Hello everyone! Im new and could really use alittle help lol

[anickode]

Ok i see im out in my garage playing with it thanks! And sorry for all the questions which im sure are really stupid to some of u guys but i just want to make sure i do thia right lol any imput on the othwr questions? Im about to buy the torque converter just want to see what u guys think about that q and what u get with it? Lol and also when im driving my kart it seems to be "jerking" alot .. Ill be going and then itll will stop my acceleration and slow me down but im only going about 8 to 12 mph at that point? Is that the bigger sprocket? Like always thabk you guys sooo much u dont even understand!

Got enough oil in the engine?

Is the carb clean?

Is your spark plugs wire on tight?

Is your kill switch shorting out?

Your description is a bit vague, but it sounds a bit like your engine is cutting out momentarily. Maybe there's some crap stuck in the float valve... The bowl drains running wide open, engine sputters, gives the fuel level time to catch up...

 

[bob58o]

The TC I linked comes with both the 10T #41 and the 12T #35
"3/4" Torque Converter Kit

For Go Karts

Includes 2 sprockets



1x 12 Tooth Sprocket for #35 chain

1x 10 Tooth Sprocket for #40/41 chain

This kit comes with a 6" Driven Clutch."

 

[bob58o]

If you google "5/8" 8T #41 Jackshaft sprocket"....
You should find this.....
http://www.bmikarts.com/41-Sprocket-with-58-Bore-B-Type_p_1050.html

It is a B type instead of the C type that comes with the kit, but it will still work. Google b style sprockets vs c style sprockets. I think I may of had to make some minor modifications to get the sprocket to fit/allign correctly, but I don't remember what off the top of my head.

The 9T might work too, but I think you'll want the low end the 8T offers, even if you don't know it yet. LOL I tell everyone to get the 8T sprocket.

 

[Garyquick]

Got enough oil in the engine?

Is the carb clean?

Is your spark plugs wire on tight?

Is your kill switch shorting out?

Your description is a bit vague, but it sounds a bit like your engine is cutting out momentarily. Maybe there's some crap stuck in the float valve... The bowl drains running wide open, engine sputters, gives the fuel level time to catch up...

I couldnt find anythinf in or around the carb. The oil lecel is right about at the top ... Spark plug seems to be on good and tight but do u mean the stock kill switch or the 1 i installed or both? I soldered in the 1 i installed and grounded it to the frame but how do i find out if its shorting out? Ill try to take a good video and post it so u can see and hear what i mean to

---------- Post added at 05:45 AM ---------- Previous post was at 05:32 AM ----------

The TC I linked comes with both the 10T #41 and the 12T #35
"3/4" Torque Converter Kit

For Go Karts

Includes 2 sprockets



1x 12 Tooth Sprocket for #35 chain

1x 10 Tooth Sprocket for #40/41 chain

This kit comes with a 6" Driven Clutch."

Thanks i just ordered it! Im really hopeing i can find out whats going on with the motor thol lol and your have any certain site you would order that 8th from? And im dedd going to go with that 1 cause im sure u know what ur talking about and i teust ya when u say thats what i want even if i sont know it yet! Haha

---------- Post added at 05:52 AM ---------- Previous post was at 05:45 AM ----------

Try putting the rear up on blocks and hand turning the tires. Everything should spin freely. See if your binding issue is there. While your doing this you can also check the brakes. Do they want to bind? They should operate smoothly.
While you have the blocks out check the front tires too. Again free spinning is key.

Ok thanks! Ill check that after work! I wish i knew how to describe it better.. Ill start going pick up alittle bit around 8 to 12 mph about then my kart will jerk some and slow back down and it keeps doing that repeatedly ill try to have my gf take a video with me riding it down my st then a video of me driving it so maybe it will help u guys see what im trying to say lol

 

[anickode]

Properly cleaning a carburetor requires removing and disassembling it, pulling the Jets, and giving everything a thorough cleaning with carb cleaner. It could have varnish or gunk inside the bowl or passages.

 

[bob58o]

Thanks i just ordered it! Im really hopeing i can find out whats going on with the motor thol lol and your have any certain site you would order that 8th from? And im dedd going to go with that 1 cause im sure u know what ur talking about and i teust ya when u say thats what i want even if i sont know it yet! Haha

I think I only found it at BMI karts, but any 5/8" #41 8T "B" or "C" style sprocket should work. I linked it in the post above.

---------- Post added at 07:45 AM ---------- Previous post was at 07:38 AM ----------

Lol and that 8th # 41 sprocket would replace this sprocket in the second picture?

Well the 8T replaces the 12T that connects to the rear 54T sprocket.
The sprocket in the 2nd pic gets replaced by the TC driven unit.
The clutch on the crankshaft gets replaced by the TC driver unit.

---------- Post added at 07:48 AM ---------- Previous post was at 07:45 AM ----------

And the whole shaft/bearings/bearing holder that you have now also gets replaced by the backplate, bearings, shaft that comes with the TC kit.

 

[Garyquick]

Properly cleaning a carburetor requires removing and disassembling it, pulling the Jets, and giving everything a thorough cleaning with carb cleaner. It could have varnish or gunk inside the bowl or passages.

But could that happen to a carb that fast? I only drove it 3 times for about 15 to 20 min each time?

---------- Post added at 03:37 PM ---------- Previous post was at 03:33 PM ----------

I think I only found it at BMI karts, but any 5/8" #41 8T "B" or "C" style sprocket should work. I linked it in the post above.

---------- Post added at 07:45 AM ---------- Previous post was at 07:38 AM ----------

Lol and that 8th # 41 sprocket would replace this sprocket in the second picture?

Well the 8T replaces the 12T that connects to the rear 54T sprocket.
The sprocket in the 2nd pic gets replaced by the TC driven unit.
The clutch on the crankshaft gets replaced by the TC driver unit.

---------- Post added at 07:48 AM ---------- Previous post was at 07:45 AM ----------

And the whole shaft/bearings/bearing holder that you have now also gets replaced by the backplate, bearings, shaft that comes with the TC kit.

Ok i ordered that tc tht u sent a pic of and im about to order that 8th sprocket as well.. And i was thinking could it be the gearing that is making my kart jerk and not reach past 14 mph? Thats the highest speed i got it to.. From that math that was done in a previous post and saying how 13 mph wasnt surprising because of my gearing/sprocket size? But im out here now looking at fuel line and my spark plug looks good to but ill probably go gwt a new 1 and replace it that i know is gapped right just incase

 

[Garyquick]

Got enough oil in the engine?

Is the carb clean?

Is your spark plugs wire on tight?

Is your kill switch shorting out?

Your description is a bit vague, but it sounds a bit like your engine is cutting out momentarily. Maybe there's some crap stuck in the float valve... The bowl drains running wide open, engine sputters, gives the fuel level time to catch up...

I tried to take a video but the sound is ****** but its like when i hit the gas i accelerate Ofcourse but when i start to go my kart jerks and slows down like bursts kinda and maybe like a car when it downshifts almost

 

[anickode]

Yes, it could. These aren't formula one engines that are assembled in a HEPA filtered positive pressure clean room. A speck of dirt in the bowl from the factory, a bit of rubber from a fuel line that was forced on a bit crooked, a can of gas that was sitting in the shed for a couple months... It doesn't take much to bugger up a little tiny carburetor. Could also be a wonky oil level switch. These are $100 Chinese engines after all.

You could have something misaligned and binding too. Best not to rule anything out till you've actually ruled it out.

 

[Garyquick]

Yes, it could. These aren't formula one engines that are assembled in a HEPA filtered positive pressure clean room. A speck of dirt in the bowl from the factory, a bit of rubber from a fuel line that was forced on a bit crooked, a can of gas that was sitting in the shed for a couple months... It doesn't take much to bugger up a little tiny carburetor. Could also be a wonky oil level switch. These are $100 Chinese engines after all.

You could have something misaligned and binding too. Best not to rule anything out till you've actually ruled it out.

Yea i see what you are saying and thank u for your help i really appreciate it!! I just wish i had more knowledge lol im teying and learning more everyday and just cant wait till i get her running 100% ill be very happy getting my kart to 40 mph and running good lol

---------- Post added at 05:12 PM ---------- Previous post was at 05:11 PM ----------

I took off the oil level sensor to.. Watched a video and read up about it but i make sure i have enoigh oil that comes up to the stick before i turn it on

---------- Post added at 05:59 PM ---------- Previous post was at 05:12 PM ----------

And i just ordered the 8 th sprocket so that and the torque converter will be here in about a week it says so hopefully ill get this running smoothly by then lol

 

[Garyquick]

But i been thinking how someone said 13 mph wasnt surprising cause of my gear ratio.. U guys think my gear ratio could be hols my acceleration back and causing a bit of jerking and slowing me down like that?

 

[Hellion]

But i been thinking how someone said 13 mph wasnt surprising cause of my gear ratio.. U guys think my gear ratio could be hols my acceleration back and causing a bit of jerking and slowing me down like that?

The guy that said that isn't some lone wolf in the wilderness doing his own thing and/or a troll providing misinformation.
He's in lock-step with reality.

It could be me, but this is the first time I've read anything about "jerking"...but these little hobby machines of ours are hardly what I would call smooth and refined.

 

[Garyquick]

The guy that said that isn't some lone wolf in the wilderness doing his own thing and/or a troll providing misinformation.
He's in lock-step with reality.

It could be me, but this is the first time I've read anything about "jerking"...but these little hobby machines of ours are hardly what I would call smooth and refined.

Its kinda like bursts.. I accelerate start going then its like a car downshifting.. And it slows down and repeats whrn i accelerate.. II was thinking since with my gear ratio and 13 mph isnt surprising maybe im just hitrin my top speed available with my gear ratio and once i get the tc on there with the 8th sprocket maybe ill be able to hit 30 mph in my kart without the bursts and the slow down? Of that makes sense? Lol i got my kart to 14/15 mph yesturday but its like that the top speed and it wont let me go any faster then that period so i was just thinking about how that guy said about the gear ratio

 

[bob58o]

Top speed is simple math.
Tires have 18" Diameter.
18 inches / (12 inches / foot) = 1.5 ft.
That is a 1.50 Ft Diameter.
Circumference = (Diameter * 3.14159).
1.5' * 3.14159 = 4.71 Ft
That is a 4.71' circumference. Everytime your axle spins 1 revolution, your kart moves 4.71'.

You have a 13.5 : 1 Gear ratio. That means every time your engine spins 13.5 Revolutions, your axle spins once.

Your engine is governed to 3600 RPM. With the 13.5 : 1 Gear Ratio, your axle is governed to 266.7 RPM.
(3600 engine Rev / min) / (13.5 engine Rev / Axle Rev) = 266.7 Axle Rev / Min

266.7 axle RPM using tires with a 4.71' circumference means...
(266.7 Axle Revolutions / min) * (4.71 Ft / Axle Revolution) =

1,256 Feet / Min

(1,256 Feet / Min) * (60 Min / Hr) =

75,360 Ft / Hr

(75,360 Ft / Hr) / (5,280 Ft / Mile) =

14.3 Miles / Hr


Once you hit 14.3 mph, you have reached 3600 RPM. At this point and time, Arnold Schwarzenegger the Governator comes in and says No, No, No... Not In Dikembe's House. And like Cory Crawford, he slams the door (throttle butterfly) shut (or closes it slightly) leaving just enough room for some air or glove side wrist shots that shouldn't get through but still manage to find the back of the net). lol Nvrmnd

Is your issue governor related??? Is the throttle linkage nice or is there a lot of slop? Hmmm, I dunno.

I dunno whats going on, but if the gearing is bad, the TC and 8T sprocket should fix that. If the clutch is bad... The TC should fix that too. If something with the engine is wonky, the TC will not help. Rev the engine with chains off and see how it behaves with no load.

 

[anickode]

But i been thinking how someone said 13 mph wasnt surprising cause of my gear ratio.. U guys think my gear ratio could be hols my acceleration back and causing a bit of jerking and slowing me down like that?

A bigger gear ratio will give you BETTER acceleration, but your engine could be getting up to speed so quick it's "bouncing" off the governor.

 

[Garyquick]

Math qas my worse subject hahha but thanks so much guys without you guys id be extremely lost! But i loved how u threw arnold in there haha and thats what i was thinking to cause i would have incredible acceleration at 1st then just a real fast slow down but do u guys have your governers out ?? Im alittle concerned about trying to do that as u can tell im still learning lol but i took off the sprockets and clutch cause i wanted to have it painted by the time my tc and 8 th sprocket got here but having alitrle trouble gettin the clutch off lol

 

[Garyquick]

And what the **** is this? Is was right behind the sprocket on the jack shaft like the 2nd pic? Lol

 

[Garyquick]

And now im having real issues gettin this max torque clutch off lol i got the 2 little side allen screws out but it just doesnt want to budge lol

 

[mckutzy]

Well your going to have to be carefull... Might need a new sharp Allen key or a sacrificial torx bit hammered in(I find that helps sometimes...).

Your lucky having it inboard, as you have space to see and work with... The reverse... Might lend yourself to loosing your cool and chucking the darn thing across the shop a few times, ending up happily putting it down with a stout load of triple-ought to the crank case....

(No.. That didnt happen to me... I was out that day, the gunshop is fare ways away for a reload)

 

[Garyquick]

I got thw 2 small bolts out with the allen key? And im waiting on that 8th sprocket but was wondering if there was a way to change the 54th sprocket to get more clearance when im driving under my kart or would making that sprocket smaller reduce my speed?