HP Carb Examination - Motorised Bike

[@ReynardFuchsmann]

Super informative video regarding the anatomy of the carb. Thanks!!

[@edwardbeierlein2587]

Anyone had difficulty with the choke not releasing? I have to manually un choke 99.9% of the time. Any advise out there?

[@NicksBikes]

I never got that automatic choke to work. I always had to do it manually

[@cory4152]

Be sure to take up any extra slack in the throttle cable housing with the barrel adjustment. It needs to be pulled fairly firm to disengage the choke.

[@NicksBikes]

@@cory4152 This carb is loooong gone, stolen with the rest of the bikes. But excellent and much appreciated advice nonetheless

[@Goshdog]

My won't work either

[@JamesPiccone]

Great carburetor for what they are a lot of people complain because they come to Rich of a jet.I think the stock NT carburetor comes with a 70 so you could throw that in there to get by but I got a 61 in mine if that tells you anything might be different in Australia though.

[@NicksBikes]

Fun fact, I already swapped the NT jet. Coming up soon 👍

[@Yukanhayt-Mhenow]

Put a 0.60 in mine, runs mint! Tried a 0.65 and it sounds a lil rough, Put the stock 50cc stock carb jet in and im yet to test, I believe that jet is between .65 & .60 somewhere...

[@matthewdoherty789]

So I bought one of those "sha- clones".This one has has an extra hole for what looks like a cable to operate choke.Gonna try soldering hole closed and going from there,will this work you think??

[@LoganFitzsimmons]

​@@matthewdoherty789i have the same issue i wouldnt reccomend soldering it

[@dennisz2975]

For mystery chronic leaky carb. .. Deck the float bowl flat and smooth. 99% its this.

[@jwvgoethe77]

What's that screw your thumb's on at 8:04 in the video?

[@NicksBikes]

Idle adjustment screw

[@jwvgoethe77]

@@NicksBikes ......had my 66cc out for it maiden ride tonight. It won't stay running in the idle position. I suspect this screw needs tweaking. Is there a general rule of thumb as to how many turns in, to have this at?

[@NicksBikes]

@@jwvgoethe77 it's just trial and error. These are not high precision machines. My advice is wind that sucker right in for a high idle and work your way back half a turn at a time. I've found they want to idle higher when they're cold anyway, so ride your bike for 5 minutes before trying to find that idle sweet spot.

[@LoganFitzsimmons]

I got one that the throttle also pulls the choke on with dual cables and im just confused did i buy a piece of junk? Because i ordered 2

[@NicksBikes]

@@LoganFitzsimmons yeah this is not my favourite carb. NT Speed is a tried and true option and easier to tune

[@tae1451]

Ok stupid question if you break the slider where could u get or make a new on without getting a hole new carburetor

[@NicksBikes]

They're so cheap you should really just buy the new carburettor

[@tae1451]

@@NicksBikeswhen u dont have money and money doesn't grow on trees then what can you do

[@tae1451]

U may think they are cheap but some people it's not cheap

[@NicksBikes]

You will spend more money machining a replacement slide than ordering a replacement carburettor. Prove me wrong 🤷🏼‍♀️

[@I.M.SofaKingdom]

Use a corn chex

[@williammclain2528]

I just got one ah those carbs an it wouldn't run as good as the stock carb then I tried drilling the jet an still not as good as stock carb but I'm still learning tricks to get it to out perform the stock carb

[@NicksBikes]

It honestly won't out perform an NT carb. Try getting a mikuni or dellorto carb

[@shawnstone4949]

I just got mine in the mail yesterday! Getting ready to go through it this AM. Did you notice a little better performance all the way around from installing this carb? I’ve got a nasty jack expansion chamber,and I seemed to be hitting a wall with the other carb. So for $18, why not try it out?

[@NicksBikes]

I found that it eliminated 4 stroking across the range, but wouldn't let the engine hit high RPMs so robbed me of top speed. These carbs come jetted rich, so consider swapping the jet with the stock NT carb jet. Otherwise, I had best performance with a #65 jet. I didn't mind this carb, but I think the NT Speed carb is the better choice because it's easier to tune and offers more reliable performance across the rev range

[@shawnstone4949]

@@NicksBikes I’m going to try a jet kit.. then mess with idle screw… saw someone else on another channel to mess with timing a bit..

[@asphaltcowboy7868]

Mine...revs really high at idle but calms down once running...what do I do to adjust the idle?

[@NicksBikes]

Try changing jets. Sounds like maybe you need to go up

[@asphaltcowboy7868]

@@NicksBikes up in jet size means, more fuel? Why does it calm down once I'm riding?

[@NicksBikes]

Up in jet means more fuel, yes. My bikes tend to rev high until the engine warms up then settles down. You might also find that the throttle slide might be sticking. Check that the throttle cable isn't bent or twisted in there and that the throttle spring has seated properly. Sorry for the late reply, KZbin had this flagged as spam for some annoying reason!

[@bikerevolutiontv]

I've used them and have good luck

[@NicksBikes]

Once it was jetted properly, it ran fine on my bike. There was less 4 stroking but for some reason I could hit higher speeds with my NT speed. Admittedly I don't have much experience with different carburettors

[@marcoacho]

Its installed in 70cc motercycles?

[@NicksBikes]

66cc in this case

[@rewabaso500]

what number to play jet

[@NicksBikes]

For me #65 worked best. Jetting depends mostly on elevation which affects air density. Consider whether you are closer to sea level or high in the mountains

[@rewabaso500]

@@NicksBikes thanks a lot for the info

[@donniestuckey3835]

Do that piece of junk away and get you a NT carburetor you can only Force so much air through it

[@NicksBikes]

Yeah I agree. The NT is an infinitely better carburettor