I recently purchased a used 110 cc Chinese ATV (Terminator110) that now will not fire up. It cranks and every so often I get a good onethat sounds like it is going to start. The previous owner had it running andrecently put over $300 into it at a local garage (new battery, high altitudeidle adjustment, some new wiring etc…).

When I engage the break and hit the switch it tries to startand seems, initially, like it is soooooo close to starting up. However itnever does and after 10 to 15 minutes of trying the brand new battery needs arest. I have read a lot of posts and have tried just about everything but avalve adjustment. Here is a complete list of what I have tried.

· New Fuel
· Cleaned carb
· Seated air/fuel mix screw and opened it back upto 2 turns and ended up at 1.5 turns in attempt to richen it a little forweather and high altitude.
· Compression seems good at spark plug and exhaustpipe
· Battery charges back to about 12.75V each time Iput it back on charger or tender
· Followed suggestion from 2manyToys to adjust thejet needle in top of the carb to use the 5th slot (bottom one) with the e-pin,allowing it to let more fuel in with throttle.
· Checked for spark and best I can tell it looks fine(bright white with traces of blue…. Pretty consistently the entire time it iscranking. Should it be all blue?

The weather is awfully cold lately and we are at about7200ft. Could it just be the weather (in the single digits this week.)

 

have you tried adjusting the valves? the intake valve on these tend to tighten up and make it hard to start.

 

 

I haven't. I will need to learn how it sounds like. Thanks guys.

 

Last weekend I found that there was a big crack in the gasket between the carburetor and the intake. It looks like the last person that worked on it looks to have put some black goop on it. But I think it was sucking to much air. So I found a new gasket online and plan to mount it back on tomorrow. I sure hope that does the trick. Any bets?

 

i hope it fires right up for you

 

There was no joy in Mudville this weekend, but I haven't struck out yet. I replaced the gasket and later in mere frustration I replaced the entire carb with an identical model (other than the new one has a manual choke on the carb body instead of a cable to the handle bar.)

I still cannot get it to fire up. It just tries and tries. So I got to reading about adjusting the valves and figured out what I need to do... however, I am missing two important parts. 1.) A feeler gage that is long enough and 2.) the exact gap settings I need to set each side for this 110cc.

Other than that it actually looks pretty straight forward and painless. I have everything opened up, lined up and ready. I just need the longer feeler gage which I will pick up this week. Until then I will research the exact openings I need....Thanks everyone.

 

I tested the intake and exhaust side of the valves and found them at .004 and .006 respectively. What next? I am stumped. Still never fires. It always sounds like the next attempt is going to the be the 'one' that finally starts her.

 

have you verified if it is a fuel delivery problem? crank the quad, CONSERVATIVELY squirt a short shot of ether/starting fluid into the air filter. did it fire up and run? if so, you ain't getting gasoline to the cylinder through the carb's jets. if it doesn't fire up on ether/starting fluid, then please replace the spark plug, preferably an NGK or whatever brand you're loyal to. i know you said you had spark, but sometimes a spark plug can "test" good and once it is in the cylinder, it can ground out and not spark. recently a guy had a smiliar issue and $3 and a trip to O'Reillys later his quad was running due to a "bad" spark plug. worth a shot!

 

Thank you Jaster94!
I continue to try this but not once has it ever fired. Maybe I never mentioned this before, but if I pull the plug completely out and crank it over it doesnt sound much different. With the plug in it only sounds a slight bit closer to firing.

I have replaced the spark plug with an identical NGK plug that was originally in it. However that brings up a good question.... Could it be the wrong model NGK plug? I replaced it with an exact duplicate, NGK CR6HSA. However, I read on another thread that someone else was using a CR7HSA in their 110.

Thanks again for all the help.