What? no 850 specific section in the Forums?
Recently bought a 1970 850 Sport. Motor has apparently been reconditioned and not really driven since. Got her home and she was running a bit rough.
Fuel pump had a small leak, so I opened it up and noticed the pump filter was clogged with rust. So, took the carbie (30 DIC 23/23) apart and found it full of rust. Did I mention there wasn't an inline fuel filter installed? Sigh.
Tank obviously has gone rusty while sitting around.
Ran well after carb clean, but despite installing inline filter, there was obviously some rust still in the system and the jets clogged. Cleaned a couple of times and ran, but decided I'd flush all the lines and reclean the carbie.
But it all back together and now it doesn't want to start. Spark and timing have been checked. Not sure what I did wrong. It just cranks forever without firing. Couple of times it fired and ran for a second or two, but dies almost immediately. Can't get revs up. Tried a bit of ether (a can of "Start Ya' Bastard"!), but apart from a small fire or two, nothing.
Knowing enough to get myself in trouble but not enough to necessarily get out of trouble I'm a little stumped. I just studied a diagram of the carb and noticed that there is one part of the carb that I didn't specifically clean - the emulsion jets. I unscrewed the bung above them, and probably squirted cleaner down the holes, but didn't remove then and clean them. Didn't know I could.
So, is it possible that the emulsion jets are my problem? Have I possibly flushed all the rust into the emulsion jets and clogged them while cleaning?
How do I get them out? Do I need to use pliers or something?
Sorry for all the questions! Just hoping for a little advice before I pull the carb off again.
No, I didn't change the gaskets in the carb or on the manifold. Will do in future, but they seemed to be in good shape...
Finally, I've seen reference on mrFiat to a fuel pressure regulator for the 850 - I don't have one. Is this necessary when running the standard mechanical fuel pump?
Sorry again for a long post full of questions!
Recently bought a 1970 850 Sport. Motor has apparently been reconditioned and not really driven since. Got her home and she was running a bit rough.
Fuel pump had a small leak, so I opened it up and noticed the pump filter was clogged with rust. So, took the carbie (30 DIC 23/23) apart and found it full of rust. Did I mention there wasn't an inline fuel filter installed? Sigh.
Tank obviously has gone rusty while sitting around.
Ran well after carb clean, but despite installing inline filter, there was obviously some rust still in the system and the jets clogged. Cleaned a couple of times and ran, but decided I'd flush all the lines and reclean the carbie.
But it all back together and now it doesn't want to start. Spark and timing have been checked. Not sure what I did wrong. It just cranks forever without firing. Couple of times it fired and ran for a second or two, but dies almost immediately. Can't get revs up. Tried a bit of ether (a can of "Start Ya' Bastard"!), but apart from a small fire or two, nothing.
Knowing enough to get myself in trouble but not enough to necessarily get out of trouble I'm a little stumped. I just studied a diagram of the carb and noticed that there is one part of the carb that I didn't specifically clean - the emulsion jets. I unscrewed the bung above them, and probably squirted cleaner down the holes, but didn't remove then and clean them. Didn't know I could.
So, is it possible that the emulsion jets are my problem? Have I possibly flushed all the rust into the emulsion jets and clogged them while cleaning?
How do I get them out? Do I need to use pliers or something?
Sorry for all the questions! Just hoping for a little advice before I pull the carb off again.
No, I didn't change the gaskets in the carb or on the manifold. Will do in future, but they seemed to be in good shape...
Finally, I've seen reference on mrFiat to a fuel pressure regulator for the 850 - I don't have one. Is this necessary when running the standard mechanical fuel pump?
Sorry again for a long post full of questions!