Desperate Carb Help Needed!

[renobruce]

Ahh yes Bruce! I do know that the fuel like makes a nice low swooping arch down by the engine case, and come back up under the carbs, this could really be the problem? I'm wondering why it didn't matter before I swapped out this exhaust. It ran well, and I put several hundred miles on it with the line like that..hmm..but maybe the screen is clogged a bit on the new petcock? The tank is new to me as well, it was very clean inside, but may of had some particles left from when the seller of the tank cleaned it out...I guess I'm going to have to start from the beginning, and rule out EVERYTHING..I didn't think about the petcock since its brand new. Ya know, when I had her running momentarily, I took her up the road, and she would get to the point where she just started to die, like running out of gas, until I pulled the choke...after the last time I pulled the carbs and went to drain the bowls, they were empty..hmm. Thanks for giving me some more ideas. I bet it's simpler than I think!

Jeff (teet)

I would say you may have already found your problem. If the bowls are empty she ain't gunna start.

[renobruce]

on another note bruce are you selling those oil pressure gauges on e bay if so i would like to talk to you about getting one
thanks

PM sent....

[teet]

I would say you may have already found your problem. If the bowls are empty she ain't gunna start.

Problem solved!!

It was a little of this and a little of that. First, the fuel line was wayyy too long, and was basically resting on the engine near the sprocket cover..then it had to go way up into the carbs from that far down. Second, I pulled the bowls again, and they were full of grimy, sandy, junk...I cleaned the bowls out real good, replaced the 115's with the 110's that were in it before. I then put on a new fuel line 1/3 the length of the old one, and swiveled the nipple on the carb up, so its a straight shot from the petcock to the carbs now. I pulled the petcock to verify the screen was clean, and it was spotless.

Sooo..I buttoned her all back up, turned the petcock to prime, turned the fuel and air screws out 1 turn, and she fired instantly, switched the petcock to "on", popped the choke off, and adjusted the idle down to around 1k....she purrs now! Took her for a 10 mile ride, and no issues..throttle response is quick, and she gets up and goes. I still need to adjust the air, and fuel screws a tad, as she puffs a tiny bit of black smoke when revving at high rpm's, so I'm guessing she's still a tad rich, but the plugs look really good. Unreal how something so simple can make me so nuts!

Thanks everyone for the insight! Now I have a bunch of extra jets I didn't even need,,ugh

Jeff (teet)

[Spyderman]

Problem solved!!

It was a little of this and a little of that. First, the fuel line was wayyy too long, and was basically resting on the engine near the sprocket cover..then it had to go way up into the carbs from that far down. Second, I pulled the bowls again, and they were full of grimy, sandy, junk...I cleaned the bowls out real good, replaced the 115's with the 110's that were in it before. I then put on a new fuel line 1/3 the length of the old one, and swiveled the nipple on the carb up, so its a straight shot from the petcock to the carbs now. I pulled the petcock to verify the screen was clean, and it was spotless.

Sooo..I buttoned her all back up, turned the petcock to prime, turned the fuel and air screws out 1 turn, and she fired instantly, switched the petcock to "on", popped the choke off, and adjusted the idle down to around 1k....she purrs now! Took her for a 10 mile ride, and no issues..throttle response is quick, and she gets up and goes. I still need to adjust the air, and fuel screws a tad, as she puffs a tiny bit of black smoke when revving at high rpm's, so I'm guessing she's still a tad rich, but the plugs look really good. Unreal how something so simple can make me so nuts!

Thanks everyone for the insight! Now I have a bunch of extra jets I didn't even need,,ugh

Jeff (teet)

glad you got it fixed up i still think that 110's are rich for that set up go trade those big jets in for some 102.5 105 and 107.5 and test it out to see what works best read the plugs and see what they tell you
good luck

[teet]

glad you got it fixed up i still think that 110's are rich for that set up go trade those big jets in for some 102.5 105 and 107.5 and test it out to see what works best read the plugs and see what they tell you
good luck

Thanks...thats probably why the little puff. Yeah I should probably drop a couple sizes. Hopefully Z1 will swap some back, I bought 115, 117.5, and 120's??

Thanks!

Jeff (teet)

[Dave8338]

How those New jets working for ya?

[teet]

How those New jets working for ya?

Your too funny dave!! Well, they cost me $20 and I cant even use them for paper weights!


I know, I know..thats what my impatience gets me!


Jeff (teet)

[Dave8338]

Glad to hear that you got it sorted out. Almost ALWAYS something simple with these bikes...

[teet]

Glad to hear that you got it sorted out. Almost ALWAYS something simple with these bikes...

Thanks to you and everyone else that helped. Thanks again


Jeff (teet)

[renobruce]

Problem solved!!

I love a happy ending. sniff, sniff

[teet]

I love a happy ending. sniff, sniff

Aww..come on Bruce..now I'm gonna start..

Thanks for your help sorting out my BRAIN!!

Jeff (teet)

[renobruce]

If you played around with jet needle positions, re-synch your carbs. Then do the plug chop tests like Spyderman outlined. Now that it runs, start with the main jet and work down. If you change the needle position you will need to re-synch again.

[teet]

I didn't touch the needles, so hopefully I wont need to re-sync?? Where is a good starting point with the fuel and air screws? They are both at 1 turn out now.

I'll get a hold of Z1 tomorrow and se about swapping the jets I bought for some smaller ones.

Thanks!

Jeff (teet)

[renobruce]

I didn't touch the needles, so hopefully I wont need to re-sync?? Where is a good starting point with the fuel and air screws? They are both at 1 turn out now.

I'll get a hold of Z1 tomorrow and se about swapping the jets I bought for some smaller ones.

Thanks!

Jeff (teet)

Set the side air screws at highest idle. Hard to say exactly where to set the pilot fuel screws. You'll have to do some plug chops and read your plugs. I like to go about 2 miles in 4th gear at about 1/8 throttle. Pull in the clutch, hit the kill, and coast to the side of the road. Then read the plugs. If they are off a little adjust acordingly. Turning them out richens the mixture. A 1/4 turn can make a big difference.