740 1986 Slowly Dies
 

Regards to all Fanatics of Volvo
My 740 1986 B230E slowly dies, it's first very slowly to accelerate, then stops in 3500 rpm days later no more than 1500rpm.
My mechanic was trying to guess the fail, the clean some parts of the K Jetronic system and was alive again. Accelerate very fast everything was ok.
But 2 weeks ago same problem, starts very well but after some kilometers slowly down, first no more than 4000 then 3200 tehn 2500.
I need to shutdown and try to start for a half second (this charges some fuel in the system) after 5 or 8 times the engine runs perfectly for a couple kilometers, then fail again.
Well my mechanic is no more in town so i need to put my hands on work, clean everything change from my other volvo same engine the entire K Jetronic system but this time can start the engine.
I'm very dissapointed so any help is welcome and apprerciated.
Thanks!!!