Carb Tuning | Troubleshoot | Why Won't My Motorized Bike Start?
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- Опубліковано 28 вер 2021
- Finally got my bike started but it doesn't run well. Started with a 65 jet with clip in the middle. Moved the clip from the center to the bottom and it started, but runs poorly. Help me diagnose the problem.
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Late to the party but if anyone has this issue; make sure the magneto is not backwards. Magneto that is level with the coil, the key slot should be 1 o clock for top dead center.
turns out the major problem was I had not removed the screw on cap from the spark plug (never knew it was a thing).. anyway.did it.. set carb as best I could and off we went.. fired up loverly,idled a bit fast,soon sorted that and now ticks along nicely.. a good day.. many thanks and good karma to you sir.. regards Paul
Glad to hear you got it running. I have a very slow-healing shoulder injury and have not been able to move my bike up and down the steps to go for a ride. It's slowly getting better. I love the autumn time but am hoping to get a ride or two in before then.
Is this really true?? I have issues with bogging and about to take the whole engine apart if I half to and trace the issue down. It runs and drives but nt carb sucks for me and for a 66cc it is so gutless. I got a new hp clone off of Amazon and it runs and idles so good but as soon as I take off and start to give it gas it's just so gutless it isn't even funny. I had to put old nt carb back on n in back to the horid idling and no bottom end or really alot of top end. It goes max down hill 28mph. I'm going to figure out this new hp carb and get it properly working will pry change het size to c if that helps any. I got the bike a second hand from a relative had bee sitting outside for 8 mo tha I had it running and cruising around an hour later lol. It does need some new gaskets on engine I know that because black oil drips into the case where the magneto is and that gets wet so wonder if that could b part of issue. I'm wondering maybe I have a shit piston too so I'm taking all apart replacing gaskets at the least and checking for any internal damage and I'm going to port it at that time as well while it's already opened up. Going to c if any of that works and if not I'm giving the bike away because I have no business having it at that point if it still does t work properly for me lol
@@svensplooge9961 did you ever figure out the issue?
Has to be the magneto coil spark plug or the CDI. Same thing happened to me it was mind boggling but I changed those three and I can now turn the bike on by simply spinning the rear wheel from a stand
When I pulled the plug on my motorized, I discovered a shiny black substance on only one side. They painted it at the factory! I am fighting lazy manufacturing!
D'oh!
@Chuck Haney 🤔 Where To Purchase a Pair of Those Handle Bars ?
They are "Jones SG Loop Bars" I bought mine online somewhere, not sure anymore.
Anything you need to know about how to properly tune your carb follow the instructions you will have zero trouble as long as it's a motorcycle style carb
is it one of those after market carb wit a 65 jet ? it works better if you switch the stock jet from the nt carb that comes with the kit,i had the same problem starting
No it's the carb that came with the kit.
@@ChuckHaney i tried the 65 on the stock carb too ,didnt work also. i've had so many problems with stock carb.my buddy runs all his bike with stock an hadnt had a problem. did you get your problem solved?
@@ec5423 I'm still working on it. I did change to 72 jet after trying the 70 jet and now it starts every time and with relative ease. I still have to check my crank seals for an air leak but the 72 jet is an improvement so far. I'm making a new extended intake that I have high hopes for so I should have a video on that in a few days.
@@ec5423 I made a new extended intake. Problem solved. I'm back to using a 70 jet (down from 72) and I've tried the clip in the middle, one above and one below. One above was too lean, I could tell that right away and one below made the response of the lower end kind of choppy and lurchy. In the middle seems to be best. I'm editing a video right now on the new intake I made. It should be up tonight or tomorrow.
I've had the same issue it's not the carb at all its the clutch adjustment take off the clutch cover remove set screw loosen the clutch cable from the little clutch bar.....push the clutch bar in to engaged position and push the clutch plate down at the same time while holding these two down have someone tighten the castle nut on the clutch plate replace set screw clutch cover and reinstall and adjust the cable....once u have the clutch set properly I'm willing to bet $1000000 it'll crank on the first clutch pop.
Is thus really the best solution when bogging?
What kind of bars are those and where can I get a pair please?
They are Jones bars. These are the "SG" which is the same appearance as the "H" but not as expensive. I probably bought them on ebay. Search "Jones SG handlebars"
See my Mongoose To Motorized #2. It has a few pictures of the bars from different angles.
ua-cam.com/video/NARBFd4zBoQ/v-deo.html
Might I take the time to compliment the handlebars you have? Lol because I've never seen them before and not gonna lie it looks pretty sick, and spacy for add-ons too!
They are made by Jones. "Jones Loop Bars" these are the SG Loop Bars. Thanks for watching!
having exact same problem with one I've just built..fires.. throttle..dies.. going to try moving needle slot to btm and see how goes... let u know.
Yo did u tighten the flower nut in the clutch?
@@jordanrobbin7397 was nipplle on end of spark plug.. unscrewed it and tookit off,fired 1st time and went like s trooper :-) told my son n mates that it needed bedding in so of course they immeadiatly took it on local fields and thrashed the crap out of it... big smiles all round tho so guess well worth the £80 they spent on kit
@@jordanrobbin7397 was nipplle on end of spark plug.. unscrewed it and tookit off,fired 1st time and went like s trooper :-) told my son n mates that it the £80 they spent on kit
Notch number three is best for me😊
First I think I need to take your clutch apart and get it turned up also I think I need to pull your head and look at the walls of the piston make sure it's good to go. Some simple adjustment and ur good u shouldn't be getting so mad with it not that I shouldn't get mad but it's supposed to b fun and I hate seeing someone hate it so much out of frustration
I've named her Nightmare and for good reason. 😁 It's given me a lot of trouble, but they say the best horses won't be easily tamed. She's got spirit and she's making sure I'm worthy. 😄 It actually was running really good the other day. 72 jet, needle set one below center but then I shredded the small clutch gear for some reason. I'm thinking the clutch was set a little off or there was a bad tooth somewhere which had been slowly grinding away other teeth. Waiting on parts in the mail.
@@ChuckHaney that sounds like the perfect name for her. Glad your starting to get it all lined out, like u said the best horses don’t tame easily.
@@ChuckHaney my bike is named cafe queen cause if she ain't tuned just right it's off the the gallows for ya 😂
rise the clip settings on it in the carb
For chek the spark Plug color You need running like dor one week
MAKE SURE CHECK CARB GET CAN OF AIR MITE BE CLONGED
Do the breaking first before try full trotel
😂 ngl that’s kinda what he did but you gotta give home effort for trying 💯💯💯
sounds like its starving for gas . not to mention your clutch is slipping . you should not be able to ride that bike with out the motor turning over with the clutch out . like the handle bars though .
Iddle screw try thigten and up the RPM
check your crank seals
BROTHER I ALWAYS IT NICE IF SOMEONE WOULD MAKE A ELECTRIC STARTER FOR THESE ENGINE JUST HOLD ON TO THE BOTTON AND GO
They do make em for these motors but theirs a reason you don't see anyone really use them. They're trash and it's honestly best to just pedal start so you don't run into issues with flooding ect
@@MrJasenstewart97 , I have two of the BT80 electric-start kits, the only problem I've had with them was plastic pieces of the pull-start breaking off, and getting stuck in the gears, and I've had them since 2016, so IDK WTF your talking about.
@@jerryb1234 every pull start I've tried using broke and it was a different thing that broke each time
Those intake manifolds that are for tight spaces dont work. You get poor performance from them
You get poorer performance on the top end, but a longer intake increases lower end torque. Besides that I have no choice. There is no way to fit a carb on there without using an extended intake.
Looks like your pant leg is blocking the carb intake
Maybe the reed valve isn’t sealing properly
I don't have a reed valve.
it look like your fuel cut off switch is off. and i don't think i see any fuel in your filer Andyou need to adjust your clutch
Piston rings or compression lost
This was a new motor at that time. Perhaps the rings weren't seated yet. (?)
Sleeping clutch
the angle of your carb is too much ! in the Zeda Motosport books that come with the engine they say to dont go over 15⁰ angle for the carb
As I've explained to others (who refuse to believe me for some weird reason) much of what you see is camera parallax. The GoPro distorts the actual angle. With this hobby you can only take what others say so far, you really need to rely on your own experience. Zeta says no more than 15, many others say no more than 20, others say no more than 30. This problem was not the angle of the carb, it was too small of a jet (this thing wants a 72 for some reason, runs great now) and a slight air leak. It's working great now, or was until I shredded my small clutch gear for some reason. Waiting on parts. Thanks for the comment!
If you want to know what grinding down your small clutch gear sounds like, watch this short vidoe: ua-cam.com/video/ROeH5MB4NTU/v-deo.html
@@ChuckHaney ahah Nice to know Budd Im Building a motorized fatty too !! i want to be chaindrive with a 36tooth sprocket but i ran into some issues like the sprocket of the engine goes straitght into the tire i thought using a jackshaft like you but im worried about that tiny bicycle chain
@@shawnlegare6714 I wanted a shift kit from the beginning. I've actually never even realized that without one the chain would touch the tire. My shift kit 17T gear is about 1/8 an inch from the tire but I never really thought about it having to go past the tire. Just looked at my bike. I see what you mean. What do you mean about worrying about the tiny bicycle chain?
For the left side shift kit I use a 415 HD chain. I had that on the right too but switched to a Shadow Supreme half link on the right side.
Men its simple, I had the trouble and it’s not the carb. Check your clutch and change it or tight it
Once u got it started it sounds really lean get it fatter before u really rev it up bud
Use less oil maybe, sounds like it’s bogging out, I use 50-1 in mine.
You're idle seems super Low
👈💨
Pull your own finger. 😆
first
Sounds like a clutch problem too put that clip back to stock unless you’re doing REAL mods
Define "stock clip position." Define "REAL mods." Thanks.