85 YTM Tri-moto 200 wont start....need help

**shadix518** · 06-03-2009, 03:20 PM

Ok i got this 85 Tri-Moto 200 from a guy last sunday and it wasnt running. the fuel tank was not hooked up at all and the air box was disconnected from the carb. So i cleaned the tank out to make sure of nothing was in there due to it not having a gas cap. so after cleaning the tank i hooked it up to the carb gave it a few(like 20-30 pulls) nothing. pulled the carb and cleaned the bowl and tryed again and it started. It ran for about 10 sec then died while it was running it was spitting stuff out of the carb that looked like a oil and gas mix and smelled that way too. So i pulled the carb again soaked it in carb cleaner overnight. it was dirty but not the worst ive seen. i put it all back together and tryed firing it again. nothing the only thing i can get is a backfire here and there. So i got some starting fluid and tryed some of it and nothing it is getting fire. but one thing i did notice is after pulling like crazy i pulled the plug and it was dry. So i sprayed starting fluid directly in the plug hole and put the plug back in and tryed again....and the same thing NOTHING. tonight i will be puting a new plug in it and i think i may adjust the floats to make sure their not set to low. anyone else have any idea what i need to do to get this thing running??

ahh and one more thing i pulled the oil check stick and looked at it oil is clean but has a hint of gas smell to it?? bad rings??

**shadix518** · 06-03-2009, 04:42 PM

none have any ideas??

**Yamada** · 06-03-2009, 05:12 PM

Maybe if the oil smell gas, you flooded the engine. Remove the spark plug and pull the recoil several times.
Then plug the spark plug and ground the electrodes on the head. Pull the recoil and look for a blue spark at the tip of the plug. Also check if all the switvh are at the ON position.

**shadix518** · 06-03-2009, 05:19 PM

i have pulled the plug and cranked it over serveral times and it is getting good spark but the only thing is, is that the plug is dry when i pull it out after trying to start it for so long

**Lukeatc185** · 06-03-2009, 05:25 PM

check your carb boot, and the intake hole behind the boot, i had an old dirt bike stall out and not run because it was stored outside and some leafs got stuck inside and wouldint allow the mix to get through effincently so it would not fire.

**Lukeatc185** · 06-03-2009, 05:26 PM

if you have compression in the cylinder fuel/air and spark, and timing is on it should run.

**shadix518** · 06-03-2009, 05:32 PM

yea im wondering tho when i sprayed starting fluid in the plug hole it did not fire over ither

**Lukeatc185** · 06-03-2009, 05:37 PM

sounds like something to do with compression. if you had good compression and a nicely cleaned carb you would be getting a wet plug. my atc is doing the EXACT same thing. im losing compression from my valves. and i have a dry plug and it wont fire either.

**shadix518** · 06-03-2009, 05:45 PM

could it be due to the float being set to low?

**Lukeatc185** · 06-03-2009, 05:49 PM

well no, the float to low would just mean almost no fuel comming through the carb right. but if u put fuel right into the cylinder with no fire. its nothing to do with your fuel, its another issue. timing or compression id say.

**shadix518** · 06-03-2009, 05:56 PM

would it have good compression if i had it running for like 10 sec??

**Lukeatc185** · 06-03-2009, 05:58 PM

yes, but that dosent mean something didint happen in the 10 seconds that you had compression. something happend in those 10 seconds to, either mess with spark or valve timing, or compression, im not a mechanic or anything but i think others will agree, it seems like you have a bad valve or something changed in those 10 seconds.

**shadix518** · 06-03-2009, 06:01 PM

ok ill have to check the compression when i get a chance but heres a question i was thinking that mabe it isnt running due to the floats not being set right along with the air box and air filter to make the mixture correct to the button

**Vealmonkey** · 06-03-2009, 06:02 PM

If you had it running for 10 seconds, then it fired, which means you have spark. Now where did the fuel come from so when it had spark it fired? It had to come from somewhere. A spray of starting fluid doesn't last forever, maybe 5 or 10 seconds. Sounds like you have a fuel problem. Have you made sure that the air intake from the outside of the trike, throught your airfilter and into the carb is not blocked off. Also, didn't you have a thread about this yesterday?

**Lukeatc185** · 06-03-2009, 06:03 PM

mixture is set with a screw on the carb, all the mixing happends in the carb and the boot. not the air box. you should be able to run it without any air box period, if the fuel mix was incorrect, you should stil get a wet plug after a couple of pulls.

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85 YTM Tri-moto 200 wont start....need help