Hi,
A quick update in response to all the suggestions I have received so
far. I plan on doing a compression test this afternoon. It has new
plugs, less than week old but will check their condition when I do the
compression check. It doesn't burn any oil. I doubt the cat is clogged
as I put on a whole new exhaust system in Aug. including a cat. I will
also do my best to check relevant sensors - throttle position switch,
temp 1, temp 2, and the amf but it may be a bit of an adventure since I
haven't done this before. Also are there any tricks to checking the
compression on an 85 with a 2.1L Digijet?

Thanks,
Sam

Sam Stone wrote:
> Hi all,
>
> I am having an issue with my 85 Westy with a 2.1 wbx and digijet fi. The
> idle is fine and power is good below about 3000 to 3200 rpms. Once I hit
> 3000 or 3200 rpms I lose power. This is most pronounced in third and
> fourth gears and goiing up hills. The timing seems ok; it is set at +/-
> 3 degrees btdc. I am pretty sure the ecu is good. I guess I can start by
> fine tuning the timing. It has new plugs, air filter, recent oil change
> and new filter. The fuel pump has been getting louder recently (last 3
> months or so); I just ordered a new one and fuel filter (metal cannister
> type) for Van-Cafe and will install it when it arrives. Could this be a
> problem with the throttle body switch? I put in a new throttle body
> switch about six months ago. Any suggestions would be appreciated.
>
> Thanks,
> Sam
>