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Discussion Starter · #1 ·
ok i plan on selling my 300ex and buying a trx450r very soon.. i will be putting it in the local mud runs to try to win some money.... when i get it i plan on puting some performance upgrades in it... i wanted to no if a small bore long stroke would be better than big bore smaller stroke??
need help
thanks in advance
 

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The 450 has plenty of motor to spin tires in the mud to begin with. Put a more aggressive cam and change the gearing...
 

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Just can't beleive anyone would do that to a TRX450R or ER their made for MXing and Cross country racing and the sand dunes
 

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Discussion Starter · #5 ·
well now that i was going to do that now my 300ex is idles wildy... sometimes it idles right and other times look out... can u get replacment parts for the carb on the ex??
 

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Discussion Starter · #7 ·
well its in the automatic idle a part of a little arm broke off and i dont no wat it is called
 

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well its in the automatic idle a part of a little arm broke off and i dont no wat it is called
Do you see the part in this diagram?

 

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Do you see the part in this diagram?

 

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Here are a couple more pictures.



 

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Discussion Starter · #12 ·
thats the right cover. but id dont see it.. it might have broke bad enough to where i cant reconize it.. i will look at it 2morrow and post a pic of it
 

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That's great, glad you got it fixed.
 
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