Hi Guys
I'm looking for a local mechanic (to Worksop, Notts) to help me 'sort out' my manual start Black Devil M25y engine. I'm able to do routine maintenance and basic tuning, but I think I now need some help (please)
This engine has been quite problematical from new (2.5 years old) ... mainly engine starting problems / VERY hard to pull start ... sometimes requiring 30 + pulls, and VERY hard physically to pull start compared to my mates similar machine .i.e. it seems to be very stiff, almost like the 'automatic decompressor' is stuck (which it isn't).
There have been a few occasions where I've managed to get things to a point where I could pull start it fairly easily on my back (for maybe the next 10 flights), but just when I think I've 'cracked it', we get back to square one - not starting again.
I've changed & thoroughly cleaned the 'automatic decompressor' ... I've also tried the manual decompressor - behavior no different. I've changed the fuel lines, complete new carb', spark plug (including the new Denso), measured coil voltage (OK). Took the cylinder head off (looked OK), reassembled with new head '0' ring ... everything torqued to manufacturers spec'.
I've read and followed everything I can on the excellent AeroCorsair web page by Alex Varv (which has been my main source for getting this far).
So ... if there is anyone out there that can assist me, I would be most grateful ... and can either pay (real money) or barter my services as 'Computer Repair Man - Software Problem Solver etc".
Thanks for reading this rather long winded message guys
Happy Landings (& Take-Offs)
Brian 'Turbo' Tunnard
The Cloud Hoppers Paramotor Club