Man what state are you in??? I need to fly you down to Florida to do all my adjustments on my 75!! All of this shit is foreign language!Yes, I don't know why many of the later carb rebuild kits include that Y-22 needle. They've been like that for years. That needle is only suited for the early '70-'73 carb sets with the raised floor in the main bore. They take a shorter needle like that. Once they dropped the floor in '74, a longer needle was required. And then in '78 when they redesigned the slide with the needle mounting higher up in it, an even longer needle was needed .....
Also I still have the stock air cages in there. I pulled all the deteriorated foam off and fitted the green unifoam. Do you think that’s more restrictive or less restrictive? I’m scared I’m running to lean and I have no idea what I’m looking for.This bike is a very good teacher, lol. I knew some carb stuff but learned much more dealing with the 650. The importance of knowing the year of your carb set and what size jets and needles should be in it can't be stressed enough.
I just pulled the plugs that have been in bike for about 30 miles. Left side is left cylinder and right side is right. Notice the right side looks a lot cleaner than the left. What is all this look like to you?This bike is a very good teacher, lol. I knew some carb stuff but learned much more dealing with the 650. The importance of knowing the year of your carb set and what size jets and needles should be in it can't be stressed enough.
Man you’re awesome!! ThanksYour plugs look pretty good but you're right, 30 miles isn't much time to show color in. But still, if your carb settings were really off, it would show, and yours appear pretty good. The slight difference in coloring can probably be attributed to minor adjustments or sync slightly off.
You appear to have the stock carbs which would be the BS38s. Here's a chart showing the stock jetting used in the different sets over the years. Eventually, if you ever take the float bowls off, you can check and verify your jet sizes .....
Of note for your carb set is the needle setting. Notice the "-4" after your needle number (4N8) in the chart. This indicates the stock setting was having the e-clip in the #4 slot (from the top). Needles usually have 5 clip slots and the middle #3 slot is what most carbs are run at. Yours is different.
The #4 slot yours is speced to run in is a richer setting than the usual #3 slot. So, if someone with general carb knowledge was in there, they may have set your needles in the #3 slot if they didn't have access to your carb set's factory specs. That would have the bike running leaner than it should so it's something you should probably check.
The UNI foam wrap should flow just as well, if not better, than the original stuff, but I don't think it will flow too much to the point of needing to change jetting. Also, in your favor is the fact that the older carb sets like yours came set up richer from the factory than the later E.P.A. mandated sets. You can often get away with some minor modding without needing carb jet changes.
Your plugs look pretty good but you're right, 30 miles isn't much time to show color in. But still, if your carb settings were really off, it would show, and yours appear pretty good. The slight difference in coloring can probably be attributed to minor adjustments or sync slightly off.
You appear to have the stock carbs which would be the BS38s. Here's a chart showing the stock jetting used in the different sets over the years. Eventually, if you ever take the float bowls off, you can check and verify your jet sizes .....
Of note for your carb set is the needle setting. Notice the "-4" after your needle number (4N8) in the chart. This indicates the stock setting was having the e-clip in the #4 slot (from the top). Needles usually have 5 clip slots and the middle #3 slot is what most carbs are run at. Yours is different.
The #4 slot yours is speced to run in is a richer setting than the usual #3 slot. So, if someone with general carb knowledge was in there, they may have set your needles in the #3 slot if they didn't have access to your carb set's factory specs. That would have the bike running leaner than it should so it's something you should probably check.
The UNI foam wrap should flow just as well, if not better, than the original stuff, but I don't think it will flow too much to the point of needing to change jetting. Also, in your favor is the fact that the older carb sets like yours came set up richer from the factory than the later E.P.A. mandated sets. You can often get away with some minor modding without needing carb jet changes.
So she still stallling. I have her 3/4 out from all the way in I also tried one half and one full turn from all the way in and same thing. She runs for like 45 seconds at 13 to 1500 RPMs and then just cuts off. So fucking frustrating. The carbs are spotless. I ripped them apart last night and use two cans of CRC cleaner.Your plugs look pretty good but you're right, 30 miles isn't much time to show color in. But still, if your carb settings were really off, it would show, and yours appear pretty good. The slight difference in coloring can probably be attributed to minor adjustments or sync slightly off.
You appear to have the stock carbs which would be the BS38s. Here's a chart showing the stock jetting used in the different sets over the years. Eventually, if you ever take the float bowls off, you can check and verify your jet sizes .....
Of note for your carb set is the needle setting. Notice the "-4" after your needle number (4N8) in the chart. This indicates the stock setting was having the e-clip in the #4 slot (from the top). Needles usually have 5 clip slots and the middle #3 slot is what most carbs are run at. Yours is different.
The #4 slot yours is speced to run in is a richer setting than the usual #3 slot. So, if someone with general carb knowledge was in there, they may have set your needles in the #3 slot if they didn't have access to your carb set's factory specs. That would have the bike running leaner than it should so it's something you should probably check.
The UNI foam wrap should flow just as well, if not better, than the original stuff, but I don't think it will flow too much to the point of needing to change jetting. Also, in your favor is the fact that the older carb sets like yours came set up richer from the factory than the later E.P.A. mandated sets. You can often get away with some minor modding without needing carb jet changes.