There are a whole range of instruments and kits for carb sync varying in price from as little as about $30 or so IIRR to $250.
http://www.lockwood.aero/p-3300-syncrhomate-with-rotax-accessory-kit.aspx
Is the $250 kit.
This one
http://www.cps-parts.com/catalog/eppages/carbMate.php
Is about $100..... But it seems to imply you NEED a specialized expensive adapter kit such as
http://www.lockwood.aero/p-3302-rotax-accessory-kit-includes-adaptor-nylon-case-and-holster.aspx
For $90 to use it on Rotax .
The electronic sync instruments Carbmate and Syncromate seem to be very well reviewed by buyers for easy if use , accuracy etc.
I guess I'm willing to spring for $100 or more for ease of use and accuracy... But start to get uneasy as approaching $150 and $250...unless it,s really worth the money to time, reliability or ease of use .
So have a couple of question is anyone can answer:
How much harder are the somewhat cheaper vacuum gauge type tool to use?
(I'm not the village idiot or all thumbs, but have never synced carbs before.)
What's the difference between the Carbmate and syncmate instruments.... both of which cost about the same once you add in the adaptor kit, and both of which are sold at the major Rotax vendors?
Do I really need that adaptor kit ($90 seems steep for a couple of pieces of hose and two thread adapters). Or is that just for the folks with the two cycle Rotax?
Any other suggestions for a solid not too difficult to use sync tool down below $150 for all parts needed to hook up to a 912?
All replies appreciated.
Al