The bike wants to start but won't turn over. Put brand new plugs in and after one short trip they are fouled out and bike will not start and gas smell is STRONG even with gas off.
It appears that you have what we used to call a bleeder. Where the carburetor leaks gas into the manifold past the jets. I have found instances of this in the 2nd market carburetors especially. It is possible the carb may need rebuilt and gas is leaking past the needle on the float. If not then I would recommend replacing the carb. I have always had excellant results from Mikuni on these big bikes.
wow , okay I'll bet you have the S&S carb on it. I've seen these bleed before. the crash may have knocked out the float level. If you take the bottom off the carb then underneath there will be a circular float, when the gas fills the bowl this float pushes a needle into a seat to stop the flow of gas. As gas is used the float drops and allows more gas into the bowl. It is possible the carb can e repaired, but it must be disasssembled to tell that. Hopefully you have trust in someone to look at that for you.
My late wife was the first lady I ever saw to ride her own sled, she built it in the dining room of our house. '63 panhead on jammer frame with durfee girder. She was a slight lady and when she single kicked that pan off it got attention. That was in 1977. and in 1979 we took off and went from Caribou Maine, to Key West, and west coast. crossed the nation 3 times just the two of us on custom pans we built. Travels ended when I stacked it up in Ruidosa, NM. Times were different then, Daytona, Sturgis, Bowling Green. We finally settled in the pacific northwest, still rode. She passed away from a stupid asthma attack whle she was in the hospital at 49.
Ride free, Be safe.
Thank you again Donald Roeber! And yes it is a S&S carb. Not sure if it is an "E" or "G". And yes hopefully a friend of mine is having his bike mechanic look at it and he is reasonable for labor so I am HOPING just rebuild or fix!!! Cannot afford new Carb. right now. Actually just came home from a MRI on the leg it is still not doing very well and it has been since April. I actually as hard as it is going to be because my fiance bought the bike when he worked for Cape Cod Harley Davidson in 1994 and took it out of the crate,even found the original invoice and handbook never opened because he was such a great mechanic,but I have to sell it and downsize for myself. And pay some bills. Thank you for sharing your story she sounds like she was an awesome lady. My fiance was wonderful we were together for 8 years and woke up one morning and he was sitting on the couch with the remote in his hand and his heart had stopped and so did mine,that was 05/23/2011. So wanted to keep the bike and ride but after the tree and I met I heard his voice in my ear and he said you are still alive and the bike is not totaled so you know what to do,he watches over me. So again thank you for your help and you also ride free and be safe.
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SOURCE: xr200
It sounds like the previous owner liked to tinker with the carb. I would pull the carb, CLEAN IT and check what size jets are in it. #115 is the stock main jet. #38 was the stock slow speed jet used that year. In the center of the slide, check where the clip is set on the needle. Position the clip mid- range of adjustment. If the bike bogs when you open the throttle, move the clip down one notch. Two notches may be needed but start with one. Be sure the owner has not lost the needle jet holder, part #16 on the parts diagram I am sending you to. Both the air and idle screws start at one & one half turns. Look at the tips of the adjusters. If they have a "ring" mark or depression mark where they were screwed in too tightly, then the screw(s) and jets should be replaced. These are adjusters and not really a screw. Seat them LIGHTLY then come out 1.5 turns.
Go to the site below where you can see a parts diagram for your specific bike. You will select the actual brand, year, model, etc., once you go to the site. Part numbers and prices are also shown. You can order parts from this site. In the event no price is shown on a particular part, the part is not in stock. www.babbittsonline.com/pages/parts/viewbybrandand/parts.aspx Go to the "CARBURETORS" tab to see the assembly. There is a slight chance the OHC may be one tooth out of proper position. We will check that after the carb has been put in order and tested.
I hope you will be able to rate this answer as "Very Helpful". Thanks
SOURCE: spark keeps fouling but no clue why
Are you losing gear oil.
When the crankshaft seal leaks, oil from the gearbox is sucked into the crankcase, and this can foul the plug.
Also check the plug gap, most guys set the gap too small. It should be 0,7mmto 0,8mm. The plug should be a B9 EG, or equivilant.
Now, you can also change the plug cap to a type that has a built in resistor, this also helps with plug life.
Note that 2 strokes use plugs way more than 4 strokes, and you should replace the plug every 15-20 hours to keep your riding pleasant.
Good Bike you have there
Cheers
Jon
SOURCE: wondering what the carb settings are for a 1983
The header says it is a 2004 YZ250F. That's a four stroke and gets no oil in the gas. Your 83 model is a two stroke. As far as the oil and gas mix, 32/1 is the proper mix. That's 4 ounces of two stroke oil per gallon of gas.
DO NOT USE STANDARD MOTOR OIL IN THE GAS.
Remove the water trap bowl at the bottom of the petcock, (gas valve). Any water or trash in the bowl? Drain a cup of gas from the tank. Any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).
Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.
Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the two screws on the outside throat of the carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Be sure the bolts are tight. Let the float bowl fill then start the engine. Set the idle speed with the idle screw. This process should get you back on the road.
Please rate this solution. Thanks macnevind!
SOURCE: how to you properly adj a 2-stroke carb on a
Heat the bike up, give it a ride for at least 15-20 minutes. in idle, try adjusting the little black knob attached to your carburetor. This
will adjust your air/fuel mixture. Adjust it little bits at a time, and
then wait for a second before adjusting further (to allow the mixture
to change). Pay attention the idle, and how the bike sounds. Adjusting
that carburetor should help.
for more info on 2t carbs
http://www.freeengineinfo.com/two-stroke-carb-tuning.htm
http://tech.flygsw.org/walbro_tuneup.htm
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Thank you Donald. I should explain this was my fiance's bike who was a Harley Tech.for over 20 yrs.but he passed away. I am not a tall or big girl and had upgraded the motor (bored out motor upgraded cam etc...) So it is a very powerful bike.Well back in April after a freak accident,I was at the top of my driveway and went to take off put it into 1st some throttle clutch popped hit shut down but the small tree in my neighbors yard across the street was very close. I broke my right leg and dislocated my fingers on my right had badly holding onto the front brake. The controls on the right side mirror and all were about 3/4 the way around the bar. Nothing broke. Put it back in place and also checked wiring to start and controls all still in good. The only other thing to break was the headlamp hood already replaced. The bike did end up on the right side of the bike but I took the most abuse. It ran to a friends about 150 miles away and then would not start but friend had left the gas on flooded,had him gas off open choke it started. Only worked again for a short time. New plugs ran for a short time and gas fouled. So would your solution still sound ok? Sorry for the long story. Also my fiance always used a high grade gas only which I have. Had changed the oil used synthetic 20/50? He used that also. Not sure what plugs my friend used to replace I was laid up with my broken body and just recently got to go to the bike and work on it but still will not start,my fiance was a good teacher!
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