Tyga exhaust

[nc30 duck]

change of subject but what jetting and needle position[washers] did you end up settling for after fitting the exhaust.

I went with Rick Oliver's suggested jet and needles. 120 front and 122 rear as far as I recall and a change of needles with the single washer. The needles are the bit that confuses me as the new ones are fatter and longer than stock which suggests the bike is way too rich as standard. Rick assures me it works. It's a secondary issue for me presently as a lack of a fitting exhaust has stopped progress

[Neosophist]

change of subject but what jetting and needle position[washers] did you end up settling for after fitting the exhaust.

I went with Rick Oliver's suggested jet and needles. 120 front and 122 rear as far as I recall and a change of needles with the single washer. The needles are the bit that confuses me as the new ones are fatter and longer than stock which suggests the bike is way too rich as standard. Rick assures me it works. It's a secondary issue for me presently as a lack of a fitting exhaust has stopped progress

stock neeldes are made fro 115 jets though or 110 if you have an 89 bike so fatter needles / larger jets will only slightly increase fuelling.

most aftermarket jdm exhausts were designed to run stock jets. ive never needed much more over 115/118 with a yamamoto system

[Mbrandt]

I have a single system with original shock, and I've had no problems fortunately. I hope you and Tyga can work it out!

[alexwitham]

I had a full Tyga system on my previous bike and it would foul in a few places but if you start by fitting the front and rear cylinder sections and work your way backwards, LOOSELY fitting it all, you can tweak and manipulate it to get enough cleareance. It takes an hour or so but you will find there should be a couple MM's clearance in even the tightest places. I also had a Nitron shock

[nc30 duck]

I had a full Tyga system on my previous bike and it would foul in a few places but if you start by fitting the front and rear cylinder sections and work your way backwards, LOOSELY fitting it all, you can tweak and manipulate it to get enough cleareance. It takes an hour or so but you will find there should be a couple MM's clearance in even the tightest places. I also had a Nitron shock

I can get it all to fit... With the bike sat on the stand. But with the shock Spring removed to allow me to exercise the swing arm through the full stroke of the shock the swing arm fouls on the bottom of the rear left pipe beside the shock.
Gavin has replaced the two first sections that come off the rear cylinders. The replacements are the same as the old ones, this makes me think that the system inherently doesn't fit. I would love to see another bike with a system on it to see if the same problem exists.


Tyga and Gavin are pretty useless. The attitude from tyga sucks really. I won't buy anything from either of them, ever again, for any bike