Scooter Gears

7 Responses to “Scooter upgrade?”

1. Nate
   November 11th, 2008 at 9:27 pm

   running shoes

   testicles

   a whooptie

   … I could go on.

2. bill b
   November 12th, 2008 at 5:47 am

   I think if it is 70HP it qualifies as a motorcycle.

3. Philip P
   November 13th, 2008 at 9:26 am

   If its a 4 stroke you only need to put oil in the engine and a semi synthetic motorcycle oil of 10W40 should do. THe hand book will tell you where to top it up from but if it is new it won’t need a lot.
   DON’T put oil in the fuel..
   I doubt if there are any upgrades for this..
   Are you sure it is 70 HP even the big 650cc AN burgman isn’t that powerful

4. csburridge
   November 14th, 2008 at 9:00 pm

   O.K., I found your Motorstar scooter on the net. However, I did not find much information on or about the model Jazz 70-II. You had me going with the 70hp.

   1)
   If this bike indeed has a 4-stoke engine, then you use an oil like 10W-40, and it goes in the engine. You check the level either by sight glass or dipsick.

   2)
   Many 50cc and less scooters/mopeds have restrictions to reduce top speed. Such restrictions can be found on the variator, in the exhaust system, or the fuel delievery system.
   I would recommend removing any such restrictions before you start spending money on hot rod parts for your scooter.
   Once this is done, you may find that you bike goes fast enough.

   However, on the off chance that the “70″ in the model name means 70cc(because it does not mean hoursepower), then you most likely don’t have to worry about restrictions.

   3)
   Pull the speedometer cable off of the back of the speedometer and turn the front wheel. If the little piece of metal turns in the cable, replace the speedometer unit on the handlebars. If the little piece of metal does not turn, replace the speedometer cable. Sometimes the problem is in the hub. A plastic gear can break in there, but most of the time it is just a snapped cable.

   Fuel gauges usually have problems of an electical type. Check and make sure all of the connections are good on the tank, on the gauge, and eveywhere in between. Most of the time you will find an odball wire that has come loose, and that will be the problem.

   Finding parts for the bike may be difficult to find. I found a link listed below for your bike, but nothing on parts. Support may be hard to come by if you did not buy from a local dealer.
   Good luck
   Ride Safe

5. Blitzpup
   November 15th, 2008 at 8:13 pm

   has parts for just about any scooter made, so parts are rarely a problem. Your scooter probably has an engine known as a QMB139, it is the most common design for 50cc scooters by far. It is a ‘knock off’ of the original Honda 50cc motors engineered in the ’60s. Parts are plentiful and the replacement parts are many times better than the originals.
   is a great site for scooter info, go to the forum and ask any questions you might have, someone on there will be able to help you out!

6. Shelley O
   November 17th, 2008 at 11:06 pm

   Looks like a typo… 70 HP? or 70cc. If it is a 4 stroke, then you don’t put oil in your gas. 10w 40, 5w 40, etc. – look it up.

   Changing the muffler often does wonders to the power of a scooter. So does getting a different carb. Your local shop can help you there or call around.

   Check the cable on your speedo before diving into sensors. Is it really connected? A lot of times its the simple solution that is overlooked.

7. Ferdinando
   November 21st, 2008 at 5:34 am

   what a fag 70 hp it’s a motorcycle but he is right I wish we had our own section