350x big bore to 452 carb question

**joe_f7** · 03-23-2009, 05:12 PM

what is the best carb and jetting to use with the 452 big bore? i have the bigger valves and ported head. i do want to retain the stock air box. what the best way to do this? someone on here suggested a 38mm PE keihin, but just wondering what you guys have been using. any other pionters on the motor would be appreciated.

**SWIGIN** · 03-23-2009, 06:42 PM

thats what me and my buddys run on our stock to 460cc motors....great carb!

you can still get it in kit form for a 250x but i have found out that a warrior 38mm PE comes jetted closer and the large side of the cab is turned down alittle so i think this would help fit the stock air tube.

**joe_f7** · 03-23-2009, 09:32 PM

what do you guys run for the airbox? or do you put a open element on it? also are you talking about a yamaha warrior?

**SWIGIN** · 03-24-2009, 05:11 PM

the bikes with that carb have from stock box with no lid to full custom aluminum boxs. all are using K&N filters.

yup a yamaha warrior 38mm PE carb kit

**joe_f7** · 03-24-2009, 08:51 PM

was also thinking a 38 or 39 FCR carb.

**SWIGIN** · 03-24-2009, 08:53 PM

if this is on a trike that might be a tight fit

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350x big bore to 452 carb question