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Author Topic: Super 9 lc tune up changing top speed rpm  (Read 8368 times)

GVH

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Super 9 lc tune up changing top speed rpm
« on: May 11, 2014, 02:22:12 PM »
OK just picked up another Super 9 LC. It has ben sitting 2 years but fired right up with a new battery and fresh gas. I'm looking to do a full tune-up on it. I'm interested in variator, weights, belt, splug and tires. 

I have Shinko SR006 Radials on order. One thing I have noticed is the lack of a rev limiter. The scoot will race to 75 or 80 kph but redline is 70 kph. Down a big hill with out realizing I had the revs past 10,000 and the speedo well past 80. I do have 2 problems. Rear brake is hard On or Off no feathering but works and it is a little hard to start after sitting for a few days. Cranks for 10 secs to bild up.





 
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GVH

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Re: Super 9 lc tune up changing top speed rpm
« Reply #1 on: May 11, 2014, 11:52:13 PM »
OK tried bleeding the rear brake caliper but it didn't help with the sticky lever feel. Then I decided to remove the rear caliper and look for signs of rust on the piston. Didn't see any. Now the fun part. When I try to put the caliper back on it does not seem to line up correctly. With the 2 bolts snugged up tight the caliper is pinching the disk and the rear wheel is stuck tight. WTF this is pissing me off. I'm not sure what is wrong now. After trying many things including spacers to properly line up the caliper and not pinch but the lever goes to the bar with the extra space.

Now I wonder if the last owner tried to fix this and screwed it up.   
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zombie

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Re: Super 9 lc tune up changing top speed rpm
« Reply #2 on: May 12, 2014, 01:22:19 AM »
No... You did. it sounds like the caliper/piston(s) are binding

Take it off completely. Stuff a rag between the piston(s), and the housing, and use compressed air to "blow the piston(s) out. That will show what is happening inside.

Clean it all up or replace whatever is bad, and reinstall the caliper. Use the air again to squeeze the pads tight, and re connect the fluid line. Open the bleeder, and fill the reservoir, Squeeze the lever, and look for air bubbles coming from the tiny holes inside the Res. and keep refilling till fluid comes out the bleeder. When it starts to come out close the bleeder, and keep squeezing until it starts to "firm up" Once firm squeeze, and hold. Open the bleeder and expel any bubbles. Tighten the bleeder and release the lever. Repeat that till it works right.
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supercobrapaul

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Re: Super 9 lc tune up changing top speed rpm
« Reply #3 on: May 15, 2014, 03:50:26 AM »
Hi GVH . Nice Scoot. What cdi do you have ?
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GVH

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Re: Super 9 lc tune up changing top speed rpm
« Reply #4 on: May 15, 2014, 04:51:13 PM »
Thanks. Looks good from far but loads of scratches up close. Not sure what cdi but no rev limit on it. No time to deal with the rear brake until next week. This is a pic of my other Super. I had decided to sell the red one as I had not used it for a year. I delivered the red one to the new owners requested shop and found this blue for sale a few blocks away.   



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GVH

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Re: Super 9 lc tune up changing top speed rpm
« Reply #5 on: May 25, 2014, 05:39:15 PM »
OK mister caliper is much more capable now. The 2 pins didn't want to slide. Disassembled the caliper and the piston worked fine so just greased the sliders and all seems good. Took for ever top bleed to a nice stiff feel. Still waiting on tires. 
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BettinANDlosing

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Re: Super 9 lc tune up changing top speed rpm
« Reply #6 on: May 25, 2014, 07:24:44 PM »
Sounds like you need a new belt, shouldn't do 10000rpm at 80kph. Also if it sat for two years do yourself a huge favor and take the carb apart clean all passageways will start up first crank!
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GVH

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Re: Super 9 lc tune up changing top speed rpm
« Reply #7 on: May 29, 2014, 05:39:37 PM »
OK new tires are in. Decided to take the rims off myself to save money. 2 Rachet straps from a chain on a metal I beam. Floor jack to help stabilize it. Glad I have air tools at work. Picking up wheels in a few hours.

« Last Edit: May 29, 2014, 05:44:11 PM by GVH »
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zombie

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Re: Super 9 lc tune up changing top speed rpm
« Reply #8 on: May 29, 2014, 05:55:17 PM »
LOL!!! I just kick mine on it's side. ;D
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BettinANDlosing

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Re: Super 9 lc tune up changing top speed rpm
« Reply #9 on: May 30, 2014, 01:21:35 AM »
Kymco Hover 9
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2001 "Yamaha" Zuma AKA MBK Booster; MHR OverRange, Dellorto 19mm BHBG, Polini "big" intake, RS-3 Rear shock, Stock cylinder.

GVH

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Re: Super 9 lc tune up changing top speed rpm
« Reply #10 on: June 08, 2014, 01:14:47 PM »
OK just over 500 K on the Shinko tires SR006. So far love them. Any tires would be better than the stock 2007 ones. But even in a decent rain they stuck great. Time to start on the carb clean up to help the starting issue. Check the By Starter to.   
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wordslinger

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Re: Super 9 lc tune up changing top speed rpm
« Reply #11 on: June 09, 2014, 11:27:28 PM »
Quote from: zombie on May 29, 2014, 05:55:17 PM
LOL!!! I just kick mine on it's side. ;D

..gotta admit, that was creative!   8)
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zombie

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Re: Super 9 lc tune up changing top speed rpm
« Reply #12 on: June 10, 2014, 01:06:09 AM »
Sex swing for the scoot. I wonder...
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wordslinger

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Re: Super 9 lc tune up changing top speed rpm
« Reply #13 on: June 10, 2014, 08:17:36 PM »
..for having sex, with...or on the scooter...

I can't decide....
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zombie

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Re: Super 9 lc tune up changing top speed rpm
« Reply #14 on: June 11, 2014, 01:19:08 AM »
I figure mine F'd me often enough... Let's see how that shoe fits the other foot.

Gotta get some supplies:
Hammer
Duct Tape
Lye
Shovel
Fake ID (just in case)
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