vacuum after filter was better.
I would love some better designed vacuum take off rubber covers, especially reinstalling, fiddly and tricky with hot engine.

The kit provides a range of special tools that are not b easily substituted by other means. They provide a way of working, so that with careful use, the jets and other small components are tuned, adjusted, removed, replaced and not damaged. The cleaning kit allows careful jet cleaning. Thankyou for the prompt delivery of these items.

Unfortunately it seems the sniff stick bolt or thread failed and it fell of and ripped plug whilst on test drive , found it missing when got home