I was looking around EBAY at some random stuff. Started looking at Keihin Carbs. I saw a bunch of 39PWK carbs. Some from dirtbikes, some from 250r's. I know the HPD carbs have the adapter on the intake side for the airbox. What are the other differences?

 

none . the ones from hpd have the adapter and the right jeting where the others who knows what they are set up for. also hpd carb comes with the choke setup for the cable.

 

what is the adaptor?

 

The side of the carb where the airbox goes. On the regular 39 it is alot bigger, the HPD has an adapter to make it smaller, if you look, you can see its a different peice of aluminum in there.

 

okay cool hey just to let ya know mine is from 600 or 700 sled and it works fine

 

Cool. I just happened to be looking on EBAY and saw some going REALLY cheap, just wondering if they would work, for my next toy....

 

The carbs are setup totally different,HPD uses a different seat and a different slide,and needle.There have been a bunch of people on here that have tried running a non HPD carb and they just can't get it to run right.

 

well mine seems to run good if someone has a hpd carb get them to post what slide they have i think mine is a #6 and a eeh needle,35 pilot ,163 main

 

brave.
ihad one off my 700 on once and it had to small of a needle and seat when i would hammer it it would run out of fuel. so i got on for a quad. that is part of the reason sled have fuel pumps.

 

i had same problem it was a brass pin i pulled it out and all is good (i had a fuel pump on and did the same thing ) thats how i figured it was that pin