|
|
Post by millsc on Jun 29, 2013 20:45:41 GMT -5
I installed my buford stock combustion chamber special made big valve head I'm running it with and a9 cam stock size carb and stock muffler it made a huge difference gained at least 10 mph got my hoca 18 46 gears hipro exhaust and 24mm carb on the way this one is gonna be a beast its faster than my white galaxy as of now
|
|
Sophomore Rider
Currently Offline
Posts: 114
Likes: 0
Joined: Feb 24, 2013 10:04:01 GMT -5
|
Post by dude on Jun 29, 2013 23:36:17 GMT -5
Tell us more about the 38mm big vavle head?
|
|
|
|
Post by skuttadawg on Jun 29, 2013 23:56:23 GMT -5
I though the 139qmb was 40mm with some valves 64 or 69 . MillSC did you get a TaoTao Thunder ? A buddy just got one . It looks sharp with modern design and LEDs , rides good with 12s and dual rear shocks but man it is sooooo slow and wimpy . My TaoTao ATM had to have 2HP more than this scoot . I got to ride it with only 16 miles on it and I put over 50 miles on it riding around the block and going up and down in the midrange to do a midrange break in but still being easy on it as I like to get on the midrange more after the 250 mile oil change . I feels like I need to adjust the barrel on the throttle cable like its not opening up enough . For sure needs lighter rollers and upjetted as it is out of the crate stock except dealer done oil and gear lube prior to him getting it .
I want to get him the Air Sal kit since this puppy has no bark but ask what size and brand of carb to get for it . May try to reuse the stock head but may opt for a 50mm head depending on his budget
|
|
|
|
Post by triker on Jun 30, 2013 2:18:37 GMT -5
Tell us more about the 38mm big vavle head? It is basically a stock head with larger valves and seats installed. The intake valves are 22mm and the exhaust valves are 17mm. The intake and exhaust ports are ported. The head I have has the shorter 64mm valves. Roy |
|
Sophomore Rider
Currently Offline
Posts: 217
Likes: 22
Joined: Mar 3, 2013 8:42:52 GMT -5
|
Post by buford1488 on Jun 30, 2013 7:19:17 GMT -5
hey bud.....did you get the compression down?
|
|
Sophomore Rider
Currently Offline
Posts: 217
Likes: 22
Joined: Mar 3, 2013 8:42:52 GMT -5
|
Post by buford1488 on Jun 30, 2013 7:27:10 GMT -5
i did a experiment the other day well a coulple weeks ago with a piston on a 50mm head on my buddy's scoot. i got a reading of 229. lol he couldent even kick it over..to make a long story short we got it started ran wicked but i turn'ed it off was really really nervous about it..it was just a funny experiment i wanted to see how high i could get one and to see if it would run..............funny as crap though seeing him try to kick it over!!!!  |
|
|
|
Post by millsc on Jun 30, 2013 7:48:19 GMT -5
Compression is 205 it starts just fine and runs awesome
|
|
|
|
Post by millsc on Jun 30, 2013 7:54:06 GMT -5
Airsal a9 cam and stock combustion chamber big valve head is the way to go only using one base gasket tons of power
|
|
Sophomore Rider
Currently Offline
Posts: 217
Likes: 22
Joined: Mar 3, 2013 8:42:52 GMT -5
|
Post by buford1488 on Jun 30, 2013 9:49:23 GMT -5
good deal mill giver heck !!!!!!! let's see who is gonna say thats to HIGH first....lol  |
|
|
|
Post by millsc on Jun 30, 2013 11:57:03 GMT -5
Its a new scoot only 55 miles on it compression will drop after break in
|
|
|
|
Post by PCBGY6 on Jun 30, 2013 14:17:29 GMT -5
I installed the airsal with two base gaskets and it starts fine off the battery. Tried kick starting it and broke a tooth. D8
|
|
|
|
Post by millsc on Jun 30, 2013 14:21:17 GMT -5
Im running one gasket a9 cam stock combustion chamber on both no starting issues on either
|
|
|
|
Post by PCBGY6 on Jun 30, 2013 14:29:34 GMT -5
I should have also included that my CDI went bad and that was why i was using the kick starter. after about the 7th try is when it broke the tooth. I can tell a huge difference in kick starting it with the 50mm kit on it.
At this time I'm running the 50mm kit with stock cam and head. I plan on ordering the A9 cam next week and the head in a month or so. How much difference will I notice with the A9 while running on the stock head?
|
|
|
|
Post by millsc on Jun 30, 2013 14:44:39 GMT -5
the a9 works best paired with the big valve head I have an ncy a9 on my white one with stock head not any noticeable gain but the a9 with big valve head makes a huge difference
|
|
|
|
Post by PCBGY6 on Jun 30, 2013 14:52:25 GMT -5
Thanks for the info. I can just wait and order both at the same time then.
|
|
Main Jet
