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Tach Help
by: dmartin95 - Sept 12, 2014 15:04:15 GMT -5
Post by dmartin95 on Sept 12, 2014 15:04:15 GMT -5
We seem to have the same things going on with on scoots lately....  I recently purchased a Tachometer off of ebay. I think the wiring is similar to yours. Here's the instruction for hooking it up: Internal Night light, black wire(-) and red wire(+) long lines for LED light, DC 12V (These two wires go switched ignition to illuminate the gauge) Black Wire short line lock positive electrode (Positive Battery post) Green wire short line lock negative electrode (Negative Battery/frame ground) Yellow wire line contacts signal，and some models need to attach high voltage signal line  I hope this thread gets updated (could you please add pictures showing where you connected to the pick-up?).... Only thing I'm unsure of is where to hook up the yellow wire. |
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Post by dmartin95 on Sept 12, 2014 14:39:51 GMT -5
Oh yeah, and another downside is that I've never done it before. I've watched a few videos and purchased a feeler gauge, but as I've never done it yet, i'm just a bit nervous. That may sound stupid to the seasoned mechanics because the videos I've seen does seem to illustrate it's a rather mundane job, but still, I'm worried about screwing up an awesome running engine.  |
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Post by dmartin95 on Sept 12, 2014 14:21:17 GMT -5
The downside as I see it is opening the engine. Every time you open the engine, you expose it to risk... A couple of granules of sand falling into your valves could scratch up the internals... There's also a gasket there... Sometimes the gasket can be saved and reused and yes, I know you can even make a gasket....
But then it comes down to do I want to go through the work for nothing.....
What I'm really seeking to know is if there's some benefit to adjusting the valves of a perfectly fine running engine... I am not a scooter engineer and do not know if there's some benefit that I'm unaware of....
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Post by dmartin95 on Sept 12, 2014 13:42:56 GMT -5
My Bintelli Havoc is now at 1025 miles. The manual calls for the valves to be checked at 500 miles.
However, I've always gone with: "If it aint broke, don't fix it"....
My Havoc has an absolute smooth idle..... It does not rev up and down at all like some of my other scoots, it really does purr like a kitten. All the way from to take off, to long stretches at WOT, it's very smooth and I'm getting GPS speeds of 62 MPH on level terrain (I weigh 160lbs).... And it starts like a champ too! I never give it the throttle to start it, cold or hot.....
If I was having an issue like not starting when hot, or just anything indicating the valves need adjusting, well, then I would adjust them without hesitation.... But my Havoc is running so good, I'm extremely hesitant.....
So anyhow, in short, what's your thoughts on valve adjustments? Do it according to operators manual recommendations or do it according to how the engine is running?
Thanks - Dan
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Post by dmartin95 on Sept 3, 2014 10:16:20 GMT -5
Thank you!
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Post by dmartin95 on Sept 3, 2014 10:05:00 GMT -5
Here's a picture of my 150cc Bintelli Havoc:  |
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Post by dmartin95 on Sept 3, 2014 2:25:57 GMT -5
Now as far as your wife's scooter flickering indicates a poor connection or bad wire and the diagram for this scooter also says 3-phase so it should have ample charging and lighting capabilities.
I elect you. 
JR
I figured out what it was tonight (by accident at that). I was going to install a cigarette lighter port and when I looked at the battery cables, I noticed the square nut in the battery terminal that the bolt goes into was missing. The bolt was just sitting on top of the negative terminal. There was nothing securing the negative cable at all. In addition, the Positive battery screw was slightly loose. Secured the ground and positive nice and tight and the flicker is gone. In addition, the headlamp is twice as bright! |
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Post by dmartin95 on Sept 3, 2014 1:51:39 GMT -5
Dmartin95, Yours sounds like it is just running lean at Wide Open Throttle since you can back off a little on the throttle and it settles down. So turn the fuel ratio screw Counter Clockwise 1/2 turn and see if that helps. Alleyoop  I popped the seat off tonight and yanked the plug. I cross referenced my plug to pictures on web from NGK and champion and it appears to be that my plug is dry fouling indicating it is in fact running lean. Unfortunately I think I have to remove the side panel to tune the carbs air-fuel mixture per your instructions. I wish I had better access to the carb without having to remove the side panel. Anyhow, I snapped some pictures of the plug, take a look and tell me what you think:    |
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Post by dmartin95 on Sept 2, 2014 14:06:51 GMT -5
  That's a cool Trike! Quick question for ya though... Do your saddlebags rub against your panels and wear off the paint? I was considering getting some saddlebags like yours for my wife's Retro style scooter but was unsure if it would damage the paint? |
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Post by dmartin95 on Aug 27, 2014 19:15:02 GMT -5
I purchased a 150cc Bintelli Havoc and it's an amazing scooter. I am now 40 years old and have many scooters throughout my life, however Bintelli stands apart from other Chinese scooter manufacturers. It also is a ZUMA clone, but the only thing the zuma has over the Havoc is the fuel injection system. However Bentelli uses Deni carburetors which is an above average (by that I mean it's not tamper proof and is of higher quality) carb for the GY6 motors. I think you're going to love the Roketa! This is what the Bintelli Havoc looks like:  |
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Post by dmartin95 on Aug 26, 2014 23:17:02 GMT -5
Alleyoop - Thanks for the tip! I will try that first opportunity I get.
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xyshannen - The moped is in show room condition. It only has around 300 miles on it and has never seen dirt or rain. It's a very clean scooter and if there's anything impeding the Air, it would have to be the fuel petcock (I don't think mopeds have fuel pumps) itself, or a vacuum line leaking......
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Post by dmartin95 on Aug 26, 2014 15:13:55 GMT -5
Hi, New member here. Thank you all for such a wonderful site. Now for my issue. I have a 20008 150cc Lance vintage with a gy6 short case clone. Today wile driving it @ 45 mph for 5 minutes it started sputtering like it was cutting in an out. I slowed down on the side of the road and it ran fine at 30 mph for a couple of minutes then I was able to continue cruising at 45 with no problems for a few minutes. But anytime I ran it for more than 5 minutes at that speed it would start to do the same thing. Now last nite I took her out and was able to cruise at 50 for as long as I pleased with no problems. Hi, I'm a new member here also and my wife has a 150cc BMS Heritage, it looks identical to the one in your picture. Her scooter is exhibiting the same symptoms as your scooter.... Long cruises at wide open throttle causes the engine to cut out, but only momentarily... She can back off the throttle and bring it back to normal. Her scooter is in brand new condition with only 300 miles on it. Suffice to she, it does have the exhaust .  |
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Post by dmartin95 on Aug 26, 2014 15:00:53 GMT -5
Hi JR, Thanks for the informative reply. The reason that I'm making the assumption that it's a 12 pole stator isn't just a WAG ... When I was searching for specs and wiring diagrams, many sellers had the same 12 pole stator and specifically list it for the 150cc Bintelli Havoc.... But at this point, I have not verified it yet. It's a bummer no one has published the specs for these stators. I would've thought with all the people upgrading their lights to HID's (xenon gas) that someone would've thought to see how much power they have. While I don't want to upgrade my lights, I would like to add a dual port cigarette lighter to my scooter to power my GPS, an illuminated tachometer, Ride on Camera and be able to charge my phone. Most of my devices only draw about 1 amp and I will not be using more than two at a time. But even still, that's right around 25 watts and I'm not sure if the scooter has that much to spare. As far as being elected, I will take that nomination once I get time. I can test three different 150cc Models. My Bintelli Havoc, BMS Heritage and a DongFang, Sunny. I will try and get a good bench-top reading as they will be skewed in the scooter due to lights and various other components creating a draw on the stator. I've learned quite a bit about stators lately. It's funny actually, I thought they were DC generators and didn't even realize how they worked. I have a fair understanding of electrical engineering and will pick this up pretty quickly I'm thinking... As long as I have you fine folk to fall back on, that is.... But I will test these stators and publish their results. Most likely once it gets too cold to ride..... Hopefully in the mean time someone else will test and publish their scoots. It would be nice to have big database covering a wide variety scooters. |
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Post by dmartin95 on Aug 24, 2014 0:49:11 GMT -5
Even if they're not published, someone on these forums has to have thrown a multimeter or ammeter on these stators. I was really hoping someone on this forum has a BN157QMJ and ran some test on it.
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Post by dmartin95 on Aug 23, 2014 17:49:27 GMT -5
keep in mind "stators" only generate ac voltage not dc !!!! What happens after the stator is determined by external components and or wiring configurations . Hi thanks for the responses.... I did not know that Stators only generate AC electricity. I found some specs on the stator that is in the Bintelli Havoc: Znen GY6 150cc Scooter 12-coil Stator DC Current (29mm center hole diameter, 42mm diagonal bolt hole spacing)
--------------- However it does not list how many watts its capable of producing. Also, why does it say DC current if they only generate A/C? Does anyone know how many watts this 12 pole stator is rated for?  |
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