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Spuds Porting and Tuning Thread

spudulike

By spudulike,
in Chainsaws

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spudulike
spudulike

Here is my more commercial view on what I call porting: - Most of the saws I get in for porting are anything from knackered to new....mostly "Well Used". Most need a good 45 min clean and an hour

spudulike
spudulike

In response to various comments on porting, Porting is viewed in different ways....here is perhaps a purist view and will follow this post with what my more commercial business take is: - Yo

spudulike
spudulike

I just wanted to make it clear that porting a saw is best on a good well working saw.  Porting will not fix a crap running engine with issues.....a SERVICE.....yes I repeat.....A SERVICE will!!!!

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Eddy_t Grand Master

Eddy_t

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Right, help needed, I need a bigger carb for the 357 as it's as lean as I can get it on a 15", so I can't go up to 18 as it'll be too rich. Likewise I need a bigger one for the 385 for the 36" bar and when I have it modded, but I believe a 372xt carb is the one to go with here?

 

 

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spudulike Grand Master

spudulike

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Right, help needed, I need a bigger carb for the 357 as it's as lean as I can get it on a 15", so I can't go up to 18 as it'll be too rich. Likewise I need a bigger one for the 385 for the 36" bar and when I have it modded, but I believe a 372xt carb is the one to go with here?

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Right - the 357XP - what has been done to it and what are you trying to achieve? a bigger carb will deliver more fuel/air to the saw - you are trying ot LEAN it down???

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Eddy_t Grand Master

Eddy_t

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Right - the 357XP - what has been done to it and what are you trying to achieve? a bigger carb will deliver more fuel/air to the saw - you are trying ot LEAN it down???

 

 

I have ported it as you know, and it sucks more air through, hence a richer mixture, so, by my reckoning I can sort this by fitting a carb with a larger diameter centre (dunno what it's called) as this will suck less fuel out, allowing a bit more adjustment

 

 

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