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Post by tvnacman on Sept 13, 2014 17:15:23 GMT -5
have you done any jetting in the carb ? If not pull the carb drip some fuel into the cylinder while cranking , see if it fires . no air filter on the carb could be creating too lean to fire .
John
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Post by tvnacman on Sept 13, 2014 17:08:24 GMT -5
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Post by tvnacman on Sept 11, 2014 11:55:34 GMT -5
Go to a tire shop and ask if they can give it a try .
John
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Post by tvnacman on Sept 11, 2014 11:51:38 GMT -5
Sounds like too much pulley movement too fast . Could be s high spot on the variator or a soft spot in the clutch spring . Does it hsppenbon the center stand ? John Yes it "did" Ive changed the variator and clutch since then, but the clutch was the problem. What did you find in the clutch ? Perhaps you did not dig in , I get phone calls with people asking for tech help . If you only changed the clutch as a complete unit and have no intent to look further . I would like to have the clutch to locate the failure . John |
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Post by tvnacman on Sept 11, 2014 5:23:12 GMT -5
Sounds like too much pulley movement too fast . Could be s high spot on the variator or a soft spot in the clutch spring .
Does it hsppenbon the center stand ?
John
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Post by tvnacman on Sept 9, 2014 11:12:43 GMT -5
Where are the valves located? ~Sincerely a noob. You might want to start a new thread , state what scooter engine size and how many miles . John |
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Post by tvnacman on Sept 7, 2014 7:06:19 GMT -5
I didn't read all of this but I'd like to throw out there it sounds like a bad main spring. It happened to me. Alley diagnosed it for me about two months ago. JMO, Rich When you break down the clutch you can check the main spring , you also want to squeeze the pulley opened and make sure it slides and rotates opened closed smoothly . You also want to make sure the clutch pads move out smoothly also . John |
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Post by tvnacman on Sept 6, 2014 19:54:39 GMT -5
craigslist.org
I remember seeing a post somewhere that diesel powered scooters were blocked from being imported . With that said I think it has been done and in production , just not here in America .
I would imagine it would need to to be water cooled , high compression for ignition . It would need very tall gears due to low rpm . I would like to see this unit .
John
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Post by tvnacman on Sept 6, 2014 13:11:35 GMT -5
break down the clutch get out all the chinese grease clean it up real nice , lube all the pivot points regrease the bearngs , sand the bell and pads remove the glaze. Take the hour on the clutch it will be time well spent .
John
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Post by tvnacman on Sept 6, 2014 13:04:14 GMT -5
It could be the variator binding and holding closed a bit . Don't be intimidated by what is under the cvt cover . Its not a bad thing to overhaul the clutch even if it is not where the problem is coming from . I like to break it all down clean it up real nice get all the chinese grease out , lube all the slides and pivot points sand the pads and bell to get the glaze off .
One thousand rpm is low , I suspect the tach is off too .
How far from NYC are you Captin ?
John
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Post by tvnacman on Sept 6, 2014 12:06:17 GMT -5
I have been using this on the 16" wheel scooter it clears the cross support bar .  On the ones that the cross bar is in the way I use this one not a great picture .  Cheaper version linkJohn |
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Post by tvnacman on Sept 3, 2014 14:46:18 GMT -5
I have not had much luck getting hoses sorted out to get things working correct . I caped then bypassing them , then was able to get the engines running well .
John
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Post by tvnacman on Aug 31, 2014 19:34:24 GMT -5
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Post by tvnacman on Aug 30, 2014 7:03:28 GMT -5
Hello again everyone  I've been wondering what appropriate parts I should put on my scoot next and just don't possess the knowledge on the items in the title. I have a QMB139 49cc Engine that I installed this BBK from EBAYBut I'm curious as to which piece I should add next. I know next to nothing about the items I'm needing suggestions on other than a little that I've been able to read. Clutch/springs/pads I ride on mostly hilly terrain and my current clutch setup is warn. From a dead stop, you can hear it "whine" when you go to take off. This doesn't do it ALL the time but I think it's in need of a change since it's stock anyways. Variator/Rollers I was looking at purchasing this one on EBAY but unsure as to what weights would perform better for me for that "happy medium". From what I remember reading, The lighter the weight, the faster the takeoff and acceleration, the heavier the weight the slower takeoff and acceleration but the faster the top speed. Exhaust I'd like to find an affordable "performance exhaust" (who wouldn't..lol!) but am unsure where to look for good ones. I still currently have stock and it does "ok" but again, I feel it is a MUST to replace with the upgraded BBK installed. Rear Brakes From what I know, I have a rear brake drum and they SUCK. They've never been good, even from the dealer. I was wondering two things on this one. 1 What would be some good replacements and are there any tips for maintaining them. 2 Is there any chance I can convert it to disc like the front or is that not possible? Any and all help is greatly appreciated as it's been a year and I don't know what to get next or what would be the CORRECT parts to get. Thank you for reading and Ride Safe -Tim I did drum to disc conversion , I started looking for a scooter that was similar with disc brakes , I took a careful look at where the caliper was mounted (engine or swing arm) and how . Someone posted a scooter like mine with disc brakes . Then selecting the master cylinder I had to make sure the brake hose laid in the head set without binding while turning , the mount for the mirror mount needed to line up with the hole in the head set too . I needed a new wheel , it had to fit my engines case correctly then the rotor had to be perfect . Then I had to cut the rear wheel spacers to get it all to line up without any stress . As for your clutch the bell gets glazed you can sand that off light sanding of the clutch pads . I found it better to breakdown the clutch wipe it down with WD40 cleaning out all the old grease and lube the slides spring seats bearings , take close attention to the clutch pads they are on pivot pins on one side and a spring on the other , wipe them clean with wd40 and grease them . Use high temp bearing grease check your bearings for imperfections , you need grease that will not run when it gets hot . When you get it back together make sure everything moves smoothly , remember not to over grease the slides on the pulleys excess grease can get flung off while under centrifical force . John |
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Post by tvnacman on Aug 28, 2014 17:01:55 GMT -5
I have a few sets of mirrors can you post a picture of it.
John
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