Howhit 150 transmission help (also swapping with a new engine)
 

hey guys,

Im brand new here and need bigtime help for my freind.he has a crossfire 150r with a howhit 150 and it was old and wouldnt start so he just bought a short case gy6 150cc and first question, is that the correct replacement or should he have gotten the long case one I nstead? Aldo while getting the go kart ready for the new engine we had a big problem, how do you get the transmission gears out!?



Thanks!

Did you order an engine with external reverse? By the way-the spinny thing is your reverse gear!!

So the new engine doesnt need those gears in?? None of that has to go on the new drive shaft? And idk heres what he bought

http://www.amazon.com/gp/aw/d/B003YC...9486749&sr=8-2

The 150R uses an internal reverse short case GY6. You cannot move the reverse over to the new engine unless you split the cases on both enigines and swap them.

Well, he doesnt use the reverse at all and it does even have the peice that attaches on the outside to make it go into reverse.. does it even need those gears into the new one??

No you don't need the gears, the engine you've picked is a scooter motor (long shaft)- you'll have to make a sleeve (piece of pipe) to get out to the threads for the nut to work.

Wait what do you mean? What threads and what nut?? The threads on the end of the new engines drive shaft?? Sorry I dont understand this.. Is the engine going to even work for a go kart?

Yes your engine will work, and yes the threads at the end of the shaft.

What willl the pipe do? And also what gears would absolutley need to come off the old engines drive shaft? Or can we just pulll the old drive shaft out with the gears attached and switch it with the new engines drive drive?

You're going to need a sprocket-from a non reverse gy6,Call Tom @SYC (banner at the top of the page) to find out where/which one to get. I have a scooter motor on ours with the same configuration- I'll try and post a pic of it so you can see what I'm talking about.

Ok thanks for the help, hopefully the pics will help

Does this help? Sorry so dirty but we play everyday! You'll have to remove the wheel stop where the shaft comes out on the motor you're buying for the chain adjuster bolt to go in it's place.Also you'll need to do away with the kick start or relocate the exhaust mounting point.

So this isnt goibg to be a very easy install is it? We got the motor in place and everythings hooked up already, the kickstart is already gone and the exhaust in plce too

Sounds like you're doing good if it's all in place already!!!

Its all runnibg good! Its so awesome having it start in a second instead of like 1 hour.. We need a neew ignition tho so we dont need to put a screwdriver in the silenoid

Also, in your pics the sprocket is a single chain.. Our is a double chain

So does the syc guy sell double sprockets that screw into the threads at the end of the drive shaft?? Because thats what it needs right now or can my freind take the sprocket of the old engine out and weld it on this new drive shaft because he just thinks thats such a better idea

First off the ad showing your new engine doesn't have female threads at the end of the shaft, so you probably won't find the sprocket without reverse with that configuration. The sprocket you need will slide on the splines next to the case.Is the issue that the axle sprocket won't slide over to align? You can run a single chain on a double axle sprocket-Take a pic of your axle- I couldn't see it clear enough in your sideways Youtube video.

Well if you meant ad by my youtube video I posted here thats the old engine the new engine has threads at the end of the drive shaft, and what we ended up doing was take the thing that the old engines sprocket threaded into and jb welded the inside and hammered it onto the drive shaft and then it went far enough for us to put a nut at the end and it feels pretty solid so in two days when he gets back from the lake house well try it out

One more thing the new engine came with a new voltage regulator/rectifier but it wouldnt fit so we kept the old one on and after a few times starting it would make smoke, is that bad?

Eventually the sprocket is going to spin on the shaft. The engine you have uses a splined sprocket, but from looking at your pics of each engine a sprocket over the splines won't line up with your axle sprocket so some fabbing will have to be done or the easiest way but most expense will be to use an external reverse box. You can add an external rev. box cost about $200.00 plus maybe $20.00 for needed brackets. This should give you the proper line up of the 2 sprockets plus fwd. gear you can always add the shifter and cable at a later date if reverse is desired. As far as the smoke is concerned, sounds like you smoked the stator (charging system). Give me a call on Tuesday 662-301-1563 and we can discuss your options. Where are you located? and what was wrong with the old engine?
TOM

Your voltage regulator: when you say it wouldn't fit, does that mean the plugs don't match? Smoke with electrical parts is always bad!!! Unless you mean the motor is smoking and that doesn't sound good either. And as far as the ad comment - I was referring to the new engine ad that you posted and it showed a standard splined shaft with male threads at the end.
Hammering anything on the output shaft sounds bad too! Live and learn! I hope your JB weld solution holds up.- Good luck.

Yea the new voltage regulator's plug didnt match with the new one, does someone have a plug that would fit? Or can you run the engine without it? And hey I was very concerned when my dumb freind just started hammering it in but it actually feels pretty solid and the thing is he just does not want to buy anything for it... he doesnt even have an aifilter and he keeps saying " I only want the mostly needed stuff" hes not the brightest but oh well his engine his problems

And how could the strator be smoked it was the voltage regulator that made smoke

We're here to help- that being said won't make us feel sorry for your friend's "impatience" or "poor choices" when you could've asked us for some help from people who's been there and done that. We all understand finances and we're here to provide opinions/options for the most effective economical route to take. There's a reason they sent a voltage regulator so it would match the stators out-put. If your stator isn't toast it would be a miracle. Smoking electronics nearly always spells a short, with the regulator shorted out the stator is getting shorted too.The idea that an air cleaner isn't necessary is crazy- he just spent $250. on that motor and a $20. air cleaner isn't in the budget, or a $20. sprocket. Hammering on the output shaft has no doubt caused some damage- it may not show up tomorrow but it will show up. Like Tom said the sprocket is going to spin on the shaft- No air cleaner even for a short period of time around dirt spells clogged NEW carb and potentially smoking or blown-up NEW engine.I'm done busting your chop's. Post a pic of your engine wiring harness,new voltage regulator and plug end. Let's see the sprockets-engine and axle for alignment purposes.

Ive felt the same damn way about everything im just waiting until it all breaks so I can just laugh at him, and yes I tried to stop him from hammering stuff onto the drive shaft but hes too impatient and I tell him get an airfilter he always goes "no ill do it later" like an idiot but anyways ill put pics when I see it again and can take pics.. But if worst goes to worst and it breaks he says hes just going to send it all back and buy a howhit version gy6

Does this engine come with transmission fluid? We know it comes with cheap engine oil which were changing with some penzoil 10w 30 but anyways do we need to put in transmission fluid?

It should but check it don't ever assume oil weather engine or final drive has been added.
TOM

Ok thanks, welll check tommorow and try to call you in case the makeshift sprocket doesn't work

Ok so... The jb weld held for about 5 minutes.. So now his idea is to weld it on.. If that doesnt work hes sending It off

If it does not work where is he going to send it off to.
TOM

"Thank God I come from a different generation of values"
Please try to let your friend know how dumb welding the sprocket on is :banghead:
NO manufacturer is going to take it back- Not now or after he screws it up more. Just curious- What would be the reason for the return? "I'm young,dumb and impatient and it didn't come with the automatic installation feature for my particular application".
I give you credit for at least trying to get information before using poor judgement.

Gentlemen... can we have a moment of silence to say goodbye to a once perfectly good gy6. such a waste.

EHey im sorry but its not my ideas or my engine, he just has to learn ok bwcause talking honestly hasnt gotten me anywhere in stopping him from trying his dumb ideas..

And its still perfectly good he doesnt have a plug for the welder so he didnt get to try it, the drive shaft is just scuffed up now thats all

And may the Lord be with GY6
AMEN:banghead:

Okay now you guys are just being mean.. But umm, if he happened to weld the sprocket onto the weld shaft.. What might be bad about it?

Not trying to mean just stating the facts in the real world. The output transmission shaft is harden - won't be after welding, bearing & seal at the transmission end will get over heated and fail, no way to service wore out potentially wobbly sprocket- Wait that isn't an issue-it won't last that long. So far your friend has a new engine with a burnt up voltage regulator-possibly a trashed stator,possible transmission issues from hammering, no working soleniod, no air cleaner and a soon to be permanent sprocket= limited to short length of time spent having fun in the dirt.

The solenoid works but the ignition up front doesnt work so we put a peice of metal in the solienoid to start it, and I made a good airfilter for him.. It could have transmission problems now?? Ugh benji you idiot... And also what do you mean by permant sprocket?

If you gotta cut it off it's permanent.Thanks for helping him with the aircleaner!

Would a weld even hold up to the torque of the engine? And yea haha he wouldnt buy an airfilter and it scared me seeing it without one so hell I just clamped some foam onto the pipe that went to the original airfilter(which had a sock in it....) And sprayed some air filter stuff on it and its goood now with that

The weld will hold no problem assuming someone knows how to weld. It's just a terrible thing to do-especially to a new motor.We could provide options with the sprocket and axle sprocket alignment if we could see it.

Have him get an output shaft and sprocket for a Yerf or original Crossfire. He may have sprocket alignment issues and have to shim the axle sprocket, but it will be a workable solution than what he is trying. Post pictures of the regulator and stator plugs. I have connectors available.

Ive tried to stop him with this I really did... :/ hes got a one track mind and he just will not buy a sprocket.. And when I see it again I can get pictures for you guys I guess I can at least try to convince him to buy a connector.. But even that seems too hard to convince him to do

Ok we went to a motorcylcle shop and got a sprocket that worked yestarday and when we drove it it sucked... and on the cylinder head it says 50cc... Could they maybe have sent a smaller engine by accident? Also could the strator not being plugged into a voltage regulator do anything to the engine or will it just not make the lights work?

The ad definitely says GY6 150cc-Most 50cc engines have 49cm stamped on them.

Well the head says 50cc, but it runs good until a certain rpm then it sounds like the engines missing or the coil and spark plug arent working could it be a bad coil or plug or the transmission possibly damaged?

One of the other electrical genius here can probably correct me-The stator provides voltage to the regulator to run lights &charge the battery and to the CDI (black box or capacitor discharge ignition)for the coil and then to the spark plug. The CDI regulates the spark by advancing the timing through rpm range-If the stator is damaged then it's not providing the right amount of current to the CDI, thus no advancing of timing at higher rpm's.
What tooth sprocket did you get from the motorcycle shop?If it's a few teeth off then performance will change. A 50cc engine would do good to propel that buggy to 20mph. Transmission damage is usually going to have a noise associated with it.

There's a dedicated coil to power AC CDI's on the stator (Black/Red wire). The 4-pin plug does not have to be connected to have the ignition work, but the battery will not charge.

I'm afraid to ask but has he at least put fresh fuel in the tank?:suspect:

Well he's gonna buy the plug so the bigger voltage regulator will plug in and hopefully the strator is working still...the transmission should be good cuz there's no noise coming from it. I don't remember how many teeeth it was, also yes he put fresh gas in and we did a oil change. It most likely would be the coil because they all kept breaking and he's gonna get a high output coil

Along with putting a larger plug he is going to have to make sure the wiring matches or he will just burn it up again.

TOM

?? What do you mean? Were gonna get the kit off buggy depot with all the wires needed for a bigger strator to voltage regulator thing

I hate to say this- But if you got a 50cc engine when a 150cc was ordered then you actually qualify for a exchange/return. Have you'll called or contacted the supplier about the mistake? I'd start clean before buying more stuff and not duplicate the errors on a fresh 150cc.

What?
 

Sounds like an industrial accident/ train wreak. I hope this guy doesn't work on his own car.

I hate to say this but the guy they bought the motor from I found his site , he sells automotive equiptment and out of 13 reviews only one had 4 stars and like 6 give him 1 star. With his reputation and the fact that the shaft is scuffed up and the electrical is lunch I can't see him getting his money back. I tried looking at numerous pics he had of the engine but could not tell if it was the GY6 50cc or 150cc. I do know they look identicle on the 4 stroke models and are the same size. This I am certain because I have a 50cc GY6 is my invetory as well as a 150cc and the 50cc is stamped on the cylinder and head but there is also an epa compliance sticker on the side of the engine which gives you the displacement.

TOM

Ok so long time no see but im back and this engine just wasnt enough being 50cc so he wants the actual stock crossfire150r engine but he cant find one at all, could somebody who knows where to get one post a link or help us?

Send your old one to Tom and he will get running better than new.