This backward beats in engine will perhaps not to be a problem of CDI, it can be a technical problem which is given by construction of motor. If you want or need a new CDI, so we are using here often reliable and not original type with a low price. His box has other proportion and must be sticked on board. There are e-adress and manual adress for Canyon CDI. ALL in English. I hope, you can find the needed informations there. I used it in my bike about 3 years without troubles. (in web go step by step for products – DC CDI 1 cylinder - assembly manuals in text – Canyon 600 ). I copy a part of it here. (And now, I am going for 2 weeks on Hollydays.) - Good luck by reparations and have a nice time.
http://www.ignitech.cz/english/aindex.htmSPARKER DC-CDI
Capacitive ignition for motorbikes supplied by 12V.
SPARKER DC-CDI ignition is a capacitive device with electronic regulation of ignition advance as function of rpm (speed). CDI ignition supplied by HV alternator coil is used with most of the single-cylinder road motorbikes. However this coil is often damaged and repairs do not lead to desirable effects. That is why we offer SPARKER DC-CDI ignition for bikes equipped with an accumulator. SPARKER DC-CDI ignition is made in many versions for individual bike types. It can be assembled to practically any carburettor single-cylinder motorbike with stable dashboard voltage 12 V. DR, XT, XL, KLR… motorbikes can be mentioned as an example. If the sensor system of customer's bike does not comply with SPARKER DC-CDI ignition versions made at present it can be included in our production programme within a short period of time (few days at maximum).
SPARKER DC-CDI ignition can be equipped with a blocking input for connection of side stand switch, blocking input for connection of ENGINE OFF switch, output for tachometer and fuel pump relay. Revolution limiter can be implemented in the ignition software on request. The ignition unit is sealed in a plastic box with bundles of input and output conductors with pins. Counterpart connectors are supplied.
We provide expert installation of the device in our specialized shop. For those interested in assembly procedure detailed assembly manuals are available here.
Price: circa 113 Euro