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chiefbong360
11-26-2007, 04:29 PM
how can you tell if your quad has a big bore kit without using a compression tester? i just bought my first quad and my buddy i got it off of says it has an ims 440 kit. now im not calling him a lier but id like to know the exact specs of my quad.
XXXRACER165
11-26-2007, 04:45 PM
Ride it! If you can do a 5th gear wheelie it's got a 440 kit!:D
drew416ex
11-26-2007, 05:04 PM
Originally posted by XXXRACER165
Ride it! If you can do a 5th gear wheelie it's got a 440 kit!:D

I understand what he is saying. But i have a 416 and can do a 5th gear wheelie without dumping the clutch. And a compression tester will only tell you the cylinder pressure, not the bore. The only real way to know is to tear it apart. If it was sent off to be built then it may be engraved somewhere on the coutside of the cylinder.
JOEX
11-26-2007, 05:18 PM
You may be able to determine the size by 'cc-ing' the cylinder similar to how heads are cc'ed. Might be a little messy but i'm sure it can be done.
red_rider_069
11-27-2007, 02:45 PM
i think u should see if any one near where u live has a stock 400 and try riding or racing him..
Pipeless416
11-27-2007, 03:07 PM
Originally posted by red_rider_069
i think u should see if any one near where u live has a stock 400 and try riding or racing him..

a poorly built 440 can be outperformed by an immaculate stocker. same with riders. the only way to tell has already been mentioned, measure the piston, or JOEX's way which i believe involves pouring a liquid through the spark plug hole and measuring how much it holds. correct me if im wrong.
JOEX
11-27-2007, 08:55 PM
Originally posted by Pipeless416
a poorly built 440 can be outperformed by an immaculate stocker. same with riders. the only way to tell has already been mentioned, measure the piston, or JOEX's way which i believe involves pouring a liquid through the spark plug hole and measuring how much it holds. correct me if im wrong.
That's what I was getting at;)
red_rider_069
11-27-2007, 11:18 PM
well thats why i said he should try and ride a stock one.. an a poorly built one will still show enough of a diffrence.. and yea measure how much liquid it holds..