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Messages - skishades

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1
Super 8 150 / Re: Big Bore Kit
« on: October 28, 2015, 10:00:52 AM »
Still breaking in the motor but the first tank of fuel has was used up and I averaged 70mpg at 30'ish mph with the upgraded engine. The second tank, I remembered to put premium fuel in instead of regular and it made a huge difference. I had A LOT MORE POWER! After I used up a tank of premium, I averaged 88 mpg at 35-40 mph. I am slowly breaking in the engine and I am working on the last 100 miles. I plan to change the oil at 300 and see how the new parts are holding up. So far, I am impressed.

2
Super 8 150 / Re: S8-150 CDi Rev Limiter??
« on: October 23, 2015, 05:50:01 AM »
Is this another upgrade I need zombie? Big Bore kit, carb, pipes and air filter are done and I am planning the a transmission rebuild... now I need a new CDI program. Let us know please... ;D

3
Super 8 150 / Re: Big Bore Kit
« on: October 23, 2015, 05:45:25 AM »
With a large top case by GIVI. I ride at night so my pics are at night  8). You can see the air filter and the missing air box in the photo. Too bad you can't hear the sound!

4
Super 8 150 / Re: Big Bore Kit
« on: October 23, 2015, 05:40:54 AM »
The new carb bottom needed a new carb manifold which did not sit as high as the original manifold reducing the clearance for the carburetor. The carb bottom has that protrusion for the drain which stuck out too far. I took the old carb bottom off from the previous carb and it fits perfectly. Carb sits tightly against the frame of the bike but it works. I also used a radiator hose to fit the new air filter on and S it around where the filter would fit, around the same place as the original air box. Drilled holes and connected the vacuum lines into the radiator hose and everything now works. The air filter is 50mm and originally would be knocked off by the seat pan due to its size. The new location just makes it easier to clean or change in the future.

5
Super 8 150 / Re: Big Bore Kit
« on: October 23, 2015, 05:34:20 AM »
Is that a cover on the AF?

6
Super 8 150 / Re: Big Bore Kit
« on: October 23, 2015, 05:33:26 AM »
Well, I have an update. Scooter runs, I am breaking it in at 40mph for the first 300 miles... definitely has pep. I am learning to jet and adjust the carb a bit at a time. I have not touched the original 60 idle jet nor have I touched the needle. I have changed the main jet from 138, which bogged past idle to a 120 which bogged and popped past idle. My 130 came in last week and I have power... still bogs at the transition between idle and the main. After 120 miles, I checked the plug and found the tip white and the ring black and forums are suggesting it is about right (though a lot of pictures and descriptions would disagree). The ceramics are intact and the metal does not look dented/pitted.  I think 128 might be the ticket but also thought adjust the AF might work too... if it has one. There is no clearly marked screw for the AF.

7
Super 8 150 / Re: Adjusting the Idle [VIDEO]
« on: October 23, 2015, 05:07:44 AM »
The idle is even easier with the seat pan out. My question is, does the carburetor have an air/fuel mix screw?

8
Super 8 150 / Re: 2014 Super 8 150 aftermarket exhaust
« on: October 23, 2015, 05:03:32 AM »
I have a 2009 and tried to get a two brothers exhaust. They are not available at all. Only Yoshi pipes are still made. It should fit the 2014, but can't testify. Also, it is an off road use only pipe. There are no street legal pipe changes available because the manifold is welded to the muffler and manifold changes are not legal. I still put one on and it is louder and a bit deeper... definitely not a 55mph weed whacker anymore. I left the sound reducer in the pipe so the sound is at least not breaking laws; it is also less likely to draw the cops attention completely if it isn't totally obnoxious.

9
Super 8 150 / Re: Battery Replacement Question
« on: October 23, 2015, 04:58:09 AM »
Two screws and it pops off. I replaced my battery with a lithium iron battery (car version of lithium ion). Expensive but super light weight and it has twice the amp hours of the original battery and it still nearly half the size. I have the extra juice on colder starts and it has a longer warranty than 3 years... about 7 I think. I also recommend getting a trickle charger for scooter batteries. Easy to add with the 2 screws off and will prevent the battery from prematurely wearing out.

10
Super 8 150 / Re: Super8 Electrical Issue
« on: October 23, 2015, 04:53:53 AM »
I had similar issues with my Kymco Super 8 150. While I had it apart, I did a lot of updating which created new issues and learned a lot about how it works. Basically, the CDI sends a signal to the ECM r/t to rpms. At low revs, a signal goes out that tells the ECM to reduce power. This prevents battery drain at idle by the headlights and helps when starting the engine. An error can occur at high rpms when the CDI is limiting the engine and it will cut out the signal to the ECM. It makes the ECM think the engine is off which cuts the lights. I replaced the CDI and ECM and only got short lived results before the problem kept repeating. It is in the design of the ECM and CDI. Shortly during this fix, I had replaced all my lights with LED's including the headlights (not legal due to light scatter but I resolved that on a different thread) which tricked the ECM to thinking the lights weren't even working, resulting in a set of different problems. The fix, for both the original and the mods I made, was to wire the headlights directly and bypass the ECM entirely. I had the extra power due to the low draw from the LED's so I had no starter issues from the bypass. I know it started well for me when I first by passed the ECM before the LED's but can't testify how it would start on a cold day or with a weak battery. If you found another way to solve the problem, I would love to hear it.

11
Super 8 150 / Re: Big Bore Kit
« on: July 03, 2015, 09:52:07 AM »
I can't comment on Malossi or Polini since I haven't ordered any of their parts. The Naraku parts look nice and everything does fit... to itself. I went with a Naraku 30mm carburetor since I hadn't read your comment but I will remember that for next time. My impression of Naraku is they are built to be light weight so I know endurance will be an issue. Naraku made the big bore kit which is what set me on its path...

I looked at Naraku transmission parts against Malossi and Polini and I could really see the build differences and was the first time I began to question the quality. Naraku wanted to add 2k rpms to engage the clutch and everything looked thin in the pictures of the others. I can't imagine my engine lasting very long with a Naraku clutch. It seemed really great way to get really high power for a short amount of time... not at all what I am after. I just want the reserve power to be there in a pinch but I want to trust I will get to work or finish the ride.

Sadly, the Two Brothers Racing exhaust is no longer made and completely unavailable... despite what websites are claiming. The only after market pipe left was Yoshi (purchased the carbon solely bcz of the weight difference). The difference, a slightly louder, higher pitch exhaust. I really liked the lower rumblings of the TBR though and it had a sound reducer to add too... oh well.

I don't want to tax the engine too much so I am looking for a good clutch. Malossi is $180, Polini $120 and Naraku is $110 (but it revs high by design which means its not an option for me). Already purchased a Naraku Variator with 11.5g rollers (and 9.5g rollers for those wanting faster starts). I will probably need to add heavier weights but its a starting point. All of this is new to me. The transmission is my winter project... I really just want to get this bike on the road for the summer and carefully pick the parts out for the transmission so I am ready when its time or if it breaks.

My mechanic is trying to convince me to replace everything now but want to do the transmission myself. He also is concerned my starter can't do the higher compression, the clutch won't handle the extra power and that my belt will explode. My starter motor is the same as the ones in the Kymco 200i, which is a 180cc moter... so it should be fine. The clutch and belt should last through the summer and if they don't, I really want to do the work myself (I just barely knew enough to not attempt the engine bore myself... but I do think I can do the transmission).

Do I need to replace the pulley? or any other parts of the transmission?


12
Super 8 150 / Re: Big Bore Kit
« on: July 01, 2015, 11:15:57 AM »
So you are recommending a new carb then and not just rejecting the original. Is there a difference in quality from fleabay to Naraku (they make a 24mm carb) and I have seen a 30mm molossi carb... A whole lot of fleabay though. Prices for "quality" brand is around 120ish. I was considering the Naraku bcz the whole top end is Naraku... But the Malossi is bigger...

As far as exhausts go, the two brothers is slightly lower pitch. I like it a little better for sound and I couldn't care less about how each looks as I would be happy with either look. My Kymco is yellow and blue and the power tip for the Two Brothers comes in gold... And I can get torx screws in blue continuing the theme a bit. It's stupid but I am way past that point with this build. The new header will be stainless but I will still need to have the bracket cut and rewelded.

This winter rebuild might be done in time for winter...

Since I have the top end mostly wrapped up, I will be doing the clutch, rollers and variator in winter. I see Malossi mentioned well in these forums. I need a quality brand. Is Malossi my best bet for quality?


13
Super 8 150 / Re: Question from new rider?
« on: June 25, 2015, 06:42:34 AM »
There is an app for that... it's called California Drought.

14
Super 8 150 / Re: Funny noise when first taking off.
« on: June 25, 2015, 06:41:13 AM »
Every single bolt I have removed I have used loctite if its on the engine, or clear silicon on the body to put back on... I have found far too many bolts loose and they get loose very quickly/suddenly once they have been removed once.

15
Super 8 150 / Re: Big Bore Kit
« on: June 25, 2015, 06:38:18 AM »
The new head on the cylinder changed the angle of the exhaust mount... now the existing exhaust won't mount and trying to find an after market exhaust to fit the Super 8 150 with a Naraku head is something else.

Any suggestions for new exhausts? I am going to a muffler shop that might be able to cut the exhaust mount and reweld it or make a new exhaust tube but none of that changes the muffler. Is the Yoshimura or Two brothers worth it? I want performance but still need to be relatively quiet in my neighborhood.

Also, I will need to change the ports on my carburetor for the new piston and exhaust. Can the ports be changed or should I plan on purchasing a new carburetor?  What is recommended?

Help is appreciated.

FYI: I am going to change the air intake... a simple change while I have it apart... to increase the air flow into the carb. All that is left is clutch, variators and rollers... Anything else?

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