Search found 72 matches

by kingkongshrimp
Jun 28 2022 2:32pm
Forum: EScooter/EMotorcycle Build Threads
Topic: 1974 Vespa 125 Primavera conversion, 5kw hub motor
Replies: 26
Views: 1708

Re: 1974 Vespa 125 Primavera conversion, 5kw hub motor

I just finished my build for my 1957 Lambretta.
viewtopic.php?p=1684953#p1684953

Got lot's of help from my friends "Resistor" over at ModernVespa.
Here's his build
https://modernvespa.com/forum/topic163759?highlight=
by kingkongshrimp
May 03 2022 10:17pm
Forum: EScooters/EMotorcycles
Topic: Hammering "thunk" noise from my 10" hub motor
Replies: 16
Views: 601

Re: Hammering "thunk" noise from my 10" hub motor

If it's a tiny drive current, then the motor should be either harder to spin or easier to spin when present, than when it is not, so if you turn the bike upside down so the wheel is in the air, you can manually check the spin-resistance of wheel with throttle completely released vs just slightly tu...
by kingkongshrimp
May 03 2022 2:37am
Forum: EScooters/EMotorcycles
Topic: Hammering "thunk" noise from my 10" hub motor
Replies: 16
Views: 601

Re: Hammering "thunk" noise from my 10" hub motor

All that said: The noise sounds electromechanical, not purely mechanical. It sounds like the controller is holding a current on the stator, which is applying a force on the coils against the magnets, then when throttle is released it releases that current. If it's a tiny drive current, then the mot...
by kingkongshrimp
May 03 2022 1:53am
Forum: EScooters/EMotorcycles
Topic: Hammering "thunk" noise from my 10" hub motor
Replies: 16
Views: 601

Re: Hammering "thunk" noise from my 10" hub motor

If you take the hardware off and find any markings on it or your frame from movement, you'll know for sure. "Pretty snug" is not enough; it has to be "perfectly snug". It doesn't take much movement to cause a pretty big noise; you may not even be able to see the amount of moveme...
by kingkongshrimp
May 02 2022 11:52am
Forum: EScooters/EMotorcycles
Topic: Hammering "thunk" noise from my 10" hub motor
Replies: 16
Views: 601

Re: Hammering "thunk" noise from my 10" hub motor

spinningmagnets wrote:
Apr 29 2022 8:56am
I'm probably wrong, but...do you use two stout torque-arms?
Here's my torque arm.

I'm using the plate provided by the QS. The hub bolt sits pretty snug in it. I'm pretty sure there's no play when power is applied.
torque.jpg
torque.jpg (910.81 KiB) Viewed 327 times
torque2.jpg
torque2.jpg (873.4 KiB) Viewed 327 times
by kingkongshrimp
May 01 2022 2:41am
Forum: EScooters/EMotorcycles
Topic: Hammering "thunk" noise from my 10" hub motor
Replies: 16
Views: 601

Re: Hammering "thunk" noise from my 10" hub motor

spinningmagnets wrote:
Apr 29 2022 8:56am
I'm probably wrong, but...do you use two stout torque-arms?
Not sure what the torque-arms are but i can produce the noise on the bench.
by kingkongshrimp
Apr 28 2022 7:40pm
Forum: EScooters/EMotorcycles
Topic: Hammering "thunk" noise from my 10" hub motor
Replies: 16
Views: 601

Re: Hammering "thunk" noise from my 10" hub motor

owhite wrote:
Apr 19 2022 12:06pm
I've had problems like that from a) controller damage and b) bad phase wire connection.
How did you figure it was controller damage? Any way to test it? or did you just replaced the controller?
by kingkongshrimp
Apr 14 2022 1:26am
Forum: EScooter/EMotorcycle Build Threads
Topic: 1957 Lambretta LD 150 EV conversion
Replies: 83
Views: 5044

Re: 1957 Lambretta LD 150 EV conversion

This build is really impressive! I love it. And you make it look so easy. Did you use the Android or PC version of the Kelly programming app? It looks easy but it's not. The swing arm was easier than i thought. Since i thought it was hard, i wasted a lot of time measuring things over and over. I wa...
by kingkongshrimp
Apr 13 2022 1:00am
Forum: EScooter/EMotorcycle Build Threads
Topic: 1957 Lambretta LD 150 EV conversion
Replies: 83
Views: 5044

Re: 1957 Lambretta LD 150 EV conversion

Hallo Yes using the original font is nice. My idea for spelling includes one more "e". The unit for electric current, Ampere, should take place in the name. L AMPERE TTA I think that works too. Although in the US, we usually spell it without the extra "E". Lambretta_logo_eq2.jpg...
by kingkongshrimp
Apr 11 2022 12:25am
Forum: EScooter/EMotorcycle Build Threads
Topic: 1957 Lambretta LD 150 EV conversion
Replies: 83
Views: 5044

Re: 1957 Lambretta LD 150 EV conversion

Sorry, no build thread. I hade a workshop to lathe an adapter for the electric motor to the crankshaft. The motor is attached to an aluminiumplate wich is attached by screws from inside the crankcase. The frame was modified by removing a part of the tube, and adding some reinforcements. I have som ...
by kingkongshrimp
Apr 10 2022 2:00am
Forum: EScooters/EMotorcycles
Topic: Hammering "thunk" noise from my 10" hub motor
Replies: 16
Views: 601

Hammering "thunk" noise from my 10" hub motor

I’ve been looking all over but can’t find another behaving like mine. When i quickly twist the throttle, the noise happens just as I release the throttle. When free spinning, no noise. When very slowly release the throttle, no noise. In the below video, to prevent the scooter from lunging forward, I...
by kingkongshrimp
Apr 09 2022 11:46pm
Forum: EScooter/EMotorcycle Build Threads
Topic: 1957 Lambretta LD 150 EV conversion
Replies: 83
Views: 5044

Re: 1957 Lambretta LD 150 EV conversion

kingkongshrimp, can you tell us about that headlight? I like it! Also, did you end up using two shocks after all? I see some later pics where you have the left one off, maybe just for doing the wiring? I did found a pair of shock that fits perfectly and has the right load 400 lb each. https://www.a...
by kingkongshrimp
Apr 05 2022 1:48pm
Forum: EScooter/EMotorcycle Build Threads
Topic: 1957 Lambretta LD 150 EV conversion
Replies: 83
Views: 5044

Re: 1957 Lambretta LD 150 EV conversion

Hallo I have also made an EV-conversion of en Lambretta 150 LD -56. Removed cylinder, tank, flywheel and a lot of more parts. Then added an 5 kW/48V bruschless chinamotor in the place of the flywheel. Wow!!!! So nice to see another LD conversion. Do you have a build thread? Any more pics? I'm very ...
by kingkongshrimp
Mar 31 2022 2:05pm
Forum: EScooter/EMotorcycle Build Threads
Topic: 1957 Lambretta LD 150 EV conversion
Replies: 83
Views: 5044

Re: 1957 Lambretta LD 150 EV conversion

Keeping track of stuff. Absolutely love and relate to the practicality of this... Also, the suitcase amp/speaker in the back of that pic is completely my jam. (pun accepted) Thanks for noticing the boomcase. I like hi-fi stuff inside lo-fi environments. It has bluetooth and a USB charging station. ...
by kingkongshrimp
Mar 30 2022 9:16pm
Forum: EScooter/EMotorcycle Build Threads
Topic: 1957 Lambretta LD 150 EV conversion
Replies: 83
Views: 5044

Re: 1957 Lambretta LD 150 EV conversion

Keeping track of stuff.
specs.jpg
specs.jpg (1.78 MiB) Viewed 440 times
by kingkongshrimp
Mar 29 2022 2:45pm
Forum: EScooter/EMotorcycle Build Threads
Topic: Swing arm question
Replies: 3
Views: 360

Re: Swing arm question

Yours... very respectable for a first attempt! I'd keep a very close eye on it all the same and maybe consider some extra gusseting where the width changes, you may get flexing under breaking/power that can lead to unexpected failure at any time. A kludge that may help, use a very hard paint and it...
by kingkongshrimp
Mar 29 2022 12:58pm
Forum: EScooter/EMotorcycle Build Threads
Topic: Swing arm question
Replies: 3
Views: 360

Swing arm question

I’m pretty new at welding. I tried to make my swing arm as strong as possible. The original design was to have two shock absorber, one on each side of the arm to balance the reaction force of the shock to avoid twist and bending of the swing arm. The issue here is that with two shock absorber, there...
by kingkongshrimp
Mar 28 2022 5:08pm
Forum: EScooter/EMotorcycle Build Threads
Topic: 1957 Lambretta LD 150 EV conversion
Replies: 83
Views: 5044

Re: 1957 Lambretta LD 150 EV conversion

Headlight treatment.

With running light on.
https://youtu.be/Cbp-X2blH2I


With running light off.
headlight.jpg
headlight.jpg (1.86 MiB) Viewed 472 times
by kingkongshrimp
Mar 28 2022 5:01pm
Forum: EScooter/EMotorcycle Build Threads
Topic: 1957 Lambretta LD 150 EV conversion
Replies: 83
Views: 5044

Re: 1957 Lambretta LD 150 EV conversion

Charge port under the seat.
charge_port.jpg
charge_port.jpg (1.03 MiB) Viewed 473 times
by kingkongshrimp
Mar 28 2022 4:59pm
Forum: EScooter/EMotorcycle Build Threads
Topic: 1957 Lambretta LD 150 EV conversion
Replies: 83
Views: 5044

Re: 1957 Lambretta LD 150 EV conversion

Awesome progress, and I love the hidden switch and gauge, keeps the authentic look very well! cheers Tyler I tried to install a charge port in the old fuel petcock 10mm hole but couldn't find anything that fits. I ended up putting the lever back on. The old choke lever became my headlight switch. P...
by kingkongshrimp
Mar 28 2022 4:55pm
Forum: EScooters/EMotorcycles
Topic: Charge port advice and opinion needed.
Replies: 15
Views: 481

Re: Charge port advice and opinion needed.

Elektrosherpa wrote:
Mar 28 2022 11:39am
kingkongshrimp wrote:
Mar 25 2022 7:46pm
Thanks for the advice guys. I ended up getting an XLR and mount the port under the seat. I'm pretty happy with it.

charge_port.jpg
That will look absolutely great in side view with you sitting on it :lol:

Good imagination! :shock:
by kingkongshrimp
Mar 25 2022 7:46pm
Forum: EScooters/EMotorcycles
Topic: Charge port advice and opinion needed.
Replies: 15
Views: 481

Re: Charge port advice and opinion needed.

Thanks for the advice guys. I ended up getting an XLR and mount the port under the seat. I'm pretty happy with it.
charge_port.jpg
charge_port.jpg (1.03 MiB) Viewed 309 times
by kingkongshrimp
Mar 25 2022 7:44pm
Forum: EScooters/EMotorcycles
Topic: Charge port advice and opinion needed.
Replies: 15
Views: 481

Re: Charge port advice and opinion needed.

https://www.amazon.co.uk/gp/slredirect/picassoRedirect.html/ref=sspa_dk_detail_1?ie=UTF8&adId=A0212734BD7WKWJ3H9DS&qualifier=1648077911&id=1214070041212765&widgetName=sp_detail2&url=%2Fdp%2FB08L4B9HVY%2Fref%3Dsspa_dk_detail_1%3Fpsc%3D1p13NParams&sp_csd=d2lkZ2V0TmFtZT1zcF9kZX...
by kingkongshrimp
Mar 22 2022 12:24am
Forum: EScooters/EMotorcycles
Topic: Charge port advice and opinion needed.
Replies: 15
Views: 481

Re: Charge port advice and opinion needed.

I have a 10mm hole in my scooter that i would like to use as a charge port mount. How many amps do you want to squeeze through that hole? I roasted a couple of 5.5mm charge plugs before deciding they weren't for me. I would consider 5A to be the upper limit of how much current is reliable long term...
by kingkongshrimp
Mar 21 2022 11:53pm
Forum: EScooters/EMotorcycles
Topic: Charge port advice and opinion needed.
Replies: 15
Views: 481

Re: Charge port advice and opinion needed.

a hole pointing vertically up is asking for water to get in there and make your life miserable. something with a waterproof cap would probably be better. id also point out those connectors are rated at 50v and your charger is 72v? so.....itll will probably be fine at 72v.....but probably best not t...