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Post by wutzthedeal on Apr 17, 2014 21:12:27 GMT -5
Ok re-greased the guides and triple-checked everything; still only hitting 25mph. I also didn't mention before but it's sort of jerky at the "top" end. Have to find a perfect sweet spot to get to 25 cuz too much will bog, though after warmed up, it gets up to 25 pretty quick. I've lost 10mph on my top end and I don't know where it went. I'll put the factory air box back on tomorrow and see what happens.
UPDATE: Went ahead and ordered a variator and some new 9g Dr. P sliders, hoping millsc has the right idea about top end... just hope I'm not doing all this for naught if it turns out to be a cracked this or leaking that!
UPDATE: Also, Alleyoop, I have graphite lube which I used on the sliders last year; seemed to work fine. Should I use that again with the 9g and should I dab some on the guides instead of just the weights?
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Post by wutzthedeal on Apr 23, 2014 6:53:14 GMT -5
Update: Replaced variator, Dr. P. sliders, and plug today. After changing variator/sliders which was going from 7g to 9g Dr. P. Sliders, I actually gained low end acceleration somehow which I didn't expect, but am still maxed at 25mph. New plug didn't help. My last "swaptronics" hope is to finally replace the rear tire; hoping desperately that it became warped or something over the winter and that's what's causing this. Then if that doesn't work, I'll put the factory air box back on and/or loosen the exhaust to see if there was an obstruction and hope for a miracle before harassing the boards again.  For an update: 1. Wouldn't start and remain started, replaced carb 2. Starts, idles fine, but maxes out at 25mph and it takes a long time to get from 20 to 25. 3. Replaced: plug, belt, variator, rollers, front tire, air filter (for cone style--still seems to be getting too much air), fuel filter. 4. Inspected as much as possible: air and fuel lines, intake manifold, rear and front wheel movement (rear wheel does look just slightly off but not heavily warped--not sure if this could really be the cause of this). 5. Adjusted: valves which had slipped to .006/.005 so adjusted both to be sure, .004/.005. Fuel/air mixture multiple times along with idle per Alleyoop's methods. 6. Only change noted from steps 2-6: increase in low-end acceleration after variator/heavier slider change. Thank you guys for your help so far and all input is appreciated. |
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Post by wutzthedeal on Apr 24, 2014 19:29:16 GMT -5
Update: APPARENTLY the rear tire was the (biggest) problem; the old tire had about 4 oz. of liquid in it. I had used fix a flat once to seal what I thought was a slow leak that was actually coming from a loose valve stem; does that stay in liquid form? If that was water, HOW? And would that liquid put the tire far out of balance or did sitting all winter somehow warp the tire?
So now, instead of a quick jump out of the box to about 8mph, then a slow climb to 25 mph max with heavy bogging if suddenly accelerating on the throttle, it's quick all the way up to 25 and fairly quick up to about 29 mph with no bogging at any point; I believe all that remains is me tweaking the air flow issue (currently still have partially taped-over cone filter on to control what was too much airflow) to get me up to about 36 cruising since I upgraded from 7 to 9g sliders (can't help but wonder how 7g to 9g introduced INCREASE in acceleration unless it's a powerband issue--I'm 6'5 243lbs.)
NOTE: Rear wheel still doesn't "spin like a bicycle tire" as I had been told it would. With a medium strength spin, it goes about 1 turn and stops.
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Post by bashan on Apr 24, 2014 22:42:47 GMT -5
Is there some reason you guys don't drain your fuel systems in the winter? That's what that drain screw is for on the left hand side of the carb! What is this obsession with Seafoam? It does NOT protect your bike through the winter! Drain the fuel system...including the tank. If you keep dumping Seafoam in you lean out the mixture...it's a hydrocarbon...like gas....only it's a crappy combustible. Then you start trying to tweak the mixture because you have a diluted gas mixture. Read the directions...a CAP FULL! Further, you let your bike sit all winter, possible exposed to the elements and the clutch pads, variator mechanism, and BELT can get moisture laden and start sticking OR slipping. If you're going to treat your bike like that be prepared to go through it in the spring and replace everything you neglected. It's a lot easier to take care of it. Rich
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Post by wutzthedeal on Apr 25, 2014 5:10:55 GMT -5
Well I doubt that anybody that KNEW what you just described would allow it to happen; I didn't know. Some of us are just starting to learn about scooters. My lawn mower, weed eaters, chainsaws, and leaf blower never had a problem so it wasn't intrinsically obvious to me that it could be so detrimental to leave something unused for a season.
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Post by bashan on Apr 25, 2014 5:32:31 GMT -5
Sorry, I actually wasn't specifically talking to you although it did sound like that. I was talking to people that this time of the year roll their bike out and think that Seafoam is the holy grail of protection against the elements. Especially with ethanol in the gas nowadays it is even more important to drain them. Also, your bike has a CVT, your lawn equipment doesn't. However, I was rude and I apologize. Rich
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Post by wutzthedeal on Apr 25, 2014 5:43:29 GMT -5
Well it may have been coarse but I didn't know too much Seafoam was a bad thing, so thanks for the new info!
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Post by wutzthedeal on Apr 25, 2014 14:09:59 GMT -5
Update: hope I'm not confusing everybody with the updates--just trying to give a meticulous account of all that has gone on in the event it helps somebody else. If mods think this thread is too "winded," I'll be happy to consolidate all this in one post and we can delete the thread and I'll make the new post.
Anyway, while things were much improved with the rear tire change, I still wasn't getting the speed I wanted, and felt a slight bog on the very top. Went ahead and put the stock airbox back in in place of the cone filter; much smoother, nicer ride after adjusting a/f (and may have to adjust it more) to where I can max out throttle with no bog (just no gain in that top quarter range of the throttle, as expected) but it was a really windy day to test ride, so I was going 30 one way but got well over 40 another way, so that's putting me above 35 avg which I'm liking. I was really hoping these 9g sliders would give me just a few mph w/o much loss in acceleration, and it seems I've both gained in acceleration and top end. We'll have to see how this pans out when the wind dies down and everything is seated (since most stuff is "new" again...). Thank you all for your help. I think one of my final issues may be as bashan stated above; old gas with too much seafoam in (I put about a half a can in, total).
UPDATE: Nope, still lost top end. Have not solved issue yet. From what everybody is saying, most likely cause is: hole in piston, air or hose leak. I will update when resolved.
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