2009 Honda TRX450r - Need Help Plz

[OmarTrx450er-09]

I have had my trx for almost a year now its been working great i put a full hmf exhaust an air filter and i got a dyno jet kit stage 2 i followed the instructions and just changed the main jet ..its been working fine but i feel that it can go much faster at top speeds and it starts choking and popping at 5th gear max speed??? how can i stop that and get more top speed??open the airbox?? help plz

[atvoffroad4life]

have you changed the plug?

[Jons450r]

change the plug. and what knd of gas are you runnin?

[OmarTrx450er-09]

nop dnt thnk so

[OmarTrx450er-09]

where can i get any good plugs >>>I NEED THEM SHIPPED

[OmarTrx450er-09]

do u recommend the ngk spark plugs>>>i run regular gas not racing

[Jons450r]

well you can get spark plugs over the internet im not sure of the best place bc i get mine from a local shop but id recomend runnnin at least 93 premium gas in it...i have a fmf pipe an jet kit an a big bore and i ran the cheap stuff in it for about an hour and it did not like it it was poppin and choking untill i changged to 93 so id run premium gas and as far as plugs go ngk are prety good but id check around online as well

[oxidized_black]

ngk plugs are great for honda and high test gas, a little more at the pump, but it will save you in the long run ....

[OmarTrx450er-09]

i use 95 premium gas....and there are many ngk types which do u recommend??

[OmarTrx450er-09]

zoo it has nothing do with the pilot jets and all the others right ?

[oxidized_black]

seems the guys here are jumping on the iridium plugs ...

Spark Plug ?? - Honda TRX Forums: Honda TRX 450R Forum

[Tagels]

You need to use the correct plug.. And as far as i know the only one that you can use is the NGK IFR8H11.

But as far as why its choking and popping in the top RPM range it could be the main jet is a little rich, you could try going down a size or 2 on the main jet and see if it helps..

[quadnut20]

I have had my trx for almost a year now its been working great i put a full hmf exhaust an air filter and i got a dyno jet kit stage 2 i followed the instructions and just changed the main jet ..its been working fine but i feel that it can go much faster at top speeds and it starts choking and popping at 5th gear max speed??? how can i stop that and get more top speed??open the airbox?? help plz

I`d loose that Dyno jet kit and find a HRC jet Kit made for honda !! air box lid on or off ?? Your probably hittin your rev limiter at max speed !! you can also do the Green wire mod ! That gives you a xrta 1000 rpms !!

Edited July 8, 2012 by quadnut20

[marioweldinginc]

In your opinion, With my 500cc motor, should i switch to an HRC kit or just go with an edelbrock carb?

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[OmarTrx450er-09]

I`d loose that Dyno jet kit and find a HRC jet Kit made for honda !! air box lid on or off ?? Your probably hittin your rev limiter at max speed !! you can also do the Green wire mod ! That gives you a xrta 1000 rpms !!

lid on....i feal that the bike can goo faster thats the iissue its hittin the rev limiter early> what is the green wire mod>>and will it cause any problems???

[OmarTrx450er-09]

my dealership are the ones who supposibly changed the main jet but i havent changed any other jets or stuff ...

[OmarTrx450er-09]

i bought an ngk spark plug will it solve the isssu?

[OmarTrx450er-09]

You need to use the correct plug.. And as far as i know the only one that you can use is the NGK IFR8H11.

But as far as why its choking and popping in the top RPM range it could be the main jet is a little rich, you could try going down a size or 2 on the main jet and see if it helps..

soo it has nothin to doo with the jetting or ith the pilot jet

[OmarTrx450er-09]

You need to use the correct plug.. And as far as i know the only one that you can use is the NGK IFR8H11.

But as far as why its choking and popping in the top RPM range it could be the main jet is a little rich, you could try going down a size or 2 on the main jet and see if it helps..

if i poen the lid would it doo the job instead of goin down at the main jet

[Jons450r]

as far as goin faster dude just get a big bore and make it a 490 or sumthin then you should have enough power to make you hap bc the little things arent gunna give you as much power or speed as it seems ur looking for, you could also experment with diff sprockets for more top end.