hi,
if it turns out that the control box is toast (ive had one go after a reg/rect failure) there is a guy in Greece who repairs/modifies them with a switch box to play with the valve timing, i highly recommend him, did a great job on mine.
https://www.ebay.co.uk/itm/277019422206?_skw=tzr+power+valve+controller&itmmeta=01JW886RNA7RZYH9H1R5QJ0Q72&hash=item407fa4edfe:g:kpAAAOSwy4hUR7Y5&itmprp=enc%3AAQAKAAABAFkggFvd1GGDu0w3yXCmi1eTynOTiN6ENN%2FDnZ4OWn%2FNLKHjJkPx3P9x7WNN2wEoXej1sR2THJwulVimrA7ZRUp0uAXtixK4jx%2BdjtPQjybO%2FZFp5tmxOdPqaehYqVbsqROe3%2Bnl%2FPjagS8Vof%2Fi3vkwqTab2hfZ5YCbWYL54bNZ5v4wmFzZB2FJBsP%2FWSbY98ft5yq6V98xhpLtCletkJcwwzHTHO9DMsBSCh6RhSVjBtL6Rt7WicBFtzfrXPq4gAJOVkzkCcI%2F8YTllPvIUsm10o0Rrvm5wGpn8XSUVC8N9fTI8Ris64BK%2BABm8Na0PREEe24936QlXG5t%2B3vFzJU%3D%7Ctkp%3ABk9SR-iKm4jiZQ
cheers
les.
if it turns out that the control box is toast (ive had one go after a reg/rect failure) there is a guy in Greece who repairs/modifies them with a switch box to play with the valve timing, i highly recommend him, did a great job on mine.
https://www.ebay.co.uk/itm/277019422206?_skw=tzr+power+valve+controller&itmmeta=01JW886RNA7RZYH9H1R5QJ0Q72&hash=item407fa4edfe:g:kpAAAOSwy4hUR7Y5&itmprp=enc%3AAQAKAAABAFkggFvd1GGDu0w3yXCmi1eTynOTiN6ENN%2FDnZ4OWn%2FNLKHjJkPx3P9x7WNN2wEoXej1sR2THJwulVimrA7ZRUp0uAXtixK4jx%2BdjtPQjybO%2FZFp5tmxOdPqaehYqVbsqROe3%2Bnl%2FPjagS8Vof%2Fi3vkwqTab2hfZ5YCbWYL54bNZ5v4wmFzZB2FJBsP%2FWSbY98ft5yq6V98xhpLtCletkJcwwzHTHO9DMsBSCh6RhSVjBtL6Rt7WicBFtzfrXPq4gAJOVkzkCcI%2F8YTllPvIUsm10o0Rrvm5wGpn8XSUVC8N9fTI8Ris64BK%2BABm8Na0PREEe24936QlXG5t%2B3vFzJU%3D%7Ctkp%3ABk9SR-iKm4jiZQ
cheers
les.