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View Full Version : Viva VX250PR Start/Kill Switch Mod


john25
04-30-2008, 01:31 AM
I bought this bike for my daughter and after the first ride on it, she accidentally pushed the start button when she tried to kill the motor. I heard the starter try to start the running motor so I immediately pulled her hand off it and killed it for her. After this, the electric starter wouldn't work. I thought she killed the starter motor, so I just kickstarted it for the rest of the day.
Turns out the starter fuse was burned. After replacing the fuse, the electric starter would work. Within seconds of the motor running, the fuse would again burn out. I traced the short to the rectifier. I replaced it and now the bike seems to be fine.
In order to avoid further accidental start button pushes when the motor is running, I removed the key switch and replaced the poor excuse of a start/on-off switch with "REAL" start & kill switches on opposite sides of the bars. Here's the mod I posted on a sister Chinese bike forum: http://www.chinesemotorsport.com/forum/viewtopic.php?f=15&t=1624
I must point out that if you do this mod, you are doing it at your own risk. I am not guaranteeing that your wires will be the same colors as
mine. If you trace them correctly and have some moderate wiring/electrical skills you should be able to figure out which wires are for what, and use my posting as a guideline.

DesertDog
04-30-2008, 09:49 AM
Ok John25 nice job i must agree,
so tell me where did you get the bars from, my has that same bike and am having the same malfunctions , i will do the same to his on the start and kill switch.
but i want those bars for him,(only when he stops dumping it) tho
DD

john25
05-18-2008, 12:02 AM
I got the bars from Rocky Mountain, here's their link: http://www.rockymountainatv.com/productDetail.do?navType=type&priceRange=allPrices&navTitle=Control&webTypeId=70&webCatId=12&brandId=allBrands&prodFamilyId=12330
For the handguards, same place:
http://www.rockymountainatv.com/productDetail.do
For the Motion Pro CR throttle assy, Sunline Honda CR Clutch Lever assy, & ProGrip handgrips, I went to Chapparral: http://www.chaparral-racing.com/Chaparral/productr.asp?pf%5Fid=306%2D1053&gift=False&0=assets%2Fhtml%2Fd%5Foffroad%2Easp%2CnavId%3Dd%5F offroad%2A0%26menu%5Fid%3D%26Tree%3D%2COffroad&1=dept%2Easp%2Cdept%5Fid%3D406%26menu%5Fid%3D%26Tr ee%3D0%2COffroad%20Handlebars%2C%20Controls&2=dept%2Easp%2Cdept%5Fid%3D3602%26menu%5Fid%3D%26T ree%3D1%2COffroad%20Throttle&3=dept%2Easp%2Cdept%5Fid%3D3971%26menu%5Fid%3D%26T ree%3D2%2CThrottle%20Assemblies&HSLB=False&mscssid=008E131713F20841E9AF0FD73CB28C83
Contact me if you would like more info. 8)

DesertDog
05-19-2008, 10:01 AM
thnx for the linx there john25

i just changed out my sons handle bars , he did acouple of endos over the weekend and twisted'em bad,

picked up the bars locally here at http://www.5thgearelko.com/, a set of fly low pro steel bars black for $17.95. low pro meaning not as high as some i guess,

much wider than the china style, now it does'nt feel like my elbows are tucked into my ribs when riding.

just have to do the mods on the start/kill switches

i showed my boy those pics of your girls bike and i said to him see its clean , he said to me shes a girl ,,,,,, tipickle boy , keep it dirty ride it dirty

oh well thanx john
DD

coleary15
05-19-2008, 09:35 PM
i bought a new clutch cable....same size and everything but i cant find out how to re-route ir...which way does ir go?

DesertDog
05-19-2008, 11:52 PM
should go in front of bars down the middle , underneeth to the right,
make sure it wont touch the exhaust