Clinician
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Post by rocketapos on Jul 22, 2014 23:26:29 GMT -6
Yup, thats the screw I was using. I looked at some pictures and videos before doing the cleaning, so I had a pretty good idea of what everything was.
I will say I cleaned, or at least sprayed carb cleaner in all the passage ways, but I will go ahead with and screw it in all the way then back it out 2 1/2 turns to see if that fixes the issue.
It runs betters when cold, and doesn't bogg down as much now. So it does appear that it is now an air/fuel mixture problem.
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Post by rocketapos on Jul 22, 2014 21:25:36 GMT -6
This scooter has been abused, it needs a lot of work, but I just need to make it last me for another month, going to get a dual sport. And this scooter is my only way around & to get to work and back.
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Post by rocketapos on Jul 22, 2014 21:23:16 GMT -6
Well after I cleaned the carb, it was idling alot higher, so I have to adjust the idle air screw to lower it down.
As for the air/fuel mixture screw, it is on the passenger side next to a copper plug and is a flat head screw, when changing it to almost a full turn it doesn't do anything, really odd.
It just boggs down when taking off from a stop, last week before I cleaned the carb it even stalled out a few times (before it would drop rpms to almost nothing but not stall out).
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Post by rocketapos on Jul 22, 2014 21:09:19 GMT -6
That what I did, let them soak, and for good measures sprayed carb cleaner in the jets and their passage ways. On a side note, the carb looked spotless/brand new in the insides.
However I will mention that the adjust fuel/mix screw does nothing, its a little bit odd.
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Post by rocketapos on Jul 22, 2014 20:14:37 GMT -6
Update: I cleaned the carb, and left the two jets soak in carb cleaner for an hour, however it still has the same problem. Any idea of what could be the issue?
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Post by rocketapos on Jul 9, 2014 22:26:23 GMT -6
Just noticed the 2nd page. Bashan thank you for explaining exactly why the STP is allowing it to run.
Also, to clean the carb I need a socket set to remove the bolts holding it onto the engine, which I will be buying with the carb cleaner when I get my next pay check. Unless I'm completely blind or there is another way to clean the carb without removing it from the engine?
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Post by rocketapos on Jul 9, 2014 22:22:50 GMT -6
kz1000st thanks for that. Thats pretty much my plan, my sister got me two STP cans, and I use half a bottle per tank (crazy since 1/2 bottle is for 12gallons) so I can ride it until I can get some money to buy a socket set (10 bucks but trust me I have no money) and the carb cleaner.
I do feel Alleyoop is 100% correct on the problem and that will be what I do to correct the problem.
However I'll admit I've never works with carbs before (worked on dirtbikes but never had a carb problem with them). I'm afraid that I'm going to remove it, clean it out as he said, put it on the bike and it wont start or run correctly/worst then when I started. Any tips on now screwing something up when cleaning the carbs?
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Post by rocketapos on Jul 9, 2014 12:25:57 GMT -6
Also checked to see if the gas cap is venting and it appear it is. No sucking sound when I open the cap after a full gas run.
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Post by rocketapos on Jul 9, 2014 12:18:09 GMT -6
So today on my day off, I was able to mess with the fuel/air ratio screw (keep in mind I only have a screw driver set which is why I haven't checked out stuff until I get my paycheck) and found out that changing it clockwise/counter-clockwise does nothing to the rpm like it should (either raise or lower it.
Any idea why it is not changing the rpm? I warmed up the motor for about 10minutes before messing with it.
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Post by rocketapos on Jul 7, 2014 19:41:29 GMT -6
Thank you guys for helping me with this issue, however I would like to understand why this is happening, let me give you (from my very limited knowledge of scooters) my idea whats going on to see if its correct.
The auto-enricher gives extra fuel to the engine for the first few minutes (2miles for me it seems like) then closes up. And the reason why my scooter is acting up is because my jets are not providing enough fuel when the auto-enricher closes due to build-up.
However I still don't fully understand how STP will allow my engine to run just fine, and without it cause the above problems mention. Any insight as to way? I'm a person who doesn't want to just fix problems but rather understand them as well.
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Post by rocketapos on Jul 6, 2014 22:59:48 GMT -6
Thank you guys for replying back to my issue, I will look into the auto-enricher. I would of personally pulled the plug and replace it, however due to family issues I moved across the USA, and was unable to bring all my tools. Money is so tight I'm unable to even by a cheap china socket set to check my spark plug. I'm used to working on dirtbikes and cars/trucks. However I do not have the history of this scooter of what has been done to it (owner only had it a few months before selling it to me) and wasn't sure what has been changed. I personally never would of got a scooter without a history but with tight time/money and getting a job from moving I did not have the choice of getting something better. (Was only $500 bucks after all)
I've checked the air filter and its pretty much perfect. As for the seafoam, its almost ten bucks a can so I wont be able to do that now. However I feel you guys are 100% on the auto richer/choke.
I will state the scooter did run fine when I drove it 45minutes back from where I brought it. And ran fine for the next week. After that I let it set for about a month (really tight money/didn't have a job yet) and then once I found a job and started to ride the scooter this is when the issue began.
Is there a simply fix I could possibly try (I did bring my meter with me) to fix this? Such as simply removing the auto-choke and seeing if ethanol build-up is on this part. Let me state that scooters are brand new to me, and I don't fully understand how they are setup and work.
I use to be apart of a ford ranger forum, and personally understand how annoying newbies can be when it comes to these issues/understanding.
Let me note, I am fully aware of the octane and its affects on HC/LW engines. I just assumed that since the EPA tag on this scooter stated to use 90 or above octane that it was a HC engine. What would you guys suggest to use mid-grade or low-grade?
Again, thanks for the understanding of my issues, and for the help.
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Post by rocketapos on Jul 6, 2014 21:03:50 GMT -6
Let me add, that the scooter starts up like a clock, no issues there.
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Post by rocketapos on Jul 6, 2014 21:01:04 GMT -6
Scooter: 2006 Rocketa Cayman 150cc gy6 (1,600 known miles)
Speedo has been broken since I got it so have no idea how many real miles are on it. However from the tires it doesn't seem too many miles are on it on the factory tires.
Issue: The scooter will run perfectly for the first 2miles on a cold startup, then it will act like its not getting gas when accelerating from a stop light. However it will idle perfectly while the light is red.
When accelerating from a dead stop (only after its been driven for 7-10minutes; will not do this on a cold engine until 7-10minutes) it will almost like act like its not getting gas, wont accelerate, then will accelerate for a second or two, and it repeats itself for about 10seconds until it run (but still a little hesitate on full acceleration.
My work around: When I put in half a bottle of STP Fuel Carb/Injector Cleaner into a full gas take it will run perfectly without any of these issues. If I ever fill up with 91gas and don't put this into it, it will act up immediately!!!!!!
So something with this stuff is allowing it to run just fine, without it; it simply is un-driveable (people honking at me at lights when it turns green, road rage, etc)
Also, this is my only method of transportation for work and anything else. Without this scooter I'm facing a huge lost. Just need to find out why it is acting this way. I can ensure you this scooter has not been taken care of in the past, and due to limited funds currently I can't just start replacing parts here and there. (However I understand how important general maintenance is; when I had the funds & my truck, I was replacing my oil every 2k and replacing parts before they broke).
I was believing it could be ethanol buildup the first few times I put STP in the fuel, however since it doesn't run without it I am believe other issues are the cause. Maybe the STP is boosting the octane due to some mixture issue allowing it to run.
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