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Post by YamahaRick on Sept 30, 2020 21:52:43 GMT -5
Guys, newbie member here. I'm trying to catch up on the knowledge of this forum. Thanks to all that contributed to this thread.
OP, I will be following your adventure closely. Good luck!
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ingram
Scoot Enthusiast
Posts: 100
Location: Houston, TX
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Post by ingram on Oct 1, 2020 11:34:19 GMT -5
Guys, newbie member here. I'm trying to catch up on the knowledge of this forum. Thanks to all that contributed to this thread. OP, I will be following your adventure closely. Good luck! Thank you and welcome! Yes this community has been extremely helpful for me during this build out so very grateful to everyone involved. I have some updates to post soon as I currently have a lot of my scooter apart installing the new carb and fixing a couple items that came up during the process. |
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ingram
Scoot Enthusiast
Posts: 100
Location: Houston, TX
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Post by ingram on Oct 3, 2020 13:36:09 GMT -5
Hey guys, I have had my oil line disconnected the past few days as I am working on putting the Polini CP carb in and oil is very slowly seeping out over time. I have had to keep a paper towel on the end of the line while disconnected otherwise it would be a little puddle on the floor.
I assume this is somewhat normal since the oil tank is higher than the carb but there is not a check valve on the Polini CP oil intake so is there something I should do to prevent the oil from just building up in the carb or cylinder when I am not riding it?
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Post by aeroxbud on Oct 3, 2020 15:49:47 GMT -5
It's why two strokes smoke worse if left for a while without riding. It will come out more if disconnected. As there is no pressure to stop it.
Block the pipe off if not being used.
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ingram
Scoot Enthusiast
Posts: 100
Location: Houston, TX
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Post by ingram on Oct 7, 2020 10:13:57 GMT -5
Ok an update on current status. I took the bike apart to get the new carb installed along with a new throttle setup and choke lever. I discovered my oil injection line was not long enough for the new carb so I needed to replace it which meant taking the stator off anyway. Ordered new seals so that I would only have to take the stator apart once and replace the oil line as well as the seals. I let the bike sit for a little and then when the seals came in I went ahead and replaced them. Also looked at my intake manifold and saw some signs of leaking between the manifold and reed block so I added another gasket there and copper sprayed both gaskets to make sure it is sealed good this time. At this point I am having issues with my choke cable being too long so its not actually pulling the choke when I pull the lever so I am going to just cut the cable to make it shorter and solder the end back on. Once I get the choke cable sorted then I need to install the throttle cable and adjust and then finally I can put everything back together again and start tuning the carb. I didn't expect all the little things so my carb replacement is taking much longer than originally expected but it should be worth it in the end as I got to clear up some air leak signs. Intake manifold with a gasket on bottom and top of the reed block both copper sprayed.  New NCY needle bearing throttle and grips. Really impressed with the quality for $25 from Aliexpress.   Original seal on stator side just before removal. Wood screw method as suggested from Zino worked great to get the seal out.  New seal installed.  Variator side seal removed and ready for new one.  This is what I put together to put the seal back in at the correct depth which worked great.  New seal on variator side installed.  |
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Post by Steve B on Oct 7, 2020 11:51:48 GMT -5
Ingram Angle, I have no words for how great those NCY handle bar grips look. You are making great progress on the build. Everything is looking good so far keep up the good work.
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Post by aeroxbud on Oct 7, 2020 11:53:53 GMT -5
You have been busy!
It's really annoying having to change the oil line, and bleed it. Just because it's a tiny bit short. I had the same problem when I fitted my carb.
The stator side seal can normally just be hooked out.
I really like the look of those ncy throttles.
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ingram
Scoot Enthusiast
Posts: 100
Location: Houston, TX
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Post by ingram on Oct 7, 2020 15:26:00 GMT -5
Thanks guys yes things are coming along nicely! I think one of my favorite parts about the NCY grips is that they are much thicker than the stock grips so they are more comfortable in addition to looking nice and having a smooth movement on the throttle. Here is the link to those grips just FYI, there are different colors to choose from as well. www.aliexpress.com/item/32834236053.html |
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ingram
Scoot Enthusiast
Posts: 100
Location: Houston, TX
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Post by ingram on Oct 7, 2020 15:38:02 GMT -5
Got my choke cable all fixed up. I didn't have a cable end so I just added solder to the cable and then cut it in the middle of the solder so it wouldn't fray and then overlapped it about a half inch and soldered it together again. It took out just enough slack so that I can now actually adjust the length at the bendy on the carb and get it to engage the choke with the lever appropriately. With my other hobby being RC drones, planes, and helicopters I had plenty of soldering experience and equipment so this was super simple for me to fix up this way.  |
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Post by Zino on Oct 7, 2020 20:16:46 GMT -5
Looks great I like the way you made pvc pipe tool for getting perfect depth.
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Post by 808ministroke on Oct 8, 2020 6:15:11 GMT -5
Thanks guys yes things are coming along nicely! I think one of my favorite parts about the NCY grips is that they are much thicker than the stock grips so they are more comfortable in addition to looking nice and having a smooth movement on the throttle. Here is the link to those grips just FYI, there are different colors to choose from as well. www.aliexpress.com/item/32834236053.html Thanks a lot Mate! I Have been looking for a pair of those grips with the throttle bearing for under 50 bucks all over Ali express and I was not able to find any my right hand is very grateful.. And I have to add of course awesome build you got underway Good choice with the CP carburetor they are personally my all time favorite for 70C c's sport builds, Super easy to tune , and the 19 mm is just able To fit in the stock intake perfectly but I'm sure you've noticed that the tract is a lot shorter in the carbis a lot better designed Even when compared to MA cooney 17.5 the I have got in stock on a lot of bikes Come to think of it I still have those too as backups But I wouldn't ride any Singh other than a stock to the bone by with a bone stock carb. I forget what you're upgrading from but you'll definitely notice a huge increase in cylinder feeling exhilaration and cooler temps! Plus things are just dam cool too,, Just got my 1st dellorto 19 cuz was on sale 4 35$ and genuine, But none the less I would have rather had a nother CP19 for the same price any day....great build🏁 |
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Post by 808ministroke on Oct 8, 2020 6:16:25 GMT -5
Oh And most importantly ditch the choke cable for manual choke library always the best way to go that's just my 2 cents.
Ps I don't have 1% the soldering skills you Possess. So maybe you're on such another level that extra cables with random ends in adjustments are just fun for you at this point lol
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Post by 808ministroke on Oct 8, 2020 6:30:31 GMT -5
Hi this is my first post I’ll chime in. I have an 04 with Athena 70 and dellorto 17.5 carb and I have a 95 main with 38 pilot and a leo Vince pipe. I just also installed 14/42 gears and my phone gps app clocked in at 59mph. I think it might be off by a couple mph still though. Your top speed I would think should be able to break 50 mph no problem. You might see some more with the new carb. Thank you for the info and yes I am hopeful the carb will help. Seeing that you are using a 95 main on the Dellorto 17.5 makes me think I should start with a 98 on my Polini CP 17.5 and go down from there instead of starting at 88. As everyone has told me so far it's always better starting out rich anyway and going down. O while I just went back and read this I would definitely start with A 98 95 main jet at minimum. Even with a stock cylinder 50C c's with a a slightly (ment for fitys like a technigas with shorter resonance legnth) chambered pipe , polini cp 19mm, with polini short straight pod filter i was probably running a 98mj and like a 42 -45 idle jet and i live at sea level, hope that helps. |
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ingram
Scoot Enthusiast
Posts: 100
Location: Houston, TX
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Post by ingram on Oct 8, 2020 10:08:18 GMT -5
Oh And most importantly ditch the choke cable for manual choke library always the best way to go that's just my 2 cents. Ps I don't have 1% the soldering skills you Possess. So maybe you're on such another level that extra cables with random ends in adjustments are just fun for you at this point lol Thanks, are you saying go with a choke knob instead of the cable? I wanted to but on these Zuma’s it’s hard to reach the back of the carb when running stock airbox so I went with the cable just so I could mount it in an easy to reach location. When the cable didn’t adjust right I almost just bought the knob but then decided to try the solder fix which yes ended up being fun for me anyway. 🙂 |
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jayrod427
Scoot Enthusiast
Posts: 114
Location: Kansas
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Post by jayrod427 on Oct 9, 2020 14:00:52 GMT -5
What choke cable did you use? I just got the polini choke cable and am installing the same carb. The polini on the choke knob end has a set screw cable end instead of the pressed on ball. So you just trim the knob end however long needed. Looks like you had to do the carb end with the soldering.
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