OK I AM VERY CONFUSED
Guest
Posts: n/a
OK I AM VERY CONFUSED
well when i rev it up it blows black smoke and pretty much is dumping too much gas in the engine i was told and was told to adjust my float height i pulled my plugs out last night and they are white doesnt that mean running lean which means too much air???? how can it be getting too much fuel and air at the same time????????
Senior Member
Joined: Mar 2006
Posts: 5,844
Likes: 1
From: South Texas
RE: OK I AM VERY CONFUSED
well, how old are the plugs? just b/c its rich doesnt mean they will be black after using them once....i dont think, lol. you probably need to check float heights and sync carbs. does it run like this constantly or just after you start riding? if you dont turn the petcock off it will accumulate too much fuel while sitting and act like they are running rich.
Guest
Posts: n/a
RE: OK I AM VERY CONFUSED
well the plugs are white so doesnt that mean lean? or do i have lean and rich confused isnt rich too much gas and lean too much air? honestly i dont know how old they are they were in the bike when i got it and i guess it sat for 5 years before i got it so you think its just **** plugs? also what is carb sync? ive heard of it but no clue what it is or how to do it lol
Senior Member
Joined: Mar 2006
Posts: 5,844
Likes: 1
From: South Texas
RE: OK I AM VERY CONFUSED
i would replace the plugs if they are five years old, you will be amazed at what that can do. do that first and see what happens.
http://www.cartestsoftware.com/fz1/c...onization.html
Carburetor Synchronization
Each of the engine's cylinders is fed by its own carburetor. It is important that these carburetors be properly balanced. For the engine to perform at its best, each carburetor must operate at the setting that is cooperative with the others. Properly balanced carburetors result in reduced vibrations, enhanced throttle response, more power, higher mileage, and optimum operating temperature. No cylinder should run hotter, cooler, richer, or leaner than another. The synchronization adjustment adjusts the setting of each carburetor's throttle butterfly valve so that the fuel/air mixture passed by each carburetor results in an equal load placed on each of the cylinders.
Each of the engine's cylinders is fed by its own carburetor. It is important that these carburetors be properly balanced. For the engine to perform at its best, each carburetor must operate at the setting that is cooperative with the others. Properly balanced carburetors result in reduced vibrations, enhanced throttle response, more power, higher mileage, and optimum operating temperature. No cylinder should run hotter, cooler, richer, or leaner than another. The synchronization adjustment adjusts the setting of each carburetor's throttle butterfly valve so that the fuel/air mixture passed by each carburetor results in an equal load placed on each of the cylinders.
RE: OK I AM VERY CONFUSED
it all depends on the condition of your carbs, you could be running rich at a certain rpm range then lean at another. What you should do is swap the plugs out as well as give the carbs a good cleaning in the bowl and clean the jets out. Might as well set the floats and mixture while you're at it. Though for the past year, my floats were over 4mm off and it never blew black smoke, just bogged when you cracked the throttle below 3000rpm.
Guest
Posts: n/a
RE: OK I AM VERY CONFUSED
yea the funny thing is it runs excellent doesnt bog down at any rpm rance just flies!!!!!!!!! lol. im waiting for a clymers manual in the mail so i can clean the carbs and adjust the float height. what is the height supposed to be set at and what do you use to measure? i take it its a adjustment screw or something like that? how much do the carb kits cost? im sure if i take the bowls off ill need new gaskets. kinda scetched out cuz ive never played with carbs and jets before so hopefully th emanual will show me how lol
Guest
Posts: n/a
RE: OK I AM VERY CONFUSED
ok cool thanks so what did you do just clean the bowls or all the jets and everything too? i dont have the money to send to the shop and im kinda scared to play with jets and needles lol but hopefully the clymer manual will show me the way lol
Junior Member
Joined: Sep 2007
Posts: 29
Likes: 0
RE: OK I AM VERY CONFUSED
If you are mechanically apt (think long and hard about that one) then take the carbs off and clean them up. Clean them THOROUGHLY! take the jets off and MAKE SURE they are not plugged.
Also, make sure the float needle isn't plugged and make sure it is working properly. If you are careful in disassembly and reassembly you do not even have to buy a carburator rebuild kit. Just remember, carburator jets and galleys are very small and almost any amount of dirt can plugg them.
Also, if you don't have a sync tool, take the carbs off together. Do not take them off individually. Do not mess with the adjustment. If they are already out of sync, you get them synced pretty close by using the drill bit technique which consist of using a small (thin) drill bit as a type of gauge on the buttefly (kind of like a feeler gauge). If you do not understand what I mean, do NOT attempt it.
Also, make sure the float needle isn't plugged and make sure it is working properly. If you are careful in disassembly and reassembly you do not even have to buy a carburator rebuild kit. Just remember, carburator jets and galleys are very small and almost any amount of dirt can plugg them.
Also, if you don't have a sync tool, take the carbs off together. Do not take them off individually. Do not mess with the adjustment. If they are already out of sync, you get them synced pretty close by using the drill bit technique which consist of using a small (thin) drill bit as a type of gauge on the buttefly (kind of like a feeler gauge). If you do not understand what I mean, do NOT attempt it.
RE: OK I AM VERY CONFUSED
The carbs should NEVER be taken apart to clean, its overkill. Odds are you wont need new float bowl gaskets as long as your bike hasnt sat without fuel for a few years, but I would have some silicone spray lube for them anyway.
Like said pull your jets and clean them out, take out your neelde seats as well and clean the filters with fresh fuel.
Also use compressed air to blow the jets out, if you dont have a compressor, you can get a can from computer shops.
As far as syncing your carbs go, theres a simpler way, though it is slightly less accurate, but good enough until you can afford to have someone sync them.
First: Adjust your idle screw so you can just see the first hole under the throttle plate. of carb number 2.
Second, adjust the sync screw between 1 and 2 to show the same.
Third adjust the sync screw between 2 and 3 to show the same
Then adjust the sync screw between 3 and 4 last.
finally back your idle set screw out so the throttle plate is closed. It wil have them close, but not perfect so youll still need to do a proper sync.
Like said pull your jets and clean them out, take out your neelde seats as well and clean the filters with fresh fuel.
Also use compressed air to blow the jets out, if you dont have a compressor, you can get a can from computer shops.
As far as syncing your carbs go, theres a simpler way, though it is slightly less accurate, but good enough until you can afford to have someone sync them.
First: Adjust your idle screw so you can just see the first hole under the throttle plate. of carb number 2.
Second, adjust the sync screw between 1 and 2 to show the same.
Third adjust the sync screw between 2 and 3 to show the same
Then adjust the sync screw between 3 and 4 last.
finally back your idle set screw out so the throttle plate is closed. It wil have them close, but not perfect so youll still need to do a proper sync.
Thread
Thread Starter
Forum
Replies
Last Post
