15 gram sliders in a Linhia 257cc (260) By 4950cycle (Read 1,265 times)

[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.

[ellpee]

I had the Honda clone, not the Linhai, and never changed the weight of my sliders, but have read here that one way you get more acceleration but less top end, and the other way vice versa. Problem is I don't remember which way -- lighter or heavier -- does what. Somebody here will respond, I'm sure, or you might try searching this classroom's posts for "sliders" or "rollers". Should get lots of hits.

[4950cycle]

Hey, At least you had something to say ! Everyone else seems to be a bunch of Lurkers. Yea, I know which one does what. Hell, I even know how to take a light slider / roller and make it heavier now since I have studied scooter CVTs so much lately. But it will cut down on my research / mechanic work if someone can tell me about their experiences with rollers / CVT work / adjustments with my particular drivetrain with their body weight stated.

[4950cycle]

So far it looks like it fixed the problem (Fuel pump). Then put my scooter up on the center stand and took it up to the rev limiter a couple times to find out where it topped out. The RPM went up to about 8400 without breaking up at all. Any higher and the RPM was unstable. But it would go up to about 8700 as indicated on the not so precise scooter tach. What that means is I might get my 5 mph on top if my variator isn't maxing out already. And 16.7 HP will haul my 260 lbs any faster than it already will go. While I've got the belly and side exposed I am gonna do a much needed valve adjustment. " Again " About the 4 th one I've done. "THEN" next on the agenda will be that Marking the inside of the variator test we talked about

[ellpee]

Try the search. Many, many have posted before on this subject, and possibly just don't want to be answering the same question over and over. But yes, it's been pretty quiet here lately, a lot of the regulars must be enjoying their summer in other ways.

[crwford]

my Ice Bear Zodiac 300 cc had 14 gram sliders it seems perfect to me on all 3 of mine. The engine is about the same as yours

[4950cycle]

Aug 19, 2016 9:21:34 GMT -6 crwford said:

my Ice Bear Zodiac 300 cc had 14 gram sliders it seems perfect to me on all 3 of mine. The engine is about the same as yours

Did it increase your top speed any if you can remember.

[4950cycle]

Got detoured on my little project. My fuel pump quit so I ordered another one . New fuel pump would starve out the motor at about sustained 60 mph running. I can't understand why because when I pulled the hose off the carb so I could turn the motor over and see how much fuel it pumps with each engine vacuum pulse it pumped plenty to run a 250. Hell, It looked like enough to run a car ! So anyway I put another new fuel pump I have on the scooter, Adjusted the exhaust valve while I was right in the area of the belly. Started her up with no issues. In a tuck it will get my 260 lbs butt up to about 71. But still couldn't go any faster than 64-68 one up top speed. I may put that 32mm carb I got in the mail today on tomorrow. I hope it won't become a nightmare to make run right.




Read more: scooterrebels.proboards.com/thread/2676/miles-hour-257-linhai-jcl#ixzz4Hw8ffDzv

[4950cycle]

Well, I put in the 32 mm carb today. Lost some acceleration and gained ZIP / nodda on the top end. It has a main jet the size between a #56 and 57 drill bit. I know because I checked. The seller said it is a 150 main jet (no markings) I think. I will at least have to back off to a 138 Main jet. I would bet money I'm running rich. Havn't checked the plug yet. Got dark on me. BTW I bet this 32mm carb is no more than a mm bigger than the Japanese made stock carb. Definitely do not buy one of these. Just mod your own. Save $100

[crwford]

As far as my sliders my Zodiac 14 grams round changed it to sliders improved speed quicker but doesn't seem any faster I hope this will answer your question. Do I feel money worth spent yes and no. Quicker speed to keep up with my friends Harley but then two he shifts which may be the reason.

[4950cycle]

Aug 22, 2016 11:33:37 GMT -6 crwford said:

As far as my sliders my Zodiac 14 grams round changed it to sliders improved speed quicker but doesn't seem any faster I hope this will answer your question. Do I feel money worth spent yes and no. Quicker speed to keep up with my friends Harley but then two he shifts which may be the reason.

Thanks for the info. I think I might get 13 gram sliders. This way they won't be to heavy for good acceleration , But will be heavy enough to bring my variator to full diameter at top speed. If it was rollers I would probably need to go a little heavier since they bring the variator out to full diameter with less efficiency I've been told.

[4950cycle]

I feel I should cap this 32 mm carb fiasco off with this. Get this, After all this I put my 115 main out of my old Jap 30 mm carb in the new 32 mm , New carb ran great then ! But no better readings from the tach and speedo than my old carb. I think it had a sleight edge on my old carb in the mid range. But not enough difference to change much. So what that means is if they will take this 32 mm back I want a refund. And the old Jap 30 mm goes right back on with no more than one jet size higher or lower than stock. Hell, It might even run the best with this 115 main jet it came with.

[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]

Now going in another direction which would be better acceleration . I would think that could be done simply by going a gram or two lighter on rollers or even better sliders. And I would bet you could still achieve full contraction on the variator which would give you your same top speed as before the weight change as long as you don't go to light on the rollers / .sliders

[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.

Read more: scooterrebels.proboards.com/thread/2683/gram-sliders-linhia-257cc-scooter?page=1#ixzz4KaF4iN6n