Planet Minis

motofox21 · 07-14-2009, 09:00 PM

I've recently started having some transmission trouble on a 3 year old Zongshen motor. It's a 125 crank mounted clutch, 4sp manual (1dn/3up). I believe 3rd gear may be a pressed on gear and is slowly spinning causing a harsh banging when under load, but I won't know until I get it apart. Anyone have Zonger parts laying around since these aren't the popular build motor anymore. I would like to try to pull together enough to save my trans and possibly upgrade to a G2 cam and a hi comp piston...if anyone still has the ancient stuff around. Cost effective repair and minor upgrade is what I'm hoping for...a new motor isn't quite what I want to do.

Blackwoodz · 07-14-2009, 09:17 PM

Give Terry at www.firepowerminis.com a jingle....he may have some used parts.

firepower354 · 07-14-2009, 09:33 PM

Quote:

Originally Posted by motofox21

I've recently started having some transmission trouble on a 3 year old Zongshen motor. It's a 125 crank mounted clutch, 4sp manual (1dn/3up). I believe 3rd gear may be a pressed on gear and is slowly spinning causing a harsh banging when under load, but I won't know until I get it apart. Anyone have Zonger parts laying around since these aren't the popular build motor anymore. I would like to try to pull together enough to save my trans and possibly upgrade to a G2 cam and a hi comp piston...if anyone still has the ancient stuff around. Cost effective repair and minor upgrade is what I'm hoping for...a new motor isn't quite what I want to do.

Like BW, said

It's not pressed-on, but is often the gear that fails. It shouldn't be any different than other China mills, and replacement gears are around $15-25 each. Since it's not really rideable, tear it down and send me pics of the hammered gear.

motofox21 · 07-15-2009, 09:00 AM

Quote:

Originally Posted by firepower354

Like BW, said

It's not pressed-on, but is often the gear that fails. It shouldn't be any different than other China mills, and replacement gears are around $15-25 each. Since it's not really rideable, tear it down and send me pics of the hammered gear.

Will do Terry, I'm hoping to get into it this weekend. You wouldn't happen to have or know which gaskets I'll need for rebuild would you?
Thanks in advance.

firepower354 · 07-15-2009, 10:06 AM

Yep, I have the gaskets, too

motofox21 · 07-15-2009, 01:16 PM

Quote:

Originally Posted by firepower354

Yep, I have the gaskets, too

Maybe hi-comp piston & cam that is known to work?!? i'm not look'n to get into anything crazy. Not look'n to go up in CC, just a lil umph.

firepower354 · 07-15-2009, 02:05 PM

Yep, those too

motofox21 · 08-08-2009, 11:12 AM

firepower354 · 08-08-2009, 11:20 AM

Them dogs won't hunt... Shoot 'em.

07-14-2009, 09:00 PM	#1 (permalink)
motofox21 1st Gear Member Join Date: Feb 2006 Location: Richmond, Virginia Posts: 137	Zongshen 125 I've recently started having some transmission trouble on a 3 year old Zongshen motor. It's a 125 crank mounted clutch, 4sp manual (1dn/3up). I believe 3rd gear may be a pressed on gear and is slowly spinning causing a harsh banging when under load, but I won't know until I get it apart. Anyone have Zonger parts laying around since these aren't the popular build motor anymore. I would like to try to pull together enough to save my trans and possibly upgrade to a G2 cam and a hi comp piston...if anyone still has the ancient stuff around. Cost effective repair and minor upgrade is what I'm hoping for...a new motor isn't quite what I want to do.

07-14-2009, 09:17 PM	#2 (permalink)
Blackwoodz 3rd Gear Member Join Date: Aug 2008 Location: SC Michigan Posts: 3,624	Re: Zongshen 125 Give Terry at www.firepowerminis.com a jingle....he may have some used parts.

07-15-2009, 10:06 AM	#5 (permalink)
firepower354 Advertiser Join Date: Oct 2006 Location: Flint MI Posts: 10,989 My Mood:	Re: Zongshen 125 Yep, I have the gaskets, too __________________ If it has my name on it I did it;) FirepowerMinis.com Custom FPM parts and engines. Parts and service for all makes. Honda Trail Bikes parts and accessories. Pitster/Piranha/Thumpstar bikes, parts, engines and accessories.

07-15-2009, 02:05 PM	#7 (permalink)
firepower354 Advertiser Join Date: Oct 2006 Location: Flint MI Posts: 10,989 My Mood:	Re: Zongshen 125 Yep, those too __________________ If it has my name on it I did it;) FirepowerMinis.com Custom FPM parts and engines. Parts and service for all makes. Honda Trail Bikes parts and accessories. Pitster/Piranha/Thumpstar bikes, parts, engines and accessories.

08-08-2009, 11:12 AM	#8 (permalink)
motofox21 1st Gear Member Join Date: Feb 2006 Location: Richmond, Virginia Posts: 137	Re: Zongshen 125

08-08-2009, 11:20 AM	#9 (permalink)
firepower354 Advertiser Join Date: Oct 2006 Location: Flint MI Posts: 10,989 My Mood:	Re: Zongshen 125 Them dogs won't hunt... Shoot 'em. __________________ If it has my name on it I did it;) FirepowerMinis.com Custom FPM parts and engines. Parts and service for all makes. Honda Trail Bikes parts and accessories. Pitster/Piranha/Thumpstar bikes, parts, engines and accessories.

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