Go Back   ChinaRiders Forums > Technical/Performance > Pit/Pocket Bikes & Scooters
Register FAQ Community Calendar Today's Posts Search
Reply
 
Thread Tools Search this Thread Display Modes
Old 10-08-2011, 10:41 AM   #1
CVK81   CVK81 is offline
 
Join Date: Oct 2011
Posts: 4
I got a scooter

I picked up a 2006 JM Star 150 something or other, see pic below. I think I got a pretty good deal on it, it only has 770 miles. I would like to run thru it tomorrow and change all the fluids, check all the nuts and bolts etc. I have done a little research already, and think I should pick up an NGK C7HSA spark plug and 10w30 oil. I am not sure about what type of gear oil I should pick up? Any advice on this would be appreciated. thanks.


 
Reply With Quote
Old 10-08-2011, 11:07 AM   #2
Weldangrind   Weldangrind is offline
 
Weldangrind's Avatar
 
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
Welcome! I use Castrol 75W90 Syntec synthetic oil. Synthetic 10W30 in the engine is also a good idea.

That looks like a decent exhaust system; do you plan on any mods?
__________________
Weldangrind

"I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer


 
Reply With Quote
Old 10-08-2011, 12:17 PM   #3
CVK81   CVK81 is offline
 
Join Date: Oct 2011
Posts: 4
Thanks fir the quick reply. I think that is just the cheesy factory exhaust. I do plan some mods, already have a sturdier trunk to put on it off one of my motorcycles. Also the mirrors are worthless, anyone know if they take a standard motorcycle mirror thread?


 
Reply With Quote
Old 10-08-2011, 02:09 PM   #4
katoranger   katoranger is offline
 
katoranger's Avatar
 
Join Date: May 2007
Location: Altamont, Kansas
Posts: 15,103
That is the correct spark plug. $2 at Oreilly.

The mirrors will probably be a smaller thread size 8mm or 6mm.


 
Reply With Quote
Old 10-08-2011, 03:43 PM   #5
Weldangrind   Weldangrind is offline
 
Weldangrind's Avatar
 
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
You could always drill out the rivets and pull the muffler apart. Perhaps you could creatively free up some power.
__________________
Weldangrind

"I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer


 
Reply With Quote
Old 10-09-2011, 10:49 PM   #6
CVK81   CVK81 is offline
 
Join Date: Oct 2011
Posts: 4
First day on the scooter she runs like a champ. Roade about 60 miles after engine oil gear oil and spark plug change. At least I think it's about 60 miles. I'm pretty certain the speedo and odometer both read in kilometers. I was able to track my MPH with my iPhone. Steady 50mph into a headwind, 58 with the tailwind. I think that's a pretty good baseline. Couple other things I noticed was the vibration at top speed. It feels like the tires might be flat spotted. The tires are from 2006 and this scooter only has 750 (850 now) kilometers. Also, can anyone recommend suspension upgrades? Are those'racing' shocks on eBay worth buying? I'm planning on replacing the shock oil with something heavier and possibly removing the abs unit on front brake.


 
Reply With Quote
Old 10-09-2011, 11:06 PM   #7
Weldangrind   Weldangrind is offline
 
Weldangrind's Avatar
 
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
That's a decent speed. When I want heavier fork oil, I simply use Castrol 30W non-detergent. It's easy to find at the local parts store, and it's cheap as chips.
__________________
Weldangrind

"I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer


 
Reply With Quote
Old 10-10-2011, 12:15 AM   #8
CVK81   CVK81 is offline
 
Join Date: Oct 2011
Posts: 4
Quote:
Originally Posted by Weldangrind
That's a decent speed. When I want heavier fork oil, I simply use Castrol 30W non-detergent. It's easy to find at the local parts store, and it's cheap as chips.
Cool. I have 15w left over from motorcycle forks. Was going to try that. How much do you weigh, if you dont mi d me asking. I am 175 and am worried 30w will be too stiff. Thanks.


 
Reply With Quote
Old 10-10-2011, 01:28 AM   #9
Weldangrind   Weldangrind is offline
 
Weldangrind's Avatar
 
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
Not sure, but my guess is 220 these days. I don't have a scooter, but I just changed the oil in an old set of forks on an XL250S, and they feel perfect to me with 30W.
__________________
Weldangrind

"I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer


 
Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:36 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.