Chinese dirt bike VIPER 150cc - please help

[tahasyed09]

Does anyone have this bike? Heard great reviews and I ordered it! Ordered it assembled but it showed up non-assembled and the company where I ordered from just said "Sorry we missed the memo"

Anyways long story short - it wont start! Its brand new

[Bruces]

Never heard of that bike ,and they did you a favour not assembling it anyway as they never do it correctly anyhow ,or at least the vast majority don’t .
Some of these bikes the kick stand must be up ,a brake has to be held ,or other such nonsense for the bike to start ,I guess we could use some pictures of it to see what you have which might give us some more suggestions to getting it going .

[tahasyed09]

Its a kick start.. I dont think brake would do anything.. the choke is on, fuel valve is on, And the ignition switch is on too.. Idk what I maybe missing that it still doesnt want to start :(

[franque]

It could be the carb needs to be cleaned, I haven't heard of anyone buying one of these for a while. Did you drain the float bowl? What does the plug look like, and is it getting spark? Air filter cleaned? There could be a lot of factors preventing it from starting, but I'd say first step is verifying spark.

[BigFatAl]

Ha ha I just ordered one of these last night .....

[tahasyed09]

Did you get the bike already? How is it doing BigFatAl

[BigFatAl]

Originally Posted by tahasyed09

Did you get the bike already? How is it doing BigFatAl

It’s supposed to be here within the next 3 hours.

[BigFatAl]

Originally Posted by tahasyed09

Did you get the bike already? How is it doing BigFatAl

Got the bike last night,assembled it today.
The rear axle nut was tight I had to use a 26” pipe wrench with a 24” bar on it !!!,destroyed the nut but got it loose.
Mine would start at first but I held the throttle wide open and if finally started.
The carb is junk,idle is set all the way in and it will idle for 20-30 seconds then it coughs and dies.

[BigFatAl]

The bike has been ridden 3 times so far and is doing ok,stock carb sucked so I bought another and it’s better but not great.
I have a 28mm Keihn for it and I hope that fixes it.

[sams2017]

Originally Posted by franque

It could be the carb needs to be cleaned, I haven't heard of anyone buying one of these for a while. Did you drain the float bowl? What does the plug look like, and is it getting spark? Air filter cleaned? There could be a lot of factors preventing it from starting, but I'd say first step is verifying spark.

tahasyed09


Does the Viper run yet, and did you do what franque said?, we have 4 Vipers and some with over 4000 miles on the engine (if our GPS is correct) and the Vipers still run strong.