LT Z250 mods

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Apr 10, 2007 | 07:09 PM

#21

crazy1291

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LT Z250 mods

How many valves does the z250 have? 2 right? i think the 250ex has 2 valves.......

is it harder to install a cam on an sohc engine with 4 valves?

Apr 10, 2007 | 07:25 PM

#22

bradr

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LT Z250 mods

yes it only has 2 valves
1 intake
1 exhaust.

Apr 10, 2007 | 08:30 PM

#23

crazy1291

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LT Z250 mods

well obviously it has one of each..... 2 intake would mean that the exhaust would have no exit- unless it was a part two stroke with 2 valves and a hole for the exhaust- someone should try that

Apr 11, 2007 | 10:56 AM

#24

LTZGUY

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LT Z250 mods

Why would the exhaust have only 1 exit? my z400 has 2 exhaust valves and 1 exhaust pipe....the port merges together.

Apr 11, 2007 | 08:49 PM

#25

crazy1291

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LT Z250 mods

i wasnt really being that serious- you could try using 5 valves for intake and 5 holes for exhaust- i dont care, i was just making up some stuff that probably have no power but would sound weird.

Apr 12, 2007 | 12:27 AM

#26

LTZGUY

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LT Z250 mods

ummm...ok

Mar 6, 2025 | 03:49 AM

#27

Lil_D_2013

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Quote:

Originally Posted by LTZGUY

I dunno hp wise how much but it made a huge difference. Like night and day. Its about $200 for cam and springs. Very very easy to put in. Its really stupid how easiy it is and everyone is scared to do it. I have had no problem with reliability or how easy it cranks compared to stock. It actually cranks easier than stock. With my mods its about as fast as a 400 ex stock. We are about what and what until 60 mph when I hit the rev limiter. I also did each mod 1 at a time to see the difference. Cam was most difference. Piston made the 2nd most and then the head porting.

did you happen to also get the over rev or big gun performance cdi aftermarket box? I know it allows higher Reving? There are a few things you can do people just don't realize it or know it's possible but it can be done if the people are willing to locate the parts