Junior
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Post by 4950cycle on Oct 6, 2012 18:49:14 GMT -6
If you live in a big city where your whole life can have a top speed of no more than 45 MPH tops. A 50-70 cc could do this if the rider is lets say not over 225 lbs.. But if you live in an area where it is semi rural and you have to take a 55-65 mph speed limit two lane hwy. just to get to a convenient store and anywhere else you might go a 50 cc will shorten your life span. And the people around here (Tampa and 100 miles around it) are sociopaths so forget about the bike lane thing. They simply do not care if they kill you being neglegent in the driving of their car. Weather it texting or just driving like a pushy asshole. So its 250 cc and up for me
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Junior
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Post by 4950cycle on Oct 6, 2012 7:35:46 GMT -6
 I was just messin with ya cause you were takin your time getting back with an answer . How many ponys you think you are puting out now ? I would soup up her engine with the bigger 300 (290 cc) head if this whole scooter / smaller motorcycle thing in my family wasn't primarily for getting more than twice the miles out of a gallon of gas. I have had fast bikes with bunches of head work done and first thing I noticed is speed ain't free. And once they were made to go like hell, you noticed it real quick they gobbled gas.
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Junior
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Post by 4950cycle on Oct 5, 2012 11:21:27 GMT -6
Hey , Allyoop, Do you know what motor is in your scoot or no ?
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Junior
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Post by 4950cycle on Oct 4, 2012 9:55:24 GMT -6
Also ! I just niticed. Looks like you have a CF moto engine better known as the CN 250 (Honda clone) instead of a Linhia (Yamaha clone) is your cylinder more upright instead of laying forward (almost horizontal) ? Am I correct ? I might be totally wrong. It might even be a GY6 150 ?
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Junior
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Post by 4950cycle on Oct 4, 2012 9:43:23 GMT -6
Who offers all these gear sets for these Linhia 250 motors Ally. This is a nice thing to know about these. To be able to customize your final ratio like that is a luxury for a belt driven vehicle. And BTW, How much $ per gear set ?
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Junior
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Post by 4950cycle on Oct 3, 2012 23:21:04 GMT -6
So your going for taller gears or shorter (quick) gears in this trike Ally ? Looks like your trying to make your scoot quicker (less top end). Probably to pull that extra weight of your three wheel setup better ?
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Junior
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Post by 4950cycle on Oct 3, 2012 22:04:41 GMT -6
Put the exhaust back on, put the airbox back on, reconnected some electrical connections and connected the battery for a centerstand running test. She stammered a little at first. But after I got it used to running again it runs great. Starts within a turn or two of the motor everytime cold or hot. Runs solid at every RPM range. And last but certainly NOT LEAST ! Doesn't STALL no matter how you treat the throttle or how hot or cold it is. Just wish I wasn't one of the unlucky ones who got this JCL with one of the Linhia's with a faulty starter clutch. Remember, this scoot only had 750 miles on it when this failed. Jeff at Mudville scooter and small engine repair said that the starter clutch is a weakness in the Yamaha YP 250s and these Linhia Yamaha knock offs. Now I have to figure out how to fix the ignition that cuts out for no apparent reason on and off.  |
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Junior
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Post by 4950cycle on Oct 3, 2012 21:45:29 GMT -6
I closed her all up and let the RTV cure for 24 hours empty. Filled the crankcase with a little over a Qt of oil. And let it sit overnight with a piece of clean cardboard under it to see if she leaked so much as a drop. Success, Not a drop of oil on the cardboard the next morning. ;D Attachments:
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Junior
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Post by 4950cycle on Oct 3, 2012 21:33:27 GMT -6
I meant to post this pic before the pic on "MY" post before this. You can kind of see the new starter clutch I bolted the flywheel to after putting it on first (the starter clutch). That is the way it should be done I found out . First put the starter clutch on the shaft. Then bolt the flywheel to it with the three allen bolts. And handle the key and keyway on the flywheel accordingly. Make sure you use the same holes that the allen bolts were already in. I noticed my flywheel was balanced and putting the allen bolt in different holes than before might make it slightly out of balance. If you have a problem with the crank shaft trying to spin when you tighten the allen bolts open up the timing chain cover on the other side of the motor (same cover to do your valve adjustment with) and stop everything from turning by sticking a screwdriver in the timing chain and sprocket . Attachments:
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Junior
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Post by 4950cycle on Oct 3, 2012 21:13:06 GMT -6
This is a pic of the flywheel , Starter clutch and the stater in the cover to the side. As you can see I have put blue RTV around the base of gasket where it was broke in a couple places. This will hopefully help in makeing the case oil tight. Remember, this is a part of the crankcase that holds all your oil. I bolted the cover on right after this pic. Attachments:
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Junior
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Post by 4950cycle on Oct 3, 2012 19:34:02 GMT -6
Oh, I forgot that on those trike scooters there are sprockets mounted off a jackshaft type thingy. So you have the luxury of being able to change your final ratio. I read your post over again and realized what your fraction like numbers meant. PS I am posting end pics of starter clutch project in just a minute. |
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Junior
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Post by 4950cycle on Oct 2, 2012 20:35:30 GMT -6
Next time I won't be so lazy and I will follow your advice on the home made gaskets.  Got the motor all buttoned up. RTV hopefully cured now and filled it with oil. Letting it sit over night with a clean piece of cardboard under it. This way I will see if it leaks so much as a drop of oil. If no leaks , I will post the couple end pics and start puting the scoot all back together again. |
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Junior
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Post by 4950cycle on Oct 2, 2012 7:52:31 GMT -6
You ain't kiddin, Always Drama with these guys ( we know who we are speaking of ) ; Different ratios inside Hhaa. I like it. Didn't know they offered different gear sets for these. Right now my girlfriend's JCL 250 seems to have almost perffect ratios for the job at hand. If I can keep it running.  Next I'll have to pull the whole front end apart on it to find out why the ignitions cutting in and out ! But so often I run into the wrong ratios for the job at hand on two wheeled vehicles. Got lucky again though, I have a Ninja EX250 I'm slowly converting into a trike for my Dad. Since it was geared from the factory to pull a respectable 1/4 mile time for the motorcycle reviews in the magazines to help promote them, It has almost the perffect gearing also for a trike with a heavier load. One less thing I have to customize on it for the job.  |
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Junior
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Post by 4950cycle on Oct 1, 2012 22:25:08 GMT -6
Well, this is going just like the usual. I got my gaskets today from Motopartsmax.com in the mail. I only needed one of the gaskets for this repair and it was all broken up in the package. I was so mad  . This project seems to have been going like this from the start. Every vendor besides Absolutely scooters has been an idiot. This one (Motopartsmax.com) sent a set of brittle Chinese gaskets in a very flexable padded minilla envelope. Well, need I say more. Anyway, I don't have time to send stuff up and down the road anymore. So I'm going to use the gasket broke completly through in two places and try to make it work with blue RTV in the damaged areas of the gasket. Especially on the bottom section of the case cover where it has to contain the crankcase oil. I will fill it with oil after the RTV cures tomorrow and will leave it for a night and make sure the motor doesn't leak oil. Then the centerstand running test to make sure all my fixing was sucessful. Then I will start puting all the plastics and such back on the scoot. Tomorrow I will post some pics of the new starter clutch on motor right before the cover went on this afternoon. |
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Junior
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Post by 4950cycle on Sept 30, 2012 14:26:20 GMT -6
Exactly Ally, Hey , if this thing won't run that good with this setup. I'll be the first one piping up about it. I know I hate it if I follow internet advice and its bogus. I don't want to do this to someone else. Let me say this though. I just remebered My 1975 Over head cam (just like linhai) Honda CB 125cc. When I bought it a couple years ago the bike it sounded like a sewing machine at idle. It bugged my friends more than me. The bike ran fine anyway. But I adjusted the vavles per peer pressure. .004 and .006 btw is what the specs were . Turns out the previous owner adjusted the valves per what he read on the internet that were the specs for one of those Honda 125 engines over in India that are "OHV". = close to double the valve clearances needed for Honda OHC engines. I know this because I called him and asked him why the valve clearances were so large before I corrected them . But the bike was running fine before I adjusted them per OHC Honda specs. I don't know if this means anything on this application ? But it might be some indicater.  PS When my gaskets get here I will post the pics of the open side before I put the cover back on. Really not much if any different than the pics of it coming apart though. |
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