more zinger mods for me

**Vealmonkey** · 02-11-2009, 12:57 AM

I don't really remember all the detials. But we used a yamaha moped. When you switched the main gear, yo had to switch the shaft gear too. If I remember it was the gear combo, not just the main gear of the moped. My buddy had it all figured out and he picked up the moped and I was helping. It's sort of like switching around the sprockets in a chain drive bike.

**dcreel** · 02-11-2009, 06:28 AM

When removing the inner shaft for the pump. Do you just take out the whole shaft? I was going to leave the shaft with the plastic gear on it alone. But if I can remove it with no problems I will. I see your picture of the shaft, is it just held in by bearings in either engine case? And the shaft only works with the oil pump? Do you take off the gear that turns the shaft? If you do, do you have to put a spacer in its place?

I have 3 motors to rebuild so I guess I just need to pull it apart.

Thanks for the information I appreciate it. Also the connecting rod should have no side to side play right? I mean left to right play. All 3 of these motors have side to side play in the connecting rod. How do you measure the bore and the cylinder size to determine if you need an oversize piston? I see they have a .25 and .50 oversize set. Do I need to get a micrometer? And then covert the size to cm.'s ?

Thank you, I have a long row to hoe with the 3 I have.

**03 ORANGE SHEE** · 02-11-2009, 08:56 AM

you remove the shaft with the plastic gear too.and i removed the heavy gear on the countershaft as well. theres a circlip on the countershaft that holds the clutch in place, but if ever came off, i made that spacer so it wouldnt go "in" to the cases and destroy it.
the rod is supposed to have side to side play. i dont have a book to tell you what it is, but it is NOT supposed to have up/down play.
the piston is only made by yama that i have found. when you look at the top,it will have an arrow and it will say nothing for stock bore, .25, or .50 near that arrow.hope that helps you, nathan

**03 ORANGE SHEE** · 02-11-2009, 12:12 PM

got a lead from another member that this thing might be a direct bolt on a zinger. its for a 45mm piston, and has the reed block directly on the cylinder!!!then ill have to have the cases welded up and an intake made.
damn, this is going to get expensive!!

**Nick_R_23** · 02-11-2009, 12:17 PM

What size is the stock piston? Is that a YZ80 or a PW80 cylinder?

-Nick

**03 ORANGE SHEE** · 02-11-2009, 01:40 PM

Originally Posted by Nick_R_23

What size is the stock piston? Is that a YZ80 or a PW80 cylinder?

-Nick

i honestly dont know what the stock size is, maybe 42mm????

the cylinder in neither, its an aftermarket one like esr or ct. its for a motorcyle type is all i can say!

**Tri-Z 250** · 02-11-2009, 02:43 PM

its for a motorcyle type is all i can say!

HUSH HUSH TOP SECRET anymore probing questions will be

LMAO

**Nick_R_23** · 02-11-2009, 04:04 PM

Haha ok I will keep quiet now!!

-Nick

**bandito90** · 02-11-2009, 04:18 PM

It's for a Chappy correct?They were fun bikes.Should make that zinger really move!

**Vealmonkey** · 02-11-2009, 04:43 PM

I'm not sending out any more pm's on this! LOL

**bandito90** · 02-11-2009, 05:00 PM

Well when you scrolled over the pic it kinda told you what it was.

**03 ORANGE SHEE** · 02-11-2009, 05:08 PM

Originally Posted by bandito90

Well when you scrolled over the pic it kinda told you what it was.

what are you talking about?? it doesnt say that when i scroll over it.

**firefirefire90** · 02-11-2009, 05:36 PM

204cc stroker?!@>!>!@

**LonesomeTriZ** · 02-11-2009, 05:48 PM

Just wondering, why do you want a fast Zinger?

**03 ORANGE SHEE** · 02-11-2009, 07:15 PM

Originally Posted by LonesomeTriZ

Just wondering, why do you want a fast Zinger?

sorta like my signature, going to have" the fastest zinger on the planet... make a note".
and NO ONE has one built like this one im building.

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