Two stroke carb adapter.

Tech questions that don't fit above forums

Moderator: Team

Post Reply
crazyman
Expert
Expert
Posts: 976
Joined: Sat Oct 27, 2007 4:53 am
Location: Yorkville, Illinois (60 miles SW of Chicago)

Two stroke carb adapter.

Post by crazyman »

I have a two stroke 30cc trimmer motor on a bicycle that I'm hopping up with a 35cc chainsaw carb. The new carb has a throat of 16mm, the stock throat was 13mm. The original plastic adapter doesn't have enough meat to hog out without reaching fresh air. So, I need to carve a new adapter.

What material would be cheap and readily available that I can make a new heat insulative reliable adapter from?


I tried walnut once as a spacer on a TBI, and it cracked. Should I just epoxy the stock adapter and then just hog away?

Image
crazyman
Expert
Expert
Posts: 976
Joined: Sat Oct 27, 2007 4:53 am
Location: Yorkville, Illinois (60 miles SW of Chicago)

Re: Two stroke carb adapter.

Post by crazyman »

Nevermind. JB Weld to the rescue.

Image
jsgarage
Expert
Expert
Posts: 916
Joined: Tue Jul 13, 2010 2:54 pm
Location:

Re: Two stroke carb adapter.

Post by jsgarage »

Why does it have to be heat-insulating? When the plastic adapter breaks again, make one of aluminum just like all the 2 stroke motorcycles used back in the day. Steel would work, too. Its not like a 5% drop in efficiency from heat soak will cost you a Championship....
Post Reply