Perpetual Where To Find Jets Thread

[devonrs]

hey, i need to re-jet, but my dealer can only order the jets in packs of four, and so i'd have to be 12 jets if i want the next three sizes... is there anywhere online or anything i can order them individually? and also, what kind exactly should i be looking for? mikuni small round? i'm not totally sure... (it's for a 49cc vino)

[Davey-boi]

That's a load of bull****! Your dealer should be able to sell them individually. Thats how I got mine. Is it a Yamaha dealer? Cuz if it is, tell em that people buy them individually everywhere else. If they still give you crap, you can go on ebay and type in "mikuni main jets" and just get the size you want. My guess is you'll probably need a size 72-74 cuz you got a stage 1 right?

[King Vino]

My dealer took weeks to get one for my upjet, got the wrong one, and ended up getting a freebie from Vinnie Reno. But my dealer tried to charge me ten bucks for one jet, which leads me to believe they ordered an entire set and tried to charge me for the cost per set for just one jet. Several months later when I was hired to to work on the scooters Matt told me and showed me in the parts catalog that they were sold in sets only so there is truth in devonrs post, but I think a lot has to play with the distributer, and the dealer.

[Davey-boi]

Thats kinda shadey dude, glad my dealer has some good guys workin there.

[devonrs]

well the guys at my dealer are nice, and it is a yamaha dealer, they just dont stock the jets cause they sell like, one a year, they told, so they said if they were gonna order them i'd have to pay for the whole set, and i do think it's kinda lame of them to not just let the other three jets in the set sit on the shelf, even if they don't sell, who cares about that 7.50 in change? i've spent thousands there!!

so yeah, i'll look on ebay, but again, what kind exactly do i need? small round? large round? small hex? etc etc... i dont know... !

[XPS1210]

you need a mikuni Jet... they are the larger of the hex ones... the stock one on the 19mm carb erich sells on provo is a 95 jet...



Just run a google or msn search for mikuni jet, this is the type you need... now just find a distributer who sells a 95 range one... OR.... Erich can sell you one...

sales@provoscooter.com

[Shane]

Read the thread called "Got a New Vino? Try this!"
All the information you need is in there. Look on the part that explains about installing the jet. (after the section on dismantling)

It will be what they usually call a "large round slotted head".
There is another name for it, but this is the term used most of the time. It should be 8mm at the tip of the head.
It should NOT have an engraved line running around the head.

Sounds like you are having the same problem I had trying to locate a jet. Try your nearest honda dealer too. They use them also. They sold them individually for $3 each.
Honda busted out a catalog and matched the picture.
They are all over the net too! But make sure you try to match a picture.
For me, it was faster to get it through Honda and not pay shipping, than order off the net.

[XPS1210]

okay... I guess we need to clear up this... the stock jet is a large round jet with a flat head slot in it...

The 19mm carb that erich sells and a lot of the aftermarket ones are mikuni jets...


Depends on what your set up is....

Sorry if I didn't clarify that before...

[devonrs]

umm.. damn this forum is always so confusing... i don't need a large hex jet, i know that. and i certainly don't need a 95. i'm currently (stock) at 66, so i need a 68, 70, and 72, or whatever numbers are right around there. i'm pretty sure it's a round one, and it looks like you're telling me it's the large round one? i've found them for sale online, but it's the same deal as at the dealer, they only come in packs of four... ???

[devonrs]

okay, pretty sure i found em for sale individually, but just to confirm, these are the right jets, right?

http://www.jazzmotorsports.com/shop/product_info.php?products_id=385

[XPS1210]

I took my stock carb apart to take a pic of the jet...

Here is what it looks like.... From the web site you posted above


As you can see there are 2 different "round" jets in the stock carb... one is large and one is small...

http://www.hiperf.com/acatalog/Online_Catalog_Jets___Mikuni___Keihin_82.html

Kitty Cat Main Jets(Reference #233MJ)
Genuine Mikuni - available in 65, 67.5, 70, 72.5 and 75

$2.75


This is the jet you need... as I said I can't tell from the pic in the link you provided if their jet was this type... Hope this is finally what you need... and the confusion is now over...

[devonrs]

okay thanks, my question was answered when i saw that someone told me it's the 8mm one... that is the large one, as opposed to the small one, which is 6mm.... okay, got it, thanks everyone... now if i could just find a site that sells em cheap enough and won't charge me 12 bucks to ship the little suckers....

[devonrs]

wait, it should NOT have an engraved line running around the head? it looks like most of the ones (if not all) that i've seen for sale online do have that line... for instance, this site here:

http://www.hiperf.com/acatalog/Online_Catalog_Jets___Mikuni___Keihin_82.html

can someone tell me if those are the correct ones? (the kitty cat main jets)

[Shane]

Wow-- that's a tuffy.
According to all the websites, you are right. The sides of the large round slotted do have an engraved line circling the head. (part 100/604)
When I looked on the Mikuni site, they only showed part 100/604 for large round slotted.
It's strange, because When I compared them at the Honda shop, the 100/604 seemed to have a thinner head. The thumper dirt bikes run these types (in a way bigger size of course)
The only large round I could find on the net without the line on the side of the head was a large round VM 11/22 (which is rare & used on bigger bikes)

Is there a Honda dealer by you?
Can you take the jet with you and have him match the part?
That is what my Honda guy did.
It helps to have the jet with you when you go in. Just don't lose the damn thing on the way down.
The part number on my package from the Honda shop is 13-10then whatever size of jet you need. for example, 70 jet= 13-1070
67.5 jet =13-1067 5
What size are you looking for?
If you can't hook up, let me know & I can get you one/some & send them to you.

[King Vino]

You guys gave me a good idea, that i need to run by the boss.

[Lennox]

yeah,

King is right..... (Erich are you listening?)...... Provo should sell individual jets.............

[King Vino]

I emailed the boss about this an hour or two ago. Hope ot hear from him soon on it. I suggested he carry sets that way you're all set from derestriction all the way up to stage 4.

[devonrs]

in response to shane's post-- thanks for the info, but in case you didn't read the entire thread... there is certainly a honda dealer near me, but that's the problem, they don't carry the jets and can only order them in sets of four, for which they'd have to charge me for the whole set... i don't want to buy 12 jets when i only need three...

the guy at the dealership also mentioned drilling my existing jet out larger, he said if i had them re-jet it that that's probably what they'd do, just drill it up one size larger until it was running rich enough... i suppose i could try doing this on my own, he just said to be really careful.... anyone else done this or heard of it?

[King Vino]

Maybe you should just buy whatever size jet you want then find a carb to fit the jet :p Try a 240 jet :)

[XPS1210]

Maybe you should just buy whatever size jet you want then find a carb to fit the jet :p Try a 240 jet :)


hahahA!...

As for the "engraved ring".... these are the "standard" cat-eye jet... http://www.hiperf.com/acatalog/Online_Catalog_Jets___Mikuni___Keihin_82.html Not trying to sell their product... but... What's the difference if there is a "ring" on the side of the jet or not... it isn't as low as where it seals up... it seats on the threads and the flat part just under the threads...

So, why wouldn't it work? I guess I don't understand about the ring? the jet only touches the carb on the threads on a tiny part at the top of the threads...

right?!

[XPS1210]

okay thanks, my question was answered when i saw that someone told me it's the 8mm one... that is the large one, as opposed to the small one, which is 6mm.... okay, got it, thanks everyone... now if i could just find a site that sells em cheap enough and won't charge me 12 bucks to ship the little suckers....
http://www.hiperf.com/acatalog/Online_Catalog_Jets___Mikuni___Keihin_82.html
only charges $.50 for normal shipping to me here in alaska... so I think it should be the same for you there in seattle..

[devonrs]

okay, so are you saying that you are using jets from that site? the ones with the ring around the side, and they're fine? if so i'll order some from them right away, as i said before, i'm running SUPER lean and am scared to drive my scooter at all but i gotta get to work and the bus takes an hour, where as the scoot take about 12 minutes....

[XPS1210]

I am using a aftermarket carb that takes the hex ones...

But... I see no difference in the jets....

I sent you a pm... read it and go off of that info... as it pertains only to you...

[King Vino]

Ok, this was the reply I got from Erich on the jets.

It is a good idea, but I do not carry the stock yamaha jets as they have some weird carb that does not cross reference with anything. All the Chinese jets are easy enough, but I don’t feel the market is big enough for those alone. The only place I know to get Yamaha jets is the dealer. If you know of any other way to get them, let me know. The last time I bought one, I had to special order it from the dealer. I know it’s a pain, but I don’t know how to get a hold of them. Thanks for the idea though, it is a good one.

My Yamaha dealer couldn't even get the jets for me, and when the jets arrived they were the wrong one and would not fit since there is a long jet and a short jet, and there were no model part numbers for them.

[devonrs]

okay, so i got the jets, the kind with the engraved line running around them, ....and, (and i know this is pretty stupid, but..) i just realized i have no idea how to get to the carb, or the spark plug.... i know i've seen it posted/written on here somewhere, and i've spent the last ten minutes looking, but can not find it... do i have to take off a side panel, or the seat/bucket area to get to the carb? i took off one side panel already, the left one (left if you're sitting on the bike) and that was obviously not it... can someone help me out here?

[XPS1210]

I was waiting for the Jered owes me $3.00 post...

To get to the carb you can remove some body panels... to make the jetting easier.. but it's a little more prep work...

Now I am not sure how the Vino is exactly but here is how on a zuma and it should give you a close enough idea to get them off...

take the battery cover off, 2 phillips screws...

Under that there are 2 more screws that hold the curved piece under the seat in place, and one right at the top, front as well. Take them out... then

Take the seat off, 2, 10mm bolts...

There are 2 large screws on the zuma that hold the curved piece under the seat... they are shiny and on the painted part of the side panels... remove them...

Then the curved piece will come out... You might have to take a couple more screws out of the painted pieces to allow them to be "bent" out of the way for that piece to come off...

You then have the option to remove the trunk or leave it in place... for a jetting you can leave it in place...

Anyway, if you choose to leave the panels or remove them, lay on the ground on the left side of the bike... you can see the carb (by the air filter), there are 2 screws on the bottom of the carb... unscrew them... the whole bowl will come off... as well as spill gas out... The jet is right there...

here is a picture of the carb... and how it looks in blown out form...

the blown up pic.... there is a large cup at the bottom... that's the bowl... remove it with the 2 screws and you now have access to the jet...

[devonrs]

haha, no, i really don't care about the $3.00 - anyway, so you're saying i remove the seat... which is how it seemed from my view through one of the side panels... well i unscrewed the two screws and the two 10mm bolts that hold the seat in place, and it doesn't budge.... as far as i can tell those are the only screws holding the seat/bucket in place.. yet i can't get it off... anyone that's done this to a vino before know something i don't?
thanks,
devon

[Shane]

It sounds like you are talking about the thread called "got a new vino? try this"
This thread is on the 2nd page of the vino performance forums.

You don't have to take off the seat. All though it will give you much more room to work with.
Just the left body panel like you did, and the front panel under the seat.

You will see the black airbox connected to the carb on the left side of the scoot.
Once the airbox is removed, carefully move the electronics from the front to give you better access to the carb for adjusting when finished.
unscrew the strap holding the carb to the intake manifold and there you go.

[devonrs]

wow... i really wish this had been clear to me in the first place.... but at least now i know for next time, and yes, there will certainly be a next time, cause i got the WRONG JETS! they're too small!!!

but regardless, i just pulled EVERY single panel off my bike, floorboard and everything... to finally discover all that i had to do was tilt the bike on it's side, take off the airbox, and then i could access the bottom of the carb where the jet is.... my god. i just finished putting the bike back together, of course i have a few extra screws...ugh. but at least it was an educational experience... guess i'll be re-ording those jets now....

oh and jared, now you DO owe me $3.00. :)

[XPS1210]

okay...

At least it was fun right!

[devonrs]

okay so that site that i got the jets from, hi performance, doesn't have any larger round main jets... wtf? they also claim to have never heard of anything like shipping jets to alaska for 50 cents... ??? anyway, i decided to just give in and order a set of four from the dealership, but they're a bit confused about it too, so i think i'm gonna just bring my jet into the guy and have him drill it out bigger... anyone else ever tried that?

[XPS1210]

I know king vino has done that...

The other thing is... make sure it's not to big of a hole... or your out of luck...

If you get the hole to big.... imagine how much of a pain it will be without having a replacement jet...

[Shane]

If you drill it, you want to do it right. Make sure you do your homework.
Take it to a machine shop or someplace like that. You will need special bits.
There are only a few places that I know of that even carry these bits in Portland. (other than your local dentist!)
A typical 16th of an inch bit is going to be way way way too big. And these are usually the smallest you can find in a typical "run of the mill" set.
Hand held manual bits are out there somewhere too. I had a buddy do it that way. (on a dirt bike)
One time, I almost used a Harbor Frieght mini-tiny file, but it would'nt have drilled a straight/even shot. ( I was concerned whether the stream would have flown correctly out of the jet)
Let us know what you used. I'm curious.

[devonrs]

okay, well, i wasn't gonna drill it, the mechanic at the dealership was going to, and i have no idea what he was gonna use.. but it ended up not happening, i just ordered a jet from them, ...after much rifling through paperwork and catelogs they were like, oh, turns out we DO have a jet you can order, six bucks, for one jet, size 72, not 72.5, is that weird? do they just come in a million sizes? anyway, i hope it's about right, going up from a stock 64 with stage one... though i'm just gonna order stage two any day now anyway, so it won't matter.... i guess i can just save the 72 for my girlfriend's vino when i put a stage one on it.

and is any re-jetting ever necessary with the stage 2 carb?
i really don't know much of anything about stage 2, and would like to...

[XPS1210]

stage 2 comes with a 95 jet... which is the easier to find "large hex" jet... So no worries about getting that jet...

My set up only has the 95 jet in it... I also have a 100 and a 105 jet but haven't gone to them as I'm okay on my tuning for now...

sTage 2 is much better... heck, stage 3 and beyond is fun as well!