HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
The Hopper Show

another jetting question

3 posts in this topic

so i was reading through this from the stickies:

clark4131

I've seen a lot of questions recently regarding this topic, so here is a list of when to and when not to rejet...

Re-jet

You just took delivery and did ALL the free mods...the bikes come lean from the factory and free mods make it worse.

You just put on a new exhaust system

You just installed a new carb

You just rebuilt the top end/had a big bore installed

You've changed average riding elevation by 4,000' or more

The temperature average has increased/decreased by 20 degrees

Whenever you have an environmental/mechanical change that significantly effects the air density or the air/fuel requirements of your engine.

Don't Re-jet

When you've only cut the grey wire

When you disconnect the TPS

When you remove the AIS

When your bike suddenly starts running poorly without any apparent reason

When you get new tires, graphics, grips, levers, brake pads, spark plugs or helmet cams

When you change your oil/coolant/suspension fluid

When you adjust your steering damper

When you finally set your sag properly

When you get into an altercation with a mountain biker

When your bike runs like a raped ape and you're happy with the performance

If I've overlooked something let me know :thumbsup:...SC

I am wondering how far i can take the free mods without rejetting. money is tight right now. i bought the gytr ais removal kit. above it says i can do the grey wire and remove ais without rejetting. there is no point to the grey wire without doing the yz throttle stop that comes with the kit. so with the throttle stop, do i need to rejet? the carb will be getting alot more fuel, but the same amount of air.

i know it will need jetting if i uncork it and open up the air box and exhaust. but what about just ais, grey wire, and throttle stop?

and is it worth the time to do the ais, grey wire, and throttle stop, without also doing the air box and exhaust? or should i wait till i can afford a jd jet kit and do it all at the same time? will i notice enough difference doing grey wire and throttle stop and ais without the other two to be worth the time?

Share this post


Link to post
Share on other sites

If you bought the GYTR AIS kit then you got the needle which is the big thing anyways.

Do all the free mods including airbox and muffler.

Put in the GYTR needle, buy a 168 main and a 48 pilot, though the stock 45 pilot might work...

Jets will cost you $5 each, won't break the bank.

Share this post


Link to post
Share on other sites

After you've been riding for a while, it's not uncommon to have collected a stack of jets.

I have probably have 4-5 of each size lying around.

I change the main depending on where I'm riding that day. It takes about 2 minutes. It's not the big intimidating job that people make it out to be.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0