40 mm carbs - Snowmobile Forum: Your #1 Snowmobile Forum

DonColliau · 12-15-2005, 12:46 PM

My sled came stock with 38's. I am thinking about trying some 40's, will this help or just cause issues? It is a 494 and i want to get some more out of it with out spending lots of dough

Thanks

SnowRida · 12-15-2005, 01:33 PM

I put these 40's on one of mine. Performs well!

DonColliau · 12-15-2005, 02:13 PM

Those CANT be real. Did you have to tweak em much? Seriously I need some help here lol

BRPforlife · 12-15-2005, 02:21 PM

I think there was a thread about this already. I don't really know the answer to your question but give it some time and SEG will find you. He knows everything and anything. Except that a seized engine is really caused by an oil cap in the clutch!

SnowRida · 12-15-2005, 02:23 PM

I put a couple new jets in her! She's fine now. So am I.
Really, SEG will find this and help!

**smallengineguy** · 12-15-2005, 04:39 PM

Bigger carbs won't help, it'll just flood more. If you do bigger in, you gotta do bigger out. Bigger carbs=bigger exhaust/porting. Clutching is the best bang for the buck.

IndianRvrShiver · 12-15-2005, 05:59 PM

He hath spoken the truth!!