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View Full Version : I need more power on my Tri-z.


bassman
10-19-2006, 04:25 PM
But I wanna keep my Z motor too. I don't wanna raffa it up and put a 490 in it or anything. It's got a full DG on it now, been ported and polished, gots a uni air filter. I was thinking of taking the air box off, but will that be bad if I so through water and mud? because I have too on some of the trails I ride. Also, I heard 38mm carbs are ecellent mods. But there are so many on ebay, which one do I know to get? What are some good mods that make some hp? I wanna be able to beat some of the guys down the road. Right now, I can just keep up until I top out....yea, he has a banshee. I wanna be able to dust his ass until I top out, i wanna be have to make him really work to be able to pass me.
bassman
10-19-2006, 04:27 PM
How about this?
http://cgi.ebay.com/ebaymotors/85-86-YTZ250-Tri-Z-Boyesen-Power-Reeds_W0QQcmdZViewItemQQcategoryZ43977QQihZ016QQit emZ260039969750QQrdZ1QQsspagenameZWD1V
Kintore
10-19-2006, 04:56 PM
I got around the same set up, I got porting, reeds, pipe and a filter with no lid. Im also this winter sticking a 36 PWK on her.

I always heard 38's are too big for a 250cc? unless its fully modded?
Louis Mielke
10-19-2006, 05:01 PM
I run a 3 on my R with my PT high rev. Other then i don't have it jetted quite right it runs fine.
Yamahondaman
10-19-2006, 05:52 PM
I got around the same set up, I got porting, pipe and a filter with no lid. Im also this winter sticking a 36 PWK on her.

I always heard 38's are too big for a 250cc? unless its fully modded?
mine ain't modded too much with the 39mm PWK i have ..... :naughty:
Kintore
10-19-2006, 05:56 PM
BAHAHAAHAHAHAH (pause) BAHAHAHAHAAH


good one ronnie :)


I guess running a 38 aint bad, I know raffa has 2 on his, maybe im wrong?
Mosh
10-19-2006, 05:58 PM
Maybe you should look into the 310 kit Sprock racing is making.They should be done around December.Your engine will appear stock.You will have to have the cases bored out for the bigger sleeve.Or you can look into the phase 2 wrench report.That is more of a "stock "mod.
Yamahondaman
10-19-2006, 06:01 PM
the "310" would be GREAT to Have !!!
Hey Kintore ..... i thought you'd like that one !! :lol:
bassman
10-19-2006, 09:39 PM
Are you sure 38's are too much?
Bryan Raffa
10-19-2006, 09:52 PM
do what i did to this one then..LOL

http://www.3wheelerworldforums.com/showthread.php?t=48457&highlight=86+triz+rebuild
86tri-z270
10-19-2006, 10:24 PM
either go with boysen power or boysen carbon reeds... you just need to rejett... and of course a bigger front sprocket and back can sometimes give a little bit more speed.... just a little tho =)
Billy Golightly
10-19-2006, 11:05 PM
send it to Yamahondaman!
Yamahondaman
10-20-2006, 10:42 PM
send it to Yamahondaman!
WHOOOOOOOO !!!! i can't do nothing untill after the NEW YEAR !!!
after that ................ PORT....PORT....PORT....BLING....BLING....BLING !!!!!!
Louis Mielke
10-20-2006, 11:17 PM
WHOOOOOOOO !!!! i can't do nothing untill after the NEW YEAR !!!
after that ................ PORT....PORT....PORT....BLING....BLING....BLING !!!!!!


I know I'm gonna send him my tri-z stuff once I get it all stripped down. Can't wait till after the new year!
Yamahondaman
10-21-2006, 06:44 PM
I Can't wait till the" TRI-Z Cyl. i done in Canada " Does when he gets it back Together !!
MTS
10-21-2006, 09:06 PM
I Can't wait till the" TRI-Z Cyl. i done in Canada " Does when he gets it back Together !!
Me Either :drool: :drool: