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Post by scooternewby on Jun 20, 2013 20:24:30 GMT -5
So I have a 1990 Yamaha Jog 50cc. (It's a Japanese import)
It starts great, runs great, it's fast and fun.
Going up hills?? Not so much! I can barely hit 40kph up hills.
I've owned lots of scooters, and usually when they've run this good, they fly uphill.
Any ideas??
Thanks!
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Post by domindart on Jun 20, 2013 20:32:21 GMT -5
mods... nuff said... well, nuff from me... I'm clueless on mods....  |
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Post by lykos23 on Jun 20, 2013 20:32:45 GMT -5
[replyingto=scooternewby]scooternewby[/replyingto]What's your torque spring rated at?
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Post by scooternewby on Jun 20, 2013 21:08:37 GMT -5
What's your torque spring rated at? That's a great question. The Jog is new to me. So maybe that's a great place to start Edit: Can you tell me a little about the different springs? From what I'm reading, there's 3 different types. 1000, 2000 and 3000?? Is that right? Would one or the other help me get up hills better without compromising the overall awesomeness of my scoot? Right now its grease lightning off the line! My 1990 Jog DESTROYS my 2003 BWS. (I actually traded my 03 BWS for this 1990 Jog) |
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Post by scooternewby on Jun 22, 2013 21:36:24 GMT -5
So does anyone know which torque spring would be best in order to not loose to much off the line, but help climb hills a little better?
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Post by mileage on Jun 22, 2013 21:39:19 GMT -5
roller weights might be worn out, or belt. or yo8ur clutch springs. tgats it normal usual stuff. whyile your getting new rollers, see what will give yo8u better with stock. maybe the clutch springs. go with 1000's rpms. for stock. and after a variator, put a contra in the clutch.
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Post by mileage on Jun 22, 2013 21:41:28 GMT -5
like some times lighter roller weights, a airbox restriction or something and a jet rejet, will desrestrict it, then some lighter rollers, well, it put sless weight on the engine. if its too light the engine won't have momentum. usually stock like agram drop in wegiths. like if stocks, 6 go to 5. somethign like that.
punch out airbox restrcition, upjet carb, lose mpgs, racing variator, and lighter rollers, and some springs, first the 3 springs, then after a variator, the contra, youll need it.
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Post by stepthrutuner on Jun 22, 2013 22:43:40 GMT -5
Start with the easiest procedure which would be lighter rollers. I suggest going down 1.5g/roller as a first step. Being that old, the torque-driver may need to be taken apart and re-greased so it will down-shift better on the hills.
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Post by scooternewby on Jun 23, 2013 18:00:52 GMT -5
So I think my issue has evolved into a whole new issue. Now, when I ride the scooter uphill, or at WOT, it cuts out all together. I'll be driving along, and then the motor bogs for just a second, then picks back up right away.
It's much worse when going up hill. It cuts out, picks up, cuts out, picks up. It feels like its going to die, but it just doesn't. It keeps running.
Then when I get to a flat, it starts running like Usain Bolt!
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Post by stepthrutuner on Jun 23, 2013 18:06:02 GMT -5
Poor fuel flow or weak spark.
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Post by scooternewby on Jun 23, 2013 18:58:41 GMT -5
OK, I'll start there! Thanks!
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