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Post by Alleyoop on Apr 27, 2012 20:32:33 GMT -6
Yes on the bottom of the Diaphgram Cylinder there is a hole about 1/8 and it is a vacuum port here is how they work: The port from the Air Intake(FILTER SIDE) raises the needle and the air pressure from the VENTURI helps stabilize how fast the needle rises out of the Main jet. Alleyoop  |
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Scooter Doc
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Post by mike6736 on Apr 27, 2012 22:53:40 GMT -6
Makes since now just don't remember seeing it when I had mine out. You gotta remember that as I had you on the horn for so long. I think that is when I found that the spacer from intake to carb was cracked and had to replace that.
Mike
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Clinician
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Post by rcq78 on Apr 28, 2012 7:02:12 GMT -6
the problem is it ran great a month ago,then 3 weeks ago I pulled it apart to do somework on the swingarm bushings...Then after I put it back together & took it out for a ride and this started...why didn't it run rich before.....the a/f mixture screw is at the same setting it was before I cleaned the carb...I did pull off the airbox when working on the swingarm....This is really pissing me off that nothing seems to work,no matter what I try....I hope someone can come up with a fix...PLEASE
Update..looked to be a crack in the airbox where it meets the tube that goes to the carb...So I siliconed it..just took it out for a ride & when you get going 55-65 for a strech it falls flat on its face...the motor just loses all power,but don't stall,when you come to a stop it idles fine 1800rpm's....there is not spit or sputtering,just flat,
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Post by rcq78 on Apr 28, 2012 13:04:26 GMT -6
I just tore the carb & intake off & ran a bead of silicone around the oring on the intake & the spacer between the intake & engine...I check the airbox for cracks & look to have one between the box & the pipe that goes to carb,so I ran silicone over that area....Now,it's loses power at the same speed 55-65 & yes the rpm's drop...now when you stop to get power back it stalls,before it would idle ok....it still idles ok,once you restart it.....I'm going to adjust the a/f mixture...seems to be running lean now...Bob
When it loses power,no matter what you do to the throddle it does nothing....until you stop & it stalls then you restart it....
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Post by rcq78 on Apr 28, 2012 13:53:36 GMT -6
could adjusting valves,solve the problem of losing power???
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Post by rcq78 on Apr 29, 2012 10:00:14 GMT -6
well,I could not get the top off of the carb on the scoot that runs fine,so I didn't change out the diaphrams...
What I did was pull the carb off the one thats having the problems & what I found was a little gas in the tube from the airbox & gas in the area of the intake where it clamps around the carb...I'm so confussed...it looks like it's flooding out by looking at this....But yet,when it loses power or dies out there is nothing no matter whjat you do to the throddle....So,help guys...I'm actually thinking about a new carb,But I hope it cures the problems I'm having.....The last time my wife rode it, it ran great,but when she pulled in the driveway I noticed the fuel bowl drain screw down by the cvt was open a little & leaking gas,so I screwed it in tite but never took it back out until I fixed the swingarm bushings...while doing that it sit in the garage with no airbox on it....then the first ride it started doing this....like I said it idles grerat,but falls flat on its face at 55-65 mph....Well,need hel here PLEASE...Bob
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Post by rcq78 on Apr 29, 2012 11:45:55 GMT -6
well I switched the diaphrams from one scoot to the other & the scoot with no problems still runs great with the diaphram from the bad scoot in it....I took it for a 5 mile ride & no problems......I'm at a lose now......
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Post by Alleyoop on Apr 29, 2012 11:59:15 GMT -6
How does the one with the problem run? does it still bog on you? If so and you have gas in the tube and intake then I would have to say its the electric pump. It is maybe pumping to strong and the Float cannot keep the fuel inlet closed because of to much pressure from the pump. Or the plunger with the rubber tip is worn or has crud on it. Alleyoop  To test if it is shutting off the fuel Hold the Carb with the Float like in the picture and Put a hose on the Fuel Inlet and BLOW and push the float up softly to try and close off the air coming in.  |
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Post by rcq78 on Apr 29, 2012 15:00:28 GMT -6
Well,I have some very very good news...It's fixed...Stupid me,stupid me...You know that fuse back on the starter relay,Well while working on the swingarm I decided to move it to underneth the set...What I did was use spade connectors & attached them to a wire,then slid them in to where the fuse is then ran the wires to a fuse holder under the seat...I did this to both scoots,but mine I have no problems with..so,I removed my idea & put the fuse back where it should be & bingo...I took it for a 6-7 mile ride & it runs great...So now I guess I will be removing my plastics to put that fuse back where it belongs....I would like to thank each & everyone of yous who helped me & i'm sorry to lead you on to something it wasn't..I am sorry & this site is a great way to get info on these scooters....Again thank you all...Bob
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..BAD TO THE BONE..
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