Bing
Scoot Member
Swingin
Posts: 48
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Post by Bing on Oct 2, 2012 22:38:56 GMT -5
I found one tk jet that I ordered it's an 80. Then I checked an old razz carb I had laying around it's a tk and had an 82 main in it that will work too. I am not sure what size this jet is that came with my 19mm tk it's hard to make it out but looks like 69. I think we had the 82 jet in a late 80's stock razz 50 that didn't have an airbox or filter. I am looking for an assortment of tk jets and even pilot jets. :wheelie: I ordered a 70cc BB kit from Taiwan. This one it was $115 shipped: www.ebay.com/itm/180985928939?ssPageName=STRKSo I am wondering with a free flow exhaust, high flow filter in stock airbox and a 19mm TK carb what jet range should I be in with a 70cc kit installed? I am thinking 76 to 90ish?? I have a cone filter to fit it too if my stock airbox isn't letting her flow enough. :sos: Stay tuned.
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Post by kevin55950 on Oct 5, 2012 14:52:15 GMT -5
I generally go over 90 with a setup like this. 90 to 105 if I remember.
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Bing
Scoot Member
Swingin
Posts: 48
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Post by Bing on Oct 5, 2012 22:43:57 GMT -5
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Post by kevin55950 on Oct 5, 2012 23:56:11 GMT -5
If you use stock air box yes, if you use pod filter you may go higher. Use your air box as most as possible. Pod filters are harder to get the proper jetting. If you want more airflow, drill 3 X 1 inch holes on the engine/cylinder side of the airbox and put one unifilter for stock airbox in each. They aren't really expensive and they make your engine breath more air. They are generally enough for a setup like yours. Drill the holes at ''flat'' places to not break anything.
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Post by reveeen on Oct 6, 2012 1:54:14 GMT -5
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Post by jmkjr72 on Oct 6, 2012 8:48:23 GMT -5
you can get up to an 84 tk from yamaha some people claim to ahve goten an 86 but never come up with a part number
Jiangwayne.com has tk jets but they are expensive i wish i still had and oem zuma carb to compare some measurements too if i did i could proably get you pretty darn close on the jetting
on the oem zumas 14.5 mm tk carb with a mild pipe and a sport kit with oem air box maybe snorkel removed needle raised 1 notch and an 84 normaly works pretty darn good
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Bing
Scoot Member
Swingin
Posts: 48
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Post by Bing on Oct 6, 2012 16:38:42 GMT -5
I told the seller what scoot it was for and this was his reply: "yes, we receive your payment. we are cehcking everyting is o.k. & no damage no defect of the piston, rings,cyliner ,gasket, cylinder head...etc. and seal it with our packing staff.after final packing will ship out on Oct 4 2012. it is standard packing & shipping procedure. ship from Taiwan to your address will take 7~14 business days. is it your engine is 3KJ model with horizontal type engine? thanks" I told them yes my engine is horizontal. Hopefully they were smarter than me and sent me the right kit.
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Bing
Scoot Member
Swingin
Posts: 48
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Post by Bing on Oct 6, 2012 16:41:53 GMT -5
you can get up to an 84 tk from yamaha some people claim to ahve goten an 86 but never come up with a part number Jiangwayne.com has tk jets but they are expensive i wish i still had and oem zuma carb to compare some measurements too if i did i could proably get you pretty darn close on the jetting on the oem zumas 14.5 mm tk carb with a mild pipe and a sport kit with oem air box maybe snorkel removed needle raised 1 notch and an 84 normaly works pretty darn good The threads for the jets are 6mm so won't most 6m jets work? I have found them to look pretty close to the same.
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Post by jmkjr72 on Oct 6, 2012 16:52:34 GMT -5
they fit in the carb but then your numbering doesnt mean shit each brand numbers jets diffrently and becuse the formulay are there own there is no way to even think of doing a conversion to another brand www.zumaforums.net/phpBB3/viewtopic.php?f=3&t=19035&hilit=+why+use+the+right+jetsthere is a lot of very usefull info in that thread granted the example i have is from a tk22 from a kowi but the info explains why diffrent brand jets are diffrent
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Bing
Scoot Member
Swingin
Posts: 48
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Post by Bing on Oct 7, 2012 4:40:12 GMT -5
Wait your confusing me. Horizontal is left right like the horizon vertical is up down. My 97 which I am working on has a horizontal engine... ? no? The engine is laid over with spark plug facing forward. my 1986 has the vertical engine. Facing up. ??
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Bing
Scoot Member
Swingin
Posts: 48
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Post by Bing on Oct 8, 2012 13:11:55 GMT -5
Wait your confusing me. Horizontal is left right like the horizon vertical is up down. My 97 which I am working on has a horizontal engine... ? no? The engine is laid over with spark plug facing forward. my 1986 has the vertical engine. Facing up. ?? Anyone know anything about this pipe: www.ebay.com/itm/261107470038?ssPageName=STRK Technigas Next R and can someone drop some knowledge regarding the post above too please. Thanks!
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Post by kevin55950 on Oct 9, 2012 1:53:05 GMT -5
Horizontal engine has spark plug facing forward, facing the front wheel. Your jog, same has mine, has horizontal engine. Those engine has reed valves on crankcase. Vertical engines like older Zuma has spark plug facing up , facing the seat. They have reed valve on the cylinder.
Also, some of my friends used technigas exhausts. Rust was a big problem, they aren't the best quality exhaust... And you can get better performance with some Leovince, Stage6, Doppler, etc. for a little more. Next R is an entry-level exhaust more suited for a 50cc engine. I don't know specifically those exhausts but dealers around don't recommand them first. You may look for a Stage6 Pro replica, they aren't priced too high and they are great quality exhaust ( I'm not sold to stage6 parts, at all, but some dealers installed them on 70cc engines and they performed well for the price they are. )
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Bing
Scoot Member
Swingin
Posts: 48
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Post by Bing on Oct 16, 2012 3:36:08 GMT -5
I ordered the next r pipe just to try it out.
The 70cc kit came and it's the right one. I ordered stock pin clips for it.
Just for giggles I put a barely used stock clutch from a newer eton beamer on and it fits and works. The bell is much bigger but fits with the cover on. My stock clutch only had two shoes and this eton clutch has 3 shoes. The clutch shoe springs are heavier than the aftermarket 1k springs. With the stock eton springs I get some rev before it engages with the 1k smaller jog springs I get no rev before it engages so this must take a larger spring set? I was trying it to see if it would be an acceptable low cost upgrade to a 3 shoe clutch. What springs are for it anyone know?
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Post by kevin55950 on Oct 18, 2012 23:09:27 GMT -5
For Beamer clutch, autotech355 on eBay has them ( ask him the 3 set of springs for the Prodigy clutch, Prodigy clutch is mostly the same as the Beamer one, same springs etc.)
3 shoe clutchs are more durable and feels better on the scooters I tried them. Beamer clutches are good, seriously. They are more durable and better performer than stock 2 shoe ones ( on my opinion and on my 103cc Zuma also...) Stock clutches are 105mm and Beamer is 107mm as most performance clutches are. But the clutch of my Jog is still good, I ran it last time on my 103cc just for fun. This clutch has maybe 10k miles on it or more but it lasts.
Stock clutchs are having a smoother engagement, and performance clutch have a faster engagement. I think the feeling of a stock clutch is better than a performance one on the street.
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Bing
Scoot Member
Swingin
Posts: 48
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Post by Bing on Oct 19, 2012 15:00:09 GMT -5
Thanks Kevin for the helpful info. I searched prodigy springs but found nothing. I will contact that seller. Thanks again!
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