Motor Overhaul (summer project)

[blaine]

Originally Posted by RamAir

Sorry M.J.'s? Motorcycle jets??

Main Jets. :biggrin: :cool:

[trykemike]

Hey Ram !

I like your enthusiasm . When I was 17 I had a 125 cc honda parallel twin. Small bikes were the norm. Yamaha 100 cc twins suzuki 120 cc singles honda 150 cc twins. I needed more power so I had a custom cam-shaft ground and 160 cc honda pistons and a velo-stack and uped the main jet from 75 to 95 and added shorty triumph mufflers with out baffles. Performance gains were incredible. The bike could burn 6 feet of rubber and wheelie at will. Top speed increased from 68 to 80 mph. Fuel economy was 40-50 mpg. The bike made weekly trips from scarborough to wasaga beech at 60-70 mph. I had fun and once drove to parry-sound and back. I later bought a 350 cc honda scrambler and only removed the baffles and richened the mixture. THE 125 WAS A LOT MORE FUN.

[RamAir]

Trykemike You just added fuel to the fire my friend!

Now I dont think Ill be grinding get a custom cam-shaft we will ahve to wait and see. But some stuff I am dreaming about is a 5angle valve job, ceramic coating the whole cumbustion chamber, head, valves, piston top, and so on and so on.
My Ram air set-up (if I can get some kinda pics Ill have to put them up) will have velosity stacks on both intakes.

You still livin in scar town?

[RamAir]

Does anyone know the size of the SUZUKI GN 400 mian jets?

Cuz what I can ruffly calculate a (I am guessing its the size) 144 jet would be great for a 300cc bike and a 158 or 160 would be great to making more power with a 300cc motorbike. Does tha sound about right?

[RamAir]

OK GOT A QUESTION! Hope I can get some help!


Gonna be pulling apart the motor that spun the top end soon and wanded to ask if the lower end looks good just bolt it back up? I hear never reuse rod bearings and stuff like that but I mean if they good and I dont need them will my motor be fine to just slap it abck together?

[blaine]

Originally Posted by RamAir

OK GOT A QUESTION! Hope I can get some help!


Gonna be pulling apart the motor that spun the top end soon and wanded to ask if the lower end looks good just bolt it back up? I hear never reuse rod bearings and stuff like that but I mean if they good and I dont need them will my motor be fine to just slap it abck together?

If you are not dissembling the bottom end,You should be fine,just to put a new head on. :cool:

[RamAir]

I wanna take the whole motor apart. It spun the top end but it still had all the oil in it! I think it cloged a vane or something like that and thats why it spun the top end. I just wanna be sure that the bottum end is fine! Although you have a good point that would save me a lot of time. I am just worried that its cloged near the pump and I bolt a new head on and it spins thta as well! :O

[RamAir]

Are there any rebuild kits anywhere for our motors? I cannot seem to find anything really.

Also anyone running a wider rear tire? or front?

[blaine]

Originally Posted by RamAir

Are there any rebuild kits anywhere for our motors? I cannot seem to find anything really.

Also anyone running a wider rear tire? or front?

Don't know about the rebuild kit,but I ran a 140 on the rear of my G.Z.
:roll:

[RamAir]

Ya ill take a lookin at Suzu but I dont want it costing half a bike just to get the motor like new.

And you had no problemo on them 140 rear?