[Hondaguy98]

Just put a brand new top end and carb it cranks fine but runs like shit. Any info??

 

[cmanningjr]

What do you mean by runs like $hit??

OEM carb? Or cheap China knock off??
Timing set correctly??
Valves adjusted right??
Does it idle?? Smoke?? Miss?? Skip?? Die???

Need a little more info...


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[misterclean59]

What do you mean by runs like $hit??

OEM carb? Or cheap China knock off??
Timing set correctly??
Valves adjusted right??
Does it idle?? Smoke?? Miss?? Skip?? Die???

Need a little more info...


Sent from my iPhone using Tapatalk

We need a lot more info

 

[Hondaguy98]

I'll never driving it and it sounds like its miss fireing just put a new spark plug in it and it's doing a lil better Could it be the coil. ?

 

[fishfiles]

could you have missed the timing mark when reassembling it , did you check the connecting rod to see if it was bent , did you lap the valves or at least checked them for leakage , did you get an after market carb ( which is ok in my book ) ,but have seen after market carbs that are not really for the atv it is listed for , just a universal carb ------------- I think I would start with checking the timing then a compression test

 

[SamUK]

As everybody told me, you need to eliminate every possibility one thing at a time.

Carb, is it genuine, set pilot to factory, make sure main clip is in centre.
Timing, take your time, turn it over a few times then check again.
Spark plug gap, set it, it should be close if new but set it anyway.

Don't get buying and replacing things until you've checked everything that could be a simple fix, you'll just waste your dollars.