I am one of the many who have been having problems getting the jetting dialed in with the Dynojet kit. I just ordered the GYT-R jet kit to replace it. I am just wondering if any of you have done the same and what results came from the switch? Also any tips on jetting, my mods are full Yosh, Foam Pro Flow kit, EHS air box lid and ride sea level up to maybe 1000 FT. Even with the EHS cover, it seems that there is still enough of the lid missing to throw the dnyojet kit off.

 

Where did you order your GYT-R kit? Looks like I am going to go the same route.

 

Local dealer, gonna take a week to get it, you could order right from yamaha, I am not sure anyone else would have it other then dealers. It was 60 bucks, I will probably try to sell the dynojet kit on ebay or something, it was 70 something I wish I would have never spent.

 

160/165 mains, needle in third clip like in the instructions. Make sure you install the pilots of course. and whatever it said in the directoins for the air/fuel screws. no airbox lid. proflow foam with outerwear. IF you have the EHS cover, probably 155/160, i tried my EHS with the snorkel (tabs trimmed) and it ran crappy at 3/4 to full throttle with the 160/165

 

I agree with tanstaafl, I run same setup.

 

We just did some mods to my buddies raptor and we are having some problems with the jetting. We put a 12 tooth front sprocket and a fmf powercore 4 silencer on. When he ran with just that it ran pretty good but not as snappy as it should be. We installed the dynojet kit it runs better until you get into low speeds or up a hill. It acts like it is getting too much gas.

Also I have the same mods on mine but my jet kit is k&n and I just went down to a 12 tooth as well and it too seems like it is getting too much gas when i go up a hill.

Any ideas?

 

I have the same problem. I noticed that when I am climbing a long hill or trail, it seems like the machine is getting to much gas.

 

Wildwild, Mugsy what pilots are you running???

 

Mine does that too, I think it is the dynojet kit, thats one reason i am changing to the GYT-R kit.

 

tanstaafl, are you runng with the EHS lid still and do you have the 160/165 or the 155/160?