What improvements to make out of the box

[Rnroutlaw]

Hi everyone! I am just hoping for some feedback on what type of improvements I should make on my 80cc ebay kit right out of the box before I fire it up for the first time. I am hoping to make it as fast as possible after the initial break-in period and sound as fine as possible as well. Awaiting it's arrival on monday and hope to have it running by wednesday. Thanks!.......Man I am so EXCITED!!!!

[misteright1_99]

When I got mine, before I mounted it I replaced ALL the hardware, mounts, intake, exhaust, and all the cover bolts with high quality allen head bolts. Also made and replaced the intake and exhaust gaskets with gasket material from advanced auto, as well as put an oring in the carb for sealing purposes. Bought a new plug, wire and cap, also from an auto parts store. Less than 20 miles later replaced the chain and installed a spring return tensioner. Maybe overkill, but I have never been left stranded in over 1000 miles.......

[ibcnya]

Tensionor pulley is garbage, the threads on it are weak. Dax makes a good one with bearings installed into it. The bolts for the tensionor bracket are junk to. The kill switch is said to go bad quickly. The clutch handle is said to break easily. Aparently the kit supplied plug is trash, the wire can use improvement to. I replaced mine with a leftover MSD coil wire i had laying around.

My clutch handled survived a pretty hard hit last week and didnt bust it, so it could be a random thing. My tensioinor hardware was definate crap out of the box. The ends on the CDI plugs are trash too, replace those with some better ones.

[Bikeguy Joe]

http://motorbicycling.com/f30/motori...oner-1128.html

http://motorbicycling.com/f30/bicycl...-care-354.html

[Technocyclist]

don't get too excited too much...take your time...and enjoy the build...get familiar with all the parts first. Study on all the possible break points that would be crucial to your build...If your tensioner is not yet the one with the bearing then you can make the center hole bigger to fit a bearing...I used a small grinder with a power drill and installed 2 bearings, and replaced the bolts that hold it. It was pretty messy... Have all the tools and loctite ready. Take your time aligning the rear sprocket on the rear wheel to avoid any wobbling. I found this to be the most tedious and time consuming task.

Get a fuel filter, and a good fuel line, and clean out the fuel tank before installation

Hope the best to your build and that everything turns out ok. :-)

[Rnroutlaw]

Many Thanks to all of you who responded! I really appreciate the help. I am going to use as much of this advice as I can. Seems like alot more work than just throwing the kit on. This feedback is exactly what I was hoping for to be able to improve on the stock kit itself before installation. Thanks again!

[Motormac]

Do not use the supplied killswitch, just cut the wire at the switch,you can leave the red button there or remove it will not matter. Now wire up the motor black to CDI black.Use an regular ON/OFF switch from auto store or Radio Shack and mount it onto a small plastic box the same size or a bit larger than your CDI, I used a small tupperware container that I found in the kitchen. Wire the blue wire from the CDI to one side of switch and wire the motor blue wire to the other side of switch,Now drill a hole into the top of the plastic container and put your spark plug wire thru it and twist it back into the CDI. Put a thin layer of silicon around the upper edge of the CDI and also some around the sparkplug hole and mount the box on top of the CDI. you can now wrap electrical tape around the box and CDI to hold the two together or do what I did was to cut a 2 inch section of bike inner tube and stretch over the 2 sections. This will be completly waterproof and the switch is located in an easy to reach spot. I have well over a 1000 miles on my engine and never had any CDI or magneto problems.

[Andyinchville1]

For max speed you will need a smaller rear sprocket....A 34T is our best seller but depending on your terrain, altitude, weight desired cruise speeds, some have gone as small as 27T with good results....(chaing the sprocket before you put her al together saves the time and hassle later)

Hope this helps you.

Andrew

PS - A Power Pipe would be a good addition to steeper gearing too! ;-)

[Motormac]

Andrew, would a 34 tooth have a harder time going up hills than a 44 tooth? Its mostly flat where I am but there is the occasional hill and the 44 tooth just starts to bog down and slow down a lot on the steeper ones. Speed is not a concern to me but I would like the engine(2 stroke frame mount) to cruise at a comfortable 25 mph and stay in the power band. Do you recommend I stay with my 44 tooth or change to different? thanks, Mac

[Bikeguy Joe]

If your bike bogs with the 44T, it will bog more with a 34T. However, it will cruise with a much lower engine speed on the flat. You may have to pedal assist.

How about a 40T?