15 gram sliders in a Linhia 257cc (260) scooter

[4950cycle]

I am asking if anyone ever put 15 gram sliders in their Linhia 257 cc scooter ? And if so could you tell me the effects they had on your scooter good or bad. Or , If you have experimented with any weight sliders and feel like posting your scooter's loss or gains it would be greatly appreciated and enlightening to some of us.

[4950cycle]

I guess no one ever did this on the 257cc Linhia ( It's hard to believe) . I guess I will buy some 15 gram sliders and see. Or go up a half a gram at a time by mixing them. For instance, If I have 14 gram "rollers" stock I'll put in four 13 gram "sliders" and four 15 gram sliders. This will give me an average increase of a half a gram + rollers to sliders. But first I will put my 32mm carb on it to see if that helps. I believe you should only do one motor upgrade at a time to be able to tell which one made the noticeable difference. PS Still listening to advice.

[4950cycle]

Forget the 32 mm carburetor unless your going all the way with at least a performance exhaust and a pod K&N style filter, If not even a cam. I myself could not make my motor produce any more power than with the stock carb with stock 115 main jet. Just a bigger jetted up carb will not help you gain any HP. In fact it made my 257cc Linhia put out less power with a slower top end. Even running with no air cleaner ( for test purposes only) and IMO my stock exhaust breathed pretty good. A couple of the members from this forum and other scooter forums warned me I was wasting $ and time. But I can be a hard head. So the moral of the story is. If you want any other power characteristic than what your scooter already has start with your CVT. First thing I've been told is sliders. I will keep you posted with this next plan of action of changing my rollers to sliders of course after doing the magic marker test on my variator.

[4950cycle]

Took me a while to get the scoot running good . No sense in worrying about sliders and rollers if the engine isn't even running good. Had to adjust valves and drill a vacuum fitting out that was restricted I believe. I did something right because it runs right again. Anyway, I have the variator cover off and the the variator marked real good. It doe's seem to have a weak spring on the clutch to. I can move it in and out fairly easy. Should it be like that ? A stronger spring would give me real good take off and low speed power. But I don't want it to keep my variator from letting my belt go all the way out either at top speed. But one thing at a time. First the variator check.

Read more: scooterdoc.proboards.com/thread/13015/gram-sliders-linhia-257cc-260#ixzz4J33ahFYh

[4950cycle]

I took apart and cleaned my stock 8 yr. old Jin Bo fuel pump because it stopped working a couple days ago . I ordered a new fuel pump of the same make and it showed up today. The old one worked after I took it apart and cleaned it up and the scoot ran good, even at top end. But today I went out to start it up to test my marked variator and the fuel line was dry AGAIN. And I couldn't get it to pump fuel (see through line) as I cranked it over. Then this tropical storm finally got here to north central FL. and stopped the whole show for the rest of the day and probably tomorrow too. It's a real big slow, slow moving storm. When it finally quits I will throw this new fuel pump on and hopefully it will solve my new fuel supply problem. Then I will test my marked variator. I have my JCL all stripped down with my variator cover off even. I can't wait to test it and then pull my variator apart to weigh my rollers to see which way to go on slider weight..

[4950cycle]

Turns out I have 14 gram rollers and my belt went out to an 1/4 of an inch from the edge of the variator at top speed (67-68 mph right now). So I guess I will go to 15 gram sliders instead of 14 gram rollers. Unless someone thinks I am waisting my time with good reason ? I'm 260 lbs. and am 6'2. I may be getting all the 257 cc Linhia can deliver already ?

[Rebel]

Go for it, I think you should be able to go 75 on it. I could be wrong but unless you try you won't know. If you have a spare pile of money you could install an after market efi and see how that helps.

[4950cycle]

Halt on getting sliders or rollers to get more top end on a Linhia 250-300 cc. Turns out the results from my variator marker test ( the point my belt came out to on variator ) is as far as my variator will go for top end. Heavier sliders / rollers can not overcome the mechanical road blocks that are built into my Linhia 257 cc variator after I took a super close look at how it works . "BUT" with some modification to the variator I'm expanding the diameter that it can push the belt out to. So that's why no one would tell me on any of the forums how the slider mod would help or it turns out " Not " help me to get more top end. 15 gram or any other slider weight can not increase top end until you do these couple of simple mods to the variator. Sorry, no pics yet because my camera is down and my cell doesn't take pics, But soon though if anybody is interested. Best of all it cost no $ if you have the right shop tools around.

Read more: scooterdoc.proboards.com/thread/13015/gram-sliders-linhia-257cc-260?page=1#ixzz4KTB0Gje4

[4950cycle]

My idea worked on the variator. I worked on it late yesterday afternoon and today. Finally by nightfall tonight I got the modded variator back on the JCL 250 up and running. Well... up and running on the center stand anyway. I wanted to do a static test first to see what the variator was doing and at what RPM. I got my belt all the way out now at about 6600 RPMs I believe. It was getting dark so I didn't see so good even with a drop light. I will redo it tomorrow. I drilled out 1/2 of the 14 gram rollers down to 12 grams. so I have an average of about 13 gram rollers. Truthfully I don't even need sliders now since I'm getting full range with these old beat up drilled out rollers. But I will still buy a set just to complete my refurbishing the variator dealy. The real test is will the belt go all the way out on the variator with my 264 lbs. butt on it. That will be tomorrow to see if I can get any more top end out of it.

[Rebel]

You need to post pictures and show us what you did to the variator.

[velociraptor]

Heck I can't see why not expiriment. When you have a scoot it makes it even more fun to know you made it your own whether a ton of work or even a little and it sounds like it's going well for you too. I remember we had a 1980s Honda elite 250 that made it to round 75 with my brothers butt on it I cant see why a 257 or so wouldn't.

[4950cycle]

Well, I gave it a run test and it only gained about a 1-2 mile per hour. And I lost a pinch of my Jack rabbit start / Hole shot ability. Now it gets up to about 10 MPH before it starts really scooting. Don't get me wrong, It's still plenty acceptable on take off. But it really used to jack rabbit out of the hole before. But, Just remember this was the very first test run. And it never attained 6500 rpm where my max HP is. For some reason I couldn't get it to climb above 6000 rpm at top speed. Can't explain this yet since I actually lightened my rollers which should have made me run higher RPM across the board. I did booger the rollers up a bit when I drilled those 4 I drilled. Maybe they are fouling up a bit trying to very my variator. So, Now I'll have to order those 12 gram sliders I had my eye on to see if that will make it all work ? PS I bet it would FLY LOW with somebody 170 lbs or less on it though right now. Remember I'm 274 lbs. and a head into the wind now.

[Rebel]

Hey, go on a diet if all else fails, would make you feel better to, sorry n my professional opinion coming out. Also personal experience having once been bumping 350.

[4950cycle]

That would probably be the best performance mod I could do to my scooter ! LOL

[4950cycle]

Now that I know that much more about my variator / clutch sheve syatem I decided to go way down in slider weight instead of way up. I believe I can reach full contraction on my variator with lighter sliders while gaining acceleration. I bought 12 gram sliders last night on Fleabay. Now its off to find out what the heck happened to my ignition system. I've got no dash lights and push button won't start it ? And yes my battery is great.