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Post by speedracer on Mar 12, 2011 10:14:44 GMT -6
gmoney, I had changed those vacuum lines the first week I had the scooter. I used the top nipple and ran it directly to the fuel pump. Now after the change in fuel pump and a slight adjustment on the rich side of the A/F screw it started on the 5th time. Almost started on try #4. I too installed the DF-44 pump. Since this is always a morning issue for the scooter or first try to start after it's been sitting for 12 or more hours I made a second 1/8 turn on the rich side of the carb. Once again another wait to try it out.
As far as Seafoam goes I have used it from day one. I always add an ounce per each gallon of gas I put in. It is a habit of mine.
There has been some improvement. After it sits for 15-30 it took throttle to start it. That problem has gone away.
Alley, this board and all the others would be blank if it were not all the piece of crap China scoots. A sucker born every day, so I would have no problem selling it. LOL
mcalli, did you receive the new battery? Or still waiting on it? When it arrives put in on the charger just to make sure you have a full charge. As far as your fuel gauge, fill it up and reset the odometer to zero. When it hit around a 120 miles fuel it back up and reset back to zero. You won't run out of gas.
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Post by speedracer on Mar 11, 2011 19:55:47 GMT -6
Alley, I didn't mention the air filter, but I clean it every 1000 miles and that was cleaned about 300 miles ago. Now as far as the A/F screw goes. There is no way to get at it while the scooter is hot from a run. The only way to get a screw driver on it is to loosen both the intake and manifold clamps and turn the carb 90 degrees. Then after the exhaust pipe is cool enough you can make an adjustment. This is a hit and miss thing. I pulled the plug which has about 100 miles on it and it showed the engine was learn. So I did make it a little richer by a 1/4 turn.
I did put a Mikuni fuel pump in, but I won't know until tomorrow if it's going to start right away or not.
kz1000st The scooter has 3300 miles on it and this is the 3rd plug so far. The new NGK iridium according to Doc is a hotter plug, but the results are the same. I have checked the spark and it's a bright blue so I don't think I have a coil problem.
No one has mentioned my 3rd solution which is put a for sale on it.
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Post by speedracer on Mar 10, 2011 19:41:22 GMT -6
Hard cold starting Roketa 54B .... Here is what is not wrong with it.
1. Valves (did it)
2. Spark plug (new)
3. Vacuum lines (new)
4. Fuel filter (new)
5. Starter (cranks over fast)
6. Enricher (new one installed)
7. A/F has been adjusted many times to no avail.
It takes exactly 8 tries to start engine after sitting all night. Once it starts it keep running. It has never stalled once running. It has plenty of pick up. It never bogs down. If parked after being run at least several miles it will only start by giving it throttle. Once started no problems at all.
I have three things left I could do.
1. CDI
2. MIKUNI fuel pump which will be installed tomorrow.
3. For sale sign put on it.
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Post by speedracer on Mar 4, 2011 17:03:24 GMT -6
skysoldier173d
You had mentioned that your fan sucks air in when it's on. I checked my fan and it does the same. I have not had any over heating problems except after changing out the antifreeze. Then after about burping it 3 times it has been fine since. My fan kicks in when the gauge goes just above the middle marker. Perhaps the fan is running the right way as the engine is not even close to the radiator unlike a car where is apart of the engine. My .02
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AMP's
by: speedracer - Feb 27, 2011 15:47:32 GMT -6
Post by speedracer on Feb 27, 2011 15:47:32 GMT -6
Cruiser thanks. You made up my mind to go to the 9 amp. Any suggestions for a good vendor?
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AMP's
by: speedracer - Feb 27, 2011 14:47:43 GMT -6
Post by speedracer on Feb 27, 2011 14:47:43 GMT -6
I have a 250 54B scooter with a 6 amp 12 volt battery. Should I upgrade to a 9 amp and if so why? Thanks
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Post by speedracer on Feb 27, 2011 13:05:26 GMT -6
Does this also mean a low amp battery is less effective for starting a scoot as would a poor connector? I have a 6 amp battery and it seems like most everyone has 9 amps.
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Screw size
by: speedracer - Feb 24, 2011 6:54:56 GMT -6
Post by speedracer on Feb 24, 2011 6:54:56 GMT -6
Thanks guys.
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Screw size
by: speedracer - Feb 23, 2011 17:40:28 GMT -6
Post by speedracer on Feb 23, 2011 17:40:28 GMT -6
Any one know the screw size for the screws which hold down the choke? Thanks
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Post by speedracer on Feb 20, 2011 12:57:29 GMT -6
You can use 45 w bulbs using the oem base and not have a heat issue and plenty of light for night riding.
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Post by speedracer on Feb 20, 2011 12:51:01 GMT -6
Any good dealer for a 10 amp battery which fits a 250 54B? I just looked at mine and it has a 6 amp battery in it.
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Post by speedracer on Feb 5, 2011 18:53:15 GMT -6
 I want to thank Jim for taking a lot of his time in helping me find a set of Dr Pulley Sliders and matching U slides. He even suggested some of his competitors in order to help me out. Thanks Jim.
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Post by speedracer on Feb 5, 2011 18:12:12 GMT -6
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Post by speedracer on Feb 5, 2011 18:08:22 GMT -6
I think that is the problem Alley. I don't have a scale and to be honest with you when the package is sealed and says 12g I take their word for it. I guess I need to remember a 10 year old is packaging them.
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Post by speedracer on Feb 5, 2011 13:24:51 GMT -6
I replaced my Dr Pulley 12g sliders with a new set of Dr Pulley 12g sliders. Started scooter up and all is well except that now it the idle was at 2200 rpms. Took it out for a ride and now I notice when pulling 4000 rpms my speed is about 45 MPH where with the older sliders I was close to 50 mph.
The box said 12g on it, but I am thinking they may have put 11g sliders in the box. I'm sure not going to take them out and weigh them it was a big enough PITA changing them out. I did lower the idle to back to 1800 where I usually have set at.
The scooter is running great so whatever weight is inside is going to fine with me.
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I want to thank Jim for taking a lot of his time in helping me find a set of Dr Pulley Sliders and matching U slides. He even suggested some of his competitors in order to help me out. Thanks Jim.