Need Carb advice
05-16-2003, 09:47 PM
#1
Need Carb advice
Hello guys; Ive found a guy near me with a small engine shop and he can get me walbro WT and WA carbs cheap. Real cheap. They are supposed to be new factory overuns and the price is good enough to try a few.
What I need to know is what are some of the options that I shoud be looking for.
I assume that I want a choke; high and low speed needle.
What is a good venturi size for some assorted engines.
For example the Ryobi 31 cc, The 20 to 25 cc range; and for the poulan 46 cc, is there a different carb that is an improvement over stock.
Just trying to get some info so when I get there I can make a more informed decision.
Thanks; Adam
What I need to know is what are some of the options that I shoud be looking for.
I assume that I want a choke; high and low speed needle.
What is a good venturi size for some assorted engines.
For example the Ryobi 31 cc, The 20 to 25 cc range; and for the poulan 46 cc, is there a different carb that is an improvement over stock.
Just trying to get some info so when I get there I can make a more informed decision.
Thanks; Adam
05-16-2003, 10:09 PM
#2
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Need Carb advice
Hey ~~ANeat~~, go over to page 3 , there is a" conversion carb data thread "by captinjohn ,
on all gas motors , and it show's what carb.fits on what engine.
Very useful stuff . I think this is the link
wem.walbo.com/walbo/family.asp
on all gas motors , and it show's what carb.fits on what engine.
Very useful stuff . I think this is the link
wem.walbo.com/walbo/family.asp
05-16-2003, 10:37 PM
#3
Need Carb advice
Yea that is a nice link; http://wem.walbro.com/walbro/family.asp Thanks. But that is not what Im looking for.
For example I have an Echo 21 cc engine that came with a Walbro WY, barrel type carb that doesnt seem to be the best choice for an RC application. What I was wondering is if I choose a WT or WA carb what is the best venturi size. There should be some balance between a large enough size for adequate power and small enough for good throttle response.
Is there a "rule of thumb" for venturi size to CC relationship??
Adam
For example I have an Echo 21 cc engine that came with a Walbro WY, barrel type carb that doesnt seem to be the best choice for an RC application. What I was wondering is if I choose a WT or WA carb what is the best venturi size. There should be some balance between a large enough size for adequate power and small enough for good throttle response.
Is there a "rule of thumb" for venturi size to CC relationship??
Adam
