The UK's biggest automatic scooter forum.
Separate names with a comma.
I have a speedfight 50 that runs a cheap 70cc kit and I fitted a second hand Endy exhaust. I only upjetted about 10% and went from 9 gram stock...
You may need the shorter reach plug for the 70, let us know how you get on.
Does it turn over on the electric start? If it turns then I would check to see if you have a spark. Is there fuel getting to the carb, double...
You really need a socket set to reach down below the fins on the head WD will help but they shouldn't be all that tight to be honest. When you...
I did mine about 3 weeks ago and it was dead easy, just be careful with the new rings they are quite brittle. I didn't take my engine out and it...
Cost £105 Company Devitt Cover fully comp Location Huddersfield Bike Speedfight 50 AC 2003 Age 50+ No claims 1 year Driving years 38
Thanks for that. I think I am begining to figure out what I need. I now have 8g rollers in and it picks up pretty well, just slight bogging at...
Now that I have the 70 kit on would a speedo clock from a 100 fit and give me a more accurate reading as it goes to over 50mph? I've seen one for...
Thanks Mr Bizzle, I will run it on the pump and see how it fairs. So far it seems to be great. :)
Just one question, should I rely on the auto oil pump or should I use premix? Thanks
Finally got round to fitting the 70 kit today, all went well. Have fitted the Endy exhaust and 6.6 gram rollers. Carb is jetted with a 74 main and...
Hi and thanks, I don't want to run premix and the pump together so would like to disable the pump if possible. I have the original contra spring...
Also thinking of using premix but what ratio for a 70 and also how do I disable the oil pump? (it is not a cable pump)
Hi, its a Parmakit sport 70 from PSN. I also bought an exhaust from ebay, its an Endy and I know a lot of people don't rate them but for 30 quid...
Right, ordered a 70 kit. No idea what it is but it was cheapish. should be here on Tuesday. lets see how we go.
Done compression test and comes out at 115 PSI so not too bad. Put in a 74 jet and was a bit better, 33 downhill at full throttle, same as before...
Thanks, I will put the original one back in and get some 5g weights to try. Still have the problem of bogging, but only when it reaches 22ish, it...
OK, jets arrived today and I upped it from 72 to 78, zilch. Think that blows my theory. I can only think now that it is either low compression...
Thanks for the explanation. Well, I put in the 6g rollers and got a slight improvement. Still not enough to take it to 30 but a clock speed of...
Thanks Mr Bizzle, I would have thought that more than 20 MPH was easily obtainable even with 8gram rollers but struggling to even get off the...
