atc70

[Youngrasher]

I've got myself an atc70 today and already i've got problems, it starts fine and rides ok but when i'm at full throttle it misses like mad if I back the throttle of a tiny little bit it runs fine, it wasn't doing this when i first started riding and it did clear itself at one point but it came back. i'm going to clean the carb tomorrow but i just wanted to tell you all about it incase you think its something else. thanks.

[james9r9r]

Well My atc 70 ran bad!!! until I regapped the points.

[Hair Bear Bunch]

I would go the clean carb way first. One thing I don't know, but someone else might, is if they were fitted with a rev limiter.
The easy way of course is don't go flat out!
Rob.

[atctim]

Sounds like gunk in your carb - take it off - clean it like it depended on your life using compressed air and carb cleaner - re-assemble - re-install - check back in with us.

[TravEX]

No rev limiter.

Sounds like time to set the points gap.

T

[james9r9r]

Yea I had to gap mine and then it ran great!!!

[RedRider_AK]

Might be crap in your main jet, or like everyone else said, it's the points.

[deep purple]

I would start with the easy first then go from there.I would replace the spark plug.This is always a good idea anyway when you get a new machine.Then if still the same check plug lead,points etc.Good luck:beer

[Youngrasher]

I've changed the plug and cleaned the carb and she runs like a dream, does anyone know what the pionts gap should be for future reference. thanks for your help guys.