MOPED ARMY

dont bother getting the 60cc. it makes very little difference, and you would be wasting your money. Either get the 70cc, or leave your moped alone. I have a bore kit, and have had a couple problems, but the performance is worth it

i blew a main seal in my trans mission, which cost me a pretty penny to fix. Also, BE ABSOLUTELY SURE THE EXAUHST IS NOT LEAKING!!!!! otherwise the moped will run rough at top speeds, and you wont get the maxiumum performance out of it. I have the 27 tooth sprocket on mine right not, and can get the needle to back around to zero. i know that shifting often takes a second or two with tomos mopeds, and with the bore kit, it shifts in about half a second. I lost the aiffilter to my amal carb. I put a valve cover airfilter from pepboys on my carb instead, which provided better flow, but it did get in the way of the peddles, so i could peddle it, only kick it back to start it. However, it does look really cool. ill try to get pics of it. If you go to pep boys, they should have it, but youll have to enlarge the hole to fit it on the carb. i sincerely think that the performance i get from the kit is worth the little problems!

the main seal i beleive is what keeps the transmission oil from leaking into the crankcase. it was so much the seal, but the labor costs which was a lot. I consider myself highly skillled when it comes to working on mopeds, but i did not know where to get transmission parts, and i wasnt about to fool around with it, because there were so many little broken parts in it when i took it apart. The kit also managed to completely tear up my clutch pads. I t was proabaly only $50 in parts. The labor costs where close to $225. I probably should have just done it myself. I weled my pipe cause that clamp does jack shit. You can use a special steel epoxy that you can get at any hardware store. It is like a clay that you smoosh up, and when it dries, it is (suppossedly) as hard, and heat resistent as steal. Works great for me so far on other parts of my ped.I dont think the kit could do anything to the studs. The most costly thing that can happen is tearing up the cylinder head, by not breaking in the kit properly, and not using a high quality 2-stroke oil.

Joel,

The break in period is to give the newly machined parts a chance to get to know each other better.

The finish on the machined parts has peaks which actually touch each other through the oil film when the parts are new. By running the machine gently, you allow these intefering parts to polish each other off slowly without generating enough heat to cause galling of the sufaces or even worse, seizing up.

The accepted norm for running in is to do everything gently. Never "lug" at low rpm and do not maintain high rpm for long periods. It is good to rev occasionally to "stretch" the internals so that you do not create wear ridges at the limits of travel which you will find, disastrously, when you do wind it up after the run in period.

On 4 cycles, dyno oil is usually recommended for running in, as synthetic is so good it keeps the rings from seating. I would assume this is the same for a two cycle.

The deposits on the cylinder and head are just byproducts of combustion and are irrelevant until they get too heavy, then you have to pull the head and clean them off.

Hope this helps,

Ron

Joel,

Read my post again, slowly and carefully.

I sugested NOT using synthetic for the run-in period.

I also described galling of metal and siezing as possible results of not running in correctly. Some would describe this as "blowing the piston" I suppose.

In addition, when you first get it running, warm it up then ride it for a minute or two, then check the spark plug for a light brown color. If the color is any lighter than that, don't ride until you increase the main jet, a lean mixture will make the engine run hot enough to seize and/or hole the piston.

Ron

I would like to hear from people who have 60cc kits about how they are working for them, like an estimate on how long it takes to get to 35 mph and what their top speed is and if they have had any problems. Thanks.