hey guys, ok here goes! ive been doing a frame up rebuild on my 89. heres the kicker i have NO manual. i have done a complete rebuild (top and bottom) also a fatty pipe and plan on getting a k&n clamp on, but i have no clue what stock jetting (main and pilot) settings are therefore no clue on where to start with jetting. if there is anything i might need to know give me some insight PLEASE!!! i hate to fry a brand new motor...especially considering i bought it as a basket and have never ridden it! i was also told 5oz. of premix per gallon, sound good?? oh by the way its only bored one over standard. suzuki said torque specs are 18-21 for base gasket but i dont know head torque specs. so as you can see the more replies and info i get will be greatly appreciated.

 

18-21 for base and 6-8.5 for head stock jets and for the stock 34 mikuni flatside carb specs areas followed in manual:
carb model:mikunitm34ss
venturi diameter:34mm
float level:10.9-12.9mm
air screw :2 turns out
needle clip position:3rd groove
jet needle:6pf63
standard main jet no.:240*
main air jet no. :2.5mm
needle jet no. :R-0
pilot jet no.:37.5
starter jet no. :110
OPTIONAL MAIN JETS 87-UP
NO. 200,220,250

hope that helps now u need to make adjustments for your altitude and mods that outta get ya goin.

 

im in n. carolina and i honestly dont know altitude but i know the bike has a 310 main jet in it now...suzuki also said 5 oz of premix per gallon does this sound correct?? anyone know what that ratio would be? thanks for the specs that will help a lot also anything to watch for as far a blowing out base gaskets , do i need to use sealant or anything i know lt500 was bad for blowing back out of base gasket. does 310 main sound ok and premix....?? sorry im new to 2 stroke world!

 

again ask your altitude and ill tell ya main jet number as statedin manual as for mix i run 32:1with 91 octane gas hopefully u get other replies on mix. all i can do is give u manual specs as my bike isnt stock and i am in a different altitude and temperature then you. ive seen alot of posts in here froma all over hopefully someones close to you. good luck again and get your altitude ill tell ya book specs.

 

ok i found my altitude is 900 ft. above sea level. but withl the fatty pipe and clamp on k&n ill need to compensate too im sure.[img]i/expressions/face-icon-small-wink.gif[/img]

 

yes u will have to compensate 0-5000 41-77f degrees for no mods is 220 id leave your 310 in it and work down your better off rich then lean plugs cheaper then a motor haha. check the plug if not rich at 310 go up couple. thats my opinion good luck again.

 

bumpin this up wondering if he blew it or got it right(or bought the manual hahaha)

 

hey guys me again...well after a wrench throwing contest on friday night (remember no manual) i made my trip to suzuki . im now waiting on my head gasket and bottom engine mount spacers .. i lubes main bearings w/ 2stroke oil replaced the stud i broke fri nite. i oiled cylinder bore slapped and slapped piston in. put side cases back on and expansion pipe reed cage and intake. the gasket will be in this week and hopefully it will run by sat ...we shall see...meanwhile ill be cleaning carb and checking jets and needle settings. oh by the way like i said before this is a frame up rebuild so everything is new , well im also having trouble with f. brakes no pressure . i just rebuilt the master cylinder but they wont bleed down no air just fluid i dont get it you can hear the pistons expanding just curious if anyone else had this trouble or a secret i dont know ??