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Dave, my buddy Claudio of LongWalk.it was here for the last few weeks, and he constantly tweaks this as fuel quality/pre-detonation demand. He uses the all metal screw driver from the OEM tool kit, so not saying that what you say is incorrect, but he's had no issues to date.kiwi dave said:But I have been warned to use a screwdriver with an insulated shaft. Apparently, you can do some damage if you short the adjuster on to the side of the box. Can't verify this, but wish to pass the warning on.
ian-jowsey said:Thanks Dave
This is excellent reference material, much appreciated. My California Stone is all over the workshop floor at the moment. I'll be tweaking the trim screw using a CO gas analyzer when its back in one piece. The system is the same as on many of the Fiat and Lancia vehicles I've worked on in the past. Its pretty simple once you get familiar with the components. My bike is a later version with the fuel filter inside the tank. Its easy to miss this when servicing the bike because you can't see it so I'd suggest anyone working on these replaces the filter first up. Its a tiny filter and you'll hear the relief valve in the pump actuating when the ignition is turned on if its restricted. Mine hadn't ever been changed in 10 years of use.
Cheers
Ian Jowsey
Hobsonville NZ
ian-jowsey said:Cheers John
That explains why I couldn't find the adjuster when looking for it last night! The atmospheric pressure sensor looks different too but the rest of the components apart from the fuel pump and filter arrangement seem to be the same or similar.
Regards Ian :idea:
Good to hear, and replace the pump. It's likely full of crud, and it's non-rebuildable. I have some alternates listed in the Archives (tab above).fuel pump still noisy , have to figure out why.
thanks
Interesting reading ,got me wondering about fuel filters and changing them . What's the general opinion on how long they go before needing changing . Manuals invariably quote service intervals for air filters but here in Scotland I have yet to come across an air filter that's choked ( too damp for dust )and I doubt that my 1100i Cali has had a fuel filter change in years ( owned by me for 1 year )