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Alright. I've been fairly easy on the 1100 these past few weeks, due to a concern over my failed drive chain. Now that I've got that taken care of, I've been attempting to ride a little more spirited. Attempted, because when the engine runs past 5 or 6 grand, the engine sputters and chokes. I can usually get it to run smoothly, with very slow, very precise operation of the throttle. Made a run to Tortilla Flat today, and noticed it was more pronounced while descending. I was riding with a bunch of cruisers, so I never had much call to run it past 4 grand or so. So, I figure I'm most definitely in need of a carb cleaning, really, it should have been done ages ago, but I've been taking care of safety issues first. Granted, the sudden decrease in power associated with the stumbling could very well be considered a safety issue itself, but still less severe than say, a chain coming apart, or brakes failing. In any case, I figure I might as well clean up the air signal as well. I don't fancy taking the time to figure out exactly what's causing my stumbling, so I'm going with the cash shotgun approach, and will just replace all the items that might be causing it. So, time to gather parts and make a plan for a project.
Since I'm going to go to the trouble of cleaning these carbs, I might as well make sure they don't get all clogged up again, right? POR-15 is the route I want to go, right? I've got the ability to take the bike of the road for an extended amount of time, if necessary. Yay bicycles and short commutes. Stock fuel line is supposed to be replaced every two years, according to my service manual, so I might as well do that as well. I'm pretty sure my OE petcock is working just fine. I've never had a problem switching to reserve, and prime works as it's supposed to. That should just about do it for fuel delivery.
I've got a K&N OEM replacement filter coming soon. Airbox is very solid, no holes or deterioration except for the sun bleaching on the exterior. Most of the rubber in the air signal is fairly stiff, I could probably stand to replace it. It might be worth it, if only to make installing the carbs easier.
From this fiche, I think I'll need the following:
#02 x 4
#11 x 1
What's 3? I've had the carbs off when I rebuilt my cam chain tensioner, but I don't remember these. Bike Bandit calls it a Ring Outlet Tube. Maybe I'll pick some up just in case.
From this fiche, I think I'll need the following:
#22 x 2
#23 x 2
The only other parts I can think of in the air/fuel delivery path would be the exhaust gaskets, and I'll go ahead and do those as well. I've been hankering to get the pipes off for a cleanup and repaint anyways, and I'll need to pull them in order to pop in the 750 oil pump gears I plan on obtaining in the near future.
So, here's my first draft parts list:
Carb Dip
O-ring kit (Anyone mind posting the link?)
Jet kit? Not sure if the carbs were jetted for this V&H pipe or not, better safe than sorry?
#02 x 4 from fiche #1
#11 x 1 from fiche #1
#03 x 4 from fiche #1 ?
#22 x 2 from fiche #2
#23 x 2 from fiche #2
OEM Fuel Line
OEM Exhaust gaskets
POR-15 Tank Sealer Kit
Conical OEM Style K&N Filter
Stainless Allen Bolts for every possible fastener I can find (any links?)
Cylinder Head Cover Gasket (For valve adjustment)
It's entirely possible I'll just have the carb work done by a third party. I've seen some spectacular examples of painted fuel meters on these forums, wouldn't mind owning a set myself, even if they are just dressed up stockers. I think that should give me a brand new fuel signal pathway, and a brand new air signal pathways, and hopefully clearing up whatever problem is causing my stumble. Can anyone think of anything I might have missed? My goal is to replace or repair everything that could cause an issue with fuel metering. Ignition system has been tested and ruled out as a possible problem.
Since I'm going to go to the trouble of cleaning these carbs, I might as well make sure they don't get all clogged up again, right? POR-15 is the route I want to go, right? I've got the ability to take the bike of the road for an extended amount of time, if necessary. Yay bicycles and short commutes. Stock fuel line is supposed to be replaced every two years, according to my service manual, so I might as well do that as well. I'm pretty sure my OE petcock is working just fine. I've never had a problem switching to reserve, and prime works as it's supposed to. That should just about do it for fuel delivery.
I've got a K&N OEM replacement filter coming soon. Airbox is very solid, no holes or deterioration except for the sun bleaching on the exterior. Most of the rubber in the air signal is fairly stiff, I could probably stand to replace it. It might be worth it, if only to make installing the carbs easier.
From this fiche, I think I'll need the following:
#02 x 4
#11 x 1
What's 3? I've had the carbs off when I rebuilt my cam chain tensioner, but I don't remember these. Bike Bandit calls it a Ring Outlet Tube. Maybe I'll pick some up just in case.
From this fiche, I think I'll need the following:
#22 x 2
#23 x 2
The only other parts I can think of in the air/fuel delivery path would be the exhaust gaskets, and I'll go ahead and do those as well. I've been hankering to get the pipes off for a cleanup and repaint anyways, and I'll need to pull them in order to pop in the 750 oil pump gears I plan on obtaining in the near future.
So, here's my first draft parts list:
Carb Dip
O-ring kit (Anyone mind posting the link?)
Jet kit? Not sure if the carbs were jetted for this V&H pipe or not, better safe than sorry?
#02 x 4 from fiche #1
#11 x 1 from fiche #1
#03 x 4 from fiche #1 ?
#22 x 2 from fiche #2
#23 x 2 from fiche #2
OEM Fuel Line
OEM Exhaust gaskets
POR-15 Tank Sealer Kit
Conical OEM Style K&N Filter
Stainless Allen Bolts for every possible fastener I can find (any links?)
Cylinder Head Cover Gasket (For valve adjustment)
It's entirely possible I'll just have the carb work done by a third party. I've seen some spectacular examples of painted fuel meters on these forums, wouldn't mind owning a set myself, even if they are just dressed up stockers. I think that should give me a brand new fuel signal pathway, and a brand new air signal pathways, and hopefully clearing up whatever problem is causing my stumble. Can anyone think of anything I might have missed? My goal is to replace or repair everything that could cause an issue with fuel metering. Ignition system has been tested and ruled out as a possible problem.
The bike did sit for quite some time before being ridden regularly though, so it has all the normal gummy carb problems. Choke's pretty worthless, can't ride with it on, only good for raising the idle when it's cold in order to warm up the bike. Won't idle when cold, rather it will, but it'll slowly decay until it stops running. Once it's warm, it was running pretty much perfect. Completed the chain conversion, carbs got jealous of all the attention the final drive was receiving, decided to (probably) clog the pilot jets. 
Probably just a function of having clean gas run through them for a little while. Cleaned up enough gunk to dislodge a piece of gunk large enough to cause metering problems. That's my theory, anyways.
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