trog
L plate rider.
Posts: 11
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Post by trog on Jul 8, 2013 21:06:59 GMT 1
got a ypvs n1 and i think it needs bigger jets, its got ram air filters and giannelli exhausts it did have a boost bottle on as well but i'v taken that off cause it was running that bad....... can anybody help with what size jets a should use and are the boost bottles any good, should i just stick with the standard connector pipe
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Post by billyboy on Jul 8, 2013 21:12:28 GMT 1
start large with your mains and do a plug chop ,boost bottles are generally fitted to get rid of flat spots, but it wouldn't make it run badly , you must have an other problem , would help if you could say exactly whats happening in the way of poor running
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trog
L plate rider.
Posts: 11
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Post by trog on Jul 8, 2013 21:36:04 GMT 1
it will rev and drop revs ok when stood but when riding its real sluggish setting off and the revs dont drop when changing gear....its a n2 not n1
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Post by dusty350 on Jul 9, 2013 7:01:52 GMT 1
Hi,
If you've got powerjet carbs fitted, they are known for being difficult to set up with pod filters. 31K non powerjets are better with pods. Also K&N style filters with metal end caps are worst than the foam style pods. It's trial and error with settings, but as said, start big and work down.
Dusty
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trog
L plate rider.
Posts: 11
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Post by trog on Jul 9, 2013 8:17:08 GMT 1
Thanks for the help............and is it just the main jet a need to swap
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Post by yardstikk on Jul 10, 2013 16:49:09 GMT 1
Try a plug chop.. Take it from there..
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trog
L plate rider.
Posts: 11
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Post by trog on Jul 10, 2013 17:16:22 GMT 1
What's a plug chop.......
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Post by billyboy on Jul 10, 2013 21:16:19 GMT 1
look under the jetting bit of the technical section on this forum for great info
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