Author Topic: RM250Z Air Box  (Read 1623 times)

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Offline Toolboy

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RM250Z Air Box
« on: August 17, 2014, 02:39:06 pm »
Gday all,

I ahve heard that a good mod for the RM250Z is add additional holes in the airbox to allow better flow.

Mine has a unmolested original airbox, i dont want to drill holes in the side so is there an aftermarket  airbox available?? 

Thanks

Tim
82 RM250Z
79 RM400N
76 RM370A
74 TM400L
05 M50 Boulevard
1986 RM80G
1974 RV125
1994 DS80
2005 JR50

Offline MaxPower

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Re: RM250Z Air Box
« Reply #1 on: August 24, 2014, 10:56:51 am »
DC plastic replicated a single side airbox
I think they copied Twin Air  single side air box .  To me it's a little goofy looking.DC should have copied  the  air box that Roost Factory used to make instead

If I raced a Suzuki I'd buy a set of stock covers off eBay and drill them instead of the covers on my bike'

Offline Toolboy

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Re: RM250Z Air Box
« Reply #2 on: August 24, 2014, 11:29:52 am »
Thanks Max,

I did find the DC set and they looked weird.

Will look for a set of drilled or original air box covers

Cheers
82 RM250Z
79 RM400N
76 RM370A
74 TM400L
05 M50 Boulevard
1986 RM80G
1974 RV125
1994 DS80
2005 JR50

Offline MaxPower

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Re: RM250Z Air Box
« Reply #3 on: August 24, 2014, 10:17:54 pm »
I never has issue with The Floater airbox. I thought the filters were easy to change and never had to guess it they were sitting correctly to seal .

I had a 125 and I noticesd no gain at all when I drilled my covers.

Offline Rossvickicampbell

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Re: RM250Z Air Box
« Reply #4 on: August 25, 2014, 09:02:52 am »
same same - I had an RM250Z and didn't notice any difference after the drilling?
1974 Yamaha YZ360B
1980 Honda CR250R - Moto X Fox Replica

Offline MaxPower

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Re: RM250Z Air Box
« Reply #5 on: August 25, 2014, 12:18:23 pm »
I take it back . I noticed one time. I rode my 125 in an off road event. Mud was deep with water on top. I was clutching it to get through at 11000 rpm and when I looked down I saw brown water being sucked right into the holes I drilled
My only DNF that year was the next weekend at an MX when my rod bearing went out