|
Enduro Intake/Carburetion - 2 stroke Jetting, Reeds, Air Filters, etc. |
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
36mm or 38mm ??
All right "experts" Here's one for ya, How do I tell what carb is on my '10 300. Is it a 36mm or a 38mm. And which one works better? Thanks!
|
#2
|
||||
|
||||
Not an expert or even close.
If your 2010 came with the PWK ASII it will have a smaller bowl than the older models and a flat metal cap which is held down by 2 screws. On the top of this cap will be a circle with a number printed in it. 36/38. If its the older style with the screw cap odds are it is a 38mm. Not sure if anyone reported 36mms sneaking through with these. Think it was more a 2011 thing actually. The KTMs use 36mms so you can get it to work for you. It will flow better at lower velocities. Smaller openings. Will sign off a bit up top. The opposite for a 38mm. Ideally you'd want an oval bore to get the best of both worlds. Thats what I'd be doing if I had a 36mm. |
#3
|
||||
|
||||
The pwk as11 is also known as pwm and looks like this
http://www.keihin-us.com/am/products/pwm.php If you have it on a 300, consider yourself lucky believe it or not, it adds punch and as jakobi says, get it oval bored to 39 mm or get your squish corrected and it has plenty of top end, infact if your in the us, get the rb head mod before you do anything as its the cheapest mod and it will prolly be enough unless you ride desert long haul only!
__________________
Oz Current. 2015 ec300r estart, 98 RM 125 2013 Ec300r 2011 Ec300e 2009 Husky TE310 1982 XR500 Honda 1981 KE100 Kawasaki 1978 GT80 Yamaha |
#4
|
|||
|
|||
Big THANKS guys!
It appears as though I have a PWM38 on my bike. So, this is supposed to be a good one? Is there much difference in jetting it?, or is it pretty much the same as any other 38mm GASGAS 300 carb? |
#5
|
||||
|
||||
Dig through the carburetor sub-forums - there is a wealth of information there. Just beware that the 2011 established a new baseline in jetting, so you'll need to be careful that what you're reading is applicable to your model.
__________________
Steven Beane #275 PlusOnePerformance - Superior Service the World Over - Dearborn MI AMA District 14 (Michigan) Officer afterhourscycle.com Michigan's Beta and TM Race Headquarters |
#6
|
||||
|
||||
Quote:
My bike is a 2010 EC300 running the same PWK ASII/PWM 38mm. As stated jetting section has many threads, and my findings are about the same as those running the 2011's. Then again my bike was shipped as a 2010 Euro but around the same time as the 2011 EC300 Kicks. Same everything except for headlight and fender. Euro came with Ohlins shock and different valving in the forks. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
2011 250, 36mm jetting | MrBlah | Enduro Intake/Carburetion - 2 stroke | 3 | 09-26-2011 07:53 PM |
36mm on 300 | iancp5 | Enduro Intake/Carburetion - 2 stroke | 10 | 11-16-2007 09:23 AM |