|
|
Post by bobf on Aug 3, 2015 20:03:51 GMT -6
Most everything done on my valve adjustment operation. My original thread is now in the "250cc and up Classroom (Chinese)". So I will start my ending comments right here in what I consider the regular forum area.
My access cover from the manufacturer was just too small to be any good at all for adjusting the valves. I used the top side valve adjustment system, loosen the clamp screw on the flag and allow the flag to fall. Then pick up the flag and look for a good running position with just nearly no tapping happening. And re-tighten the clamping screw for the flag. Then do the other valve the same way.
What a great difference that made to my scooter while riding it around the neighborhood. Instant starting, quick and rapid acceleration, plenty of legal speed in rather short distances, compared to original operations. Really happy with what I have done.
Now I will describe how I did this. The official viewing door was so small that I could not get both hands in there and use tools. Impossible design for my over size hands. Only the rear valve adjustment was visible. So I took a good hobby knife and cut across near the equipment tags, till about an inch from the front edge and then down to the near vertical edge. Then followed the vertical edge toward the rear and around the corner, then back across on the right end on the sloped area, and finally up the vertical edge to the original cut from rear to front.
Now I have a nice, large, opening where I could see the valve adjusting items and plenty of room for my hands and tools. Really happy with my new access area.
Now I am in the process of creating a way to get the cut out structure back into place with the ability to remove easily. I have made some aluminum parts I intend to glue and screw to contain them under the original housing. Then I will have the original housing sitting on these supports and will attach that to the original motor housing with a couple long bolts from below and held with a nut in place. Then I will use a couple wing nuts, if possible, or washer and nut, to hold the removable housing down to the engine cover. I will work on this cover replacement idea for the next week or so. When done I will come back and report on my success. I don't want it jumping around when riding. I won't know till I have success to brag about.
I don't have a lot of time as I would like for two reasons. 1. This is summer in southern Arizona. Garage gets really hot and uncomfortable when it is 105 to 110 outside. 2. I reported back in April about my wife and her heart attack. She is really doing quite well these days. But she takes a lot of my time by doing doctors and right now in physical therapy several days a week. Hopefully in September she will have developed enough that we will be able to have our own schedule for training and observation. Maybe October will be time on our own again.
More to post when I finish. Maybe a photo or two if I can figure out how to do that.
|
|
|
|
Post by JR on Aug 3, 2015 21:10:14 GMT -6
Most everything done on my valve adjustment operation. My original thread is now in the "250cc and up Classroom (Chinese)". So I will start my ending comments right here in what I consider the regular forum area. My access cover from the manufacturer was just too small to be any good at all for adjusting the valves. I used the top side valve adjustment system, loosen the clamp screw on the flag and allow the flag to fall. Then pick up the flag and look for a good running position with just nearly no tapping happening. And re-tighten the clamping screw for the flag. Then do the other valve the same way. What a great difference that made to my scooter while riding it around the neighborhood. Instant starting, quick and rapid acceleration, plenty of legal speed in rather short distances, compared to original operations. Really happy with what I have done. Now I will describe how I did this. The official viewing door was so small that I could not get both hands in there and use tools. Impossible design for my over size hands. Only the rear valve adjustment was visible. So I took a good hobby knife and cut across near the equipment tags, till about an inch from the front edge and then down to the near vertical edge. Then followed the vertical edge toward the rear and around the corner, then back across on the right end on the sloped area, and finally up the vertical edge to the original cut from rear to front. Now I have a nice, large, opening where I could see the valve adjusting items and plenty of room for my hands and tools. Really happy with my new access area. Now I am in the process of creating a way to get the cut out structure back into place with the ability to remove easily. I have made some aluminum parts I intend to glue and screw to contain them under the original housing. Then I will have the original housing sitting on these supports and will attach that to the original motor housing with a couple long bolts from below and held with a nut in place. Then I will use a couple wing nuts, if possible, or washer and nut, to hold the removable housing down to the engine cover. I will work on this cover replacement idea for the next week or so. When done I will come back and report on my success. I don't want it jumping around when riding. I won't know till I have success to brag about. I don't have a lot of time as I would like for two reasons. 1. This is summer in southern Arizona. Garage gets really hot and uncomfortable when it is 105 to 110 outside. 2. I reported back in April about my wife and her heart attack. She is really doing quite well these days. But she takes a lot of my time by doing doctors and right now in physical therapy several days a week. Hopefully in September she will have developed enough that we will be able to have our own schedule for training and observation. Maybe October will be time on our own again. More to post when I finish. Maybe a photo or two if I can figure out how to do that. Photos are easy, there is a post on how to do so Bob. Your original thread was moved to the 250 section because you have a 250 scooter. Glad to hear of your wife doing better. Yes it's hot here too, know how you feel. thescooterprofessor.proboards.com/thread/4173/easy-picture-postingJR |
|
|
|
Post by ellpee on Aug 4, 2015 7:08:22 GMT -6
If you really want to do all that nuts/bolts/screws stuff, your call, but as I posted in your other thread, my solution was to cut a piece of flexible plastic material, sort of like linoleum flooring, to just larger than the opening, and use velcro at several point around the edges to hold it in place. Works just fine, cargo area still completely useable, and removing it to get access to the engine takes all of two seconds.
|
|
|
|
Post by bobf on Aug 4, 2015 14:00:46 GMT -6
Ellpee, I have the complete piece of engine cover that I cut away. So rather than toss it out I am just doing something to allow it to be used. I have thought about using Velcro to help hold things together, still not tossed out. That may become my hold down technique yet. First is the preparation for holding my cutaway part from falling down onto the engine. My cut out piece has two straight cuts along the top and the two sides dropping down on the left side and rear side.
With the schedule I must keep it will be a lot of time, days, to finish this job.
|
|
|
|
Post by bobf on Aug 4, 2015 14:04:14 GMT -6
Thanks for the move JR. I guess I was wrong as I thought I was on the 250cc location when I posted.
|
|
|
|
Post by JR on Aug 5, 2015 7:42:47 GMT -6
Thanks for the move JR. I guess I was wrong as I thought I was on the 250cc location when I posted. No problem Bob main thing is getting your scooter going like it should, stay cool! |
|
|
|
Post by bobf on Sept 6, 2015 16:37:02 GMT -6
OK, got a question about my valve adjustment. I have done little riding at all since doing my valve adjustment. Some short runs around the neighborhood but mostly just occasionally run in the garage to help keep the fluids mixed and the battery happy.
Recently it started hard and if running I needed to keep fiddling with the throttle hand grip. It would slow way down and eventually stall if I did not keep raising the speed. So I took the cover off the engine top and used my Phillips to turn the idle screw clock wise a bit. Then it started to run much better. So I took it around the block today and it just kept running fine. I suppose I will find out tomorrow if it is still running or if it has gone out of control again.
Can this happen after adjusting the valves? Do they somehow settle down and cause starving after being adjusted? Just wondering how it seemed OK after adjusting but after a few weeks it decided to act badly for me. It has been a few days since I reset the carbs idle screw and it started and ran fine. Today was my first ride on the streets and no problem. Tomorrow will be my first start after a ride. Hope it is good. Temps are finally getting below the 100F mark so maybe I will ride more often.
|
|
|
|
Post by bobf on Sept 8, 2015 15:17:48 GMT -6
Today, it once again started poorly and slowly jerked itself to a stop. Even after it has completely warmed up it would no longer idle. So once again I played with the carb by opening the idle screw that I had closed a bit a few days ago. The engine started to speed up. I also tried to reset the valves once the engine was all speed-ed up to about 1,000 rpm. Just not happy with its idle now.
So I guess I will wait a couple weeks now and hoping for some much cooler temps. We are slowly ending those 105 and 110 and over temps. But even the high 90's we had today are pretty uncomfortable. Hoping for some cooler mornings and afternoons no longer in the high 90's.
I guess from reading some of these posts that I should pretty much go do a total inspection to specs. That means all items like carb, engine settings, valve adjustments (once again), Check and tighten all hoses and fittings. Would like to get it running well once again as my leader wife would like to see me sell the thing before my 82 year old frame gets hurt or worse. I guess she is likely right.
Anyway, any ideas for what I do now or in the future cleanup exercise??
|
|
|
|
Post by cyborg on Sept 9, 2015 6:54:49 GMT -6
i think it is a carb issue myself,,
|
|
|
|
Post by bobf on Sept 9, 2015 11:42:20 GMT -6
I tend to agree. So what would you do? Are there carb kits available to purchase? And where? Or just a good cleanup and reassemble using the older parts? I have done plenty of auto carbs and lawn movers too. Just never done a carb like on this scooter. I guess I would need to be sure I have he correct carb number and make and try some scooter shops.
Thanks for you inputs. Agree on carb as my first time it was turn screw clockwise to make it idle and the second time it was counter clockwise to make it idle better. Neither was as good as before.
|
|
|
|
Post by ellpee on Sept 10, 2015 7:22:55 GMT -6
bobf, you can buy an entire new carb for $75, and now that you have a gaping hole under your seat you should be able to replace it yourself with ease. Compare that to removing, overhauling, and reinstalling your current carb, counting the cost of a kit if you can find one, and with uncertain results, likely the best $75 you'll ever spend.
Just checked back, I paid 78.70 shipped.
|
|
|
|
Post by bobf on Sept 10, 2015 9:22:10 GMT -6
Thanks ellpee. That may be the best move at that. But my big hole is over the valve adjustment area. The carb is further front near the battery area. You can see the carb on my scoot by removing the cover over the battery. And for doing all the fittings checking it appears that I might just remove the body parts once again. I seem to be getting quite good at that operation.
Wife now done with the doctors, hospitals, phys ed classes and now back on our own for care. Don't have a heart attack, they take up a lot of time and money while trying to get better. We did have some good insurance this time.
|
|
|
|
Post by ellpee on Sept 11, 2015 7:31:57 GMT -6
Glad to read that last part. And you're a better man than I when it comes to removing plastics, I hate that part.
|
|
|
|
Post by bobf on Sept 11, 2015 19:38:30 GMT -6
elpee, where did you find the carb for your motor? I still have not located my carb number, but soon will do that, then I can order one for the scoot. If you are satisfied with your vendors service I will give them a try. Still happy with my new electrical part I put on last year. So you have done me good on that item. Ready for another good idea.
Do you ride a 3 wheeler or a 2 wheeler?
|
|
|
|
Post by ellpee on Sept 12, 2015 7:14:30 GMT -6
I have a Roketa in Tucson and a Magnum Trike in Ruidoso.
Don't remember where I found the carb for the Roketa, but will try to find it again.
|
|
