Main jet Derbi Senda from 2018?
Does anyone know which HD fits a Derbi Senda from 2018? Is it one with an M5 thread or something? Does it fit? Thank you in advance
Scooter turns off when suddenly accelerating to full throttle?
Hello everyone I have a problem with my newly purchased scooter that it cuts out when I suddenly accelerate to full speed (even when it's jacked up and the wheels are free to move). If it is turned slowly, everything is fine and all load cycles can be run. It is a 50cc 4-stroke DIY…
Is the spark plug too lean?
I'm currently tuning the carburetor on a 2-stroke scooter and after the first test drive the spark plug looks like the one in the picture and I'm not entirely sure whether it's too lean because it's not white and it's not fawn-brown or black either.
Moped stutters when starting and while driving?
Hello, I drive an Alpha Motors Speedstar F1. It's a direct-injection, 4-stroke engine. Recently, the moped has been sputtering when starting off. As if it's not getting enough gas or something. It has to roll properly first, and then it'll move. When driving, he occasionally has glitch attacks that get worse and longer. I thought…
Simson S51 only runs 40-50?
Hi, I got my driver's license today and wanted to drive off, but then noticed that I can go up to 40 km/h in second gear, but in third it only goes very slowly to 46-49, and in fourth it doesn't work at all. I then screwed on the spark plug and it was completely…
Do you have to change the nozzle after changing the diaphragm block?
Hello, I'm thinking about buying a new carbon membrane block and now I'm wondering whether I need to adjust my nozzle accordingly after the change? LG
Beta RR main jet?
Hi, I installed a 150cc cylinder in my Beta RR. I had already installed a sports air filter and performance manifold, and therefore installed a 130mm main jet. Now my question is: should I increase the jet size again to 135 or 140mm due to the cylinder. thank you in advance
Is this carburetor good for my scooter?
Hello, I have the JJ50QT-17B scooter (2-stroke 50ccm) and I need a new carburetor for the scooter. I don't have the old one anymore, but now I have only found this one that seems to fit, it is this one: https://www.ebay.de/itm/261335425234?mkcid=16&mkevt=1&mkrid=707-127634-2357-0&ssspo=Gaf0GeoUSdi&sssrc=4429486&ssuid=lg8mncyosuc&var=&widget_ver=artemis&media=COPY Can it be any good if it's so cheap or what's the catch? Can…
Opinion on the candle picture?
Moin moin 🙂 I would like your opinion on the candle picture. The question is very stark in the picture, it is more dark grey/brown Dellorto PHVA 17.5 Throttled nozzle assembly Original equipment Ori: Main jet: 53 is installed a 56) Auxiliary nozzle: 32 Needle: A 22, 2nd notch from the top Slider: 30
Which nozzle Puch Maxi?
Hello everyone I am looking for the right carburetor jet for my puch maxi n e 50 engine Cylinder 44mm 65cc carburetor 15 mm exhaust 22mm Best regards and thanks in advance
Moped no longer responds to the accelerator after a short ride?
Hi, I recently fitted my Piaggio Ciao with a tuning air filter and exhaust and now I don't know which jet size to use, so I've tried almost all sizes from 50 to 60 (I had a 49 before). Most of them ran well, but after about 3-5 minutes of driving, it didn't really respond…
Scooter 2 stroke mixture?
Hi, when I adjust the fuel mixture on my scooter so that it runs smoothly, the spark plug turns pretty black. But if I then lean the mixture, it stalls at 2/3 of the throttle to full throttle. However, if I pull the throttle slowly and it builds up speed, I can eventually easily pull…