I have another thread about this atv but the answers there haven't changed the fact that it wont start up. Lynn Edwards has helped me alot on the other thread.

First things first. Its 4 stroke. Fully auto no reverse. 110cc honda clone engine. elec start.

Prior owner said it did run. He got it from a family member that died and before he could fix it his kids broke it further so I picked it up cheap for the tires for another quad that I have. I noticed it was hard to crank.

I put a new throttle cable in it (what the kids had broken), battery was dead so I jumped it off my pick up and for a brief minute it started but would not stay running. This happened three times.

I purchased a new cdi, throttle cable, magneto, voltage regulator, spark plug, ign coil, carb and handle bar switch. Put a little marvel mystery oil in thru the spark plug hole and in the oil. Still no start.

Thru my other thread and Lynn's help I discovered the new stator was trash out of the box. I swapped it for the stator on the working quad and I now have spark but still wont start.

Motor is easy to turn without the plug installed but is hard to turn on the compression stroke with the plug in. Rear axel also seems hard to spin after a few turns. Spinning the rear axel does not make the motor turn.

I checked the valves and timing and everything seems to be in proper order.

Id rather get it running than strip it for parts that my brother wants for is kids quad but I know he will never pay me for them.

PLEASE ANY SUGGESTIONS OR A DOWNLOAD ENGINE REBUILD MANUAL?

Thank you in advance any help will put a huge smile on my sons face if this thing starts up

 

Our Hanma-R9 110cc is hard to start too. Always seems to have not enough battery. I have changed the battery and it helped some. I'm not sure if it is compression or maybe a poor starter, or too small of starter wire or what. Once we get it to start it will run and start great the rest of the day. It just seems to be cold starts that it does not like.

Usually if it will not start on the fist couple of cranks I will give it a shot of starting fluid. Just a little squirt right on the air filter. That will usually make it start and run on it's own.

The problem with these small motors is that they have no neutral to put them in so that you can bring the idle up to warm the engine, and a cold engine hates to idle slow.

 

my problem is it wont start period. -10 degrees 110 degrees it wont start. it seems with these Chinese quads the whole elec harness could be made alot better and yeah i agree the starter wiring and the main ground should be made out of a thicker gauge wire.

I have spark! New carb! New CDI!

I ran the full CDI diagnostic. Discovered bad stator and replaced it. Removed the blue/white wire from CDI so all the kill switches are on override.

I crank it til im afraid im burning up the starter and nothing happens. the motor only turns easy when the spark plug is not in the motor. Without the plug installed a mouse could spin the motor by running in the flywheel. with the plug in the motor spins free until the compression stroke which is really hard to spin even with a ratchet and socket or a drill with a socket on it.

Again I dont really know the history of this thing but I have made it start twice before.

Honestly I paid 100 for this thing and originally got it for the tires for my tao tao but once it started (for a sec) ive been wanting to make this thing run.

i know these are for kids but the tao tao 110 i have is equal maybe more fun than my 170. it can drift around a dinner plate! and out run trx 90 110 and 125 off the line until im maxed out by the auto trans and the trx has a semi auto.

Anyone with a suggestion of what this could be? Is it just toast and give up? Rebuild? Buy a new motor? Set it on fire and laugh in frustration?

Again doesnt start at all and hard to crank. would love to fix it and give it to my son to make up for selling his go kart (kids dont understand money or that machines dont enjoy sitting outside full of rain water)

 

Does the starter motor crank the engine fast enough it should start? I'm assuming it drags a bit but is it spinning fast enough that it should start? Does jumping it off the truck help it spin fast enough to start? If you don't think its fast enough or it starts when jumped then you have more electrical gremlins to trace. If it does spin fast enough then check the compression. If that is good its probably in the new carb. Is the plug wet when you remove it after trying to start the bike? If no hook up the fuel line and turn on the fuel. Loosten the drain screw you should have a stream of fuel. Do you? If no pop the bowl off and see if it has some sort of packaging holding the float closed. If you do have a stream of fuel dose it with starting fluid as mentioned above Did it fire off (may only run a second)? Also try pulling the air cleaner off and choking carb with your hand. Careful though sometimes they back fire on your hand. If either of these 2 fired it off adjust the carb there is a sticky at the top

 

of the chinese quad general forum that will walk you step br step.

 

It wouldnt start with a liberal shot of starter fluid. But after further investigation I looked into the timing of the motor. once i pulled the cover off the jug i noticed the cam markings line up but the timing marker is not visable thru the hole in the top of the stator cover.
The starter does spin faster with the help of a jump pack, battery charger with jump start setting or my pick up.
I need the breakdown of how to adjust the timing so the marks line up and then adjust the valves since i messed with them like a moron without a feeler gauge to make sure they are set right.
I believe some where in this quads life somehow the timing got messed up either from me tinkering with it or the prior owner tinkering with it and if I straighten these out i hope the motor will spin properly. I think all the issues stem from this. If the timing isnt right and the valves are not opening at the right time then it should be having this issue?

 

It does seem a bit odd.

Yes if the valve timing is off it will throw everthing off. It is strange though that you have a compression stroke and it will not fire if you have spark. I would think you would get some kind of fire with the starting fluid.

I would check the timing, set it if off, and then verify that the valves are actually working properly.

 

I found this. It might help you with your valve timing.

 

Thanks for the vid link i was searching youtube for that video but couldnt find it. adjusting the timing seems to be easy enuf now i just need to find a feeler gauge to adjust the valves themselves after I do the cam timing.

This has been really frustrating just cause half my brain says hey jerk you bought this for parts sell half to your brother and walk away. The other half says you can fix it and then jump it!

 

I know what you mean. If you can get it fixed it is a hundered bucks well spent. If you can not get it fixed, hey it was only a hundred bucks. It does not hurt to try and you are learning something at the same time.

I ride my kids Hanma 110cc quite often because it is so fun to drive. Just don't have as much fun as these guys....