Planet Minis

chalkinblue · 08-22-2009, 08:57 AM

Good new! I recruited 2 other fools into this rediculously addictive hobby! Our small gang consists 1973 z50, 1974 z50, 1975 ct70, and a 1973 ct70.

We bought the 1974 z50 in fair condition. We're planning for the complete rebuild this winter. So we're in the planning stages now. We our planning on using a 88cc bore kit, but we have some questions:

1. Are there any differences in quality among the manufactures of these kits?

2. What is the difference between the typical bore kits and the "race" bore kits? The cam?

3. And finally, which kit is highly recommended?

Any advice (or suggestions) on this bore kit project would be much appreciated.

Thanks...

MAZZ77X · 08-22-2009, 09:06 AM

I would have to recommend the TB 88cc Race Head kit as the head makes a ton of difference, especially on the top! TBolt USA, LLC » TB Parts » CRF50 XR50 88-06 » Trail Bikes Race Head, 88cc Bore & 20mm Carb Kit
The regular TB 88cc kit with carb for the stock head is great for guys looking to keep the low to mid range power as it has gobs of torque but the RH really hits once spun up. The link I posted is for the 88cc RH for newer models but Vince will get you hooked up with the right parts for each of your specific year/model bikes.

I would also say the TB kits are of excellent quality and priced right and they come complete with no need to hunt down anything else. 1 stop shopping!

Vince from T-Bolt TBolt USA - Pit Bikes, Pitster Pro, OGM, G2 Moto, Honda 50 Engines is you man for sure as he knows these bikes inside and out and has great pricing and fast shipping. You cant go wrong with the "Pit Bike Master"

Also a member on here "dirtbkr188" is as knowledgeable as they get when it comes to the older CT's and Z's so hit him up with a PM with any questions you may have. He will not steer you wrong and is a great guy always willing to share his infinite knowledge. Although maybe it's just his age

!

Blackwoodz · 08-22-2009, 09:20 AM

Or pm Terry aka Firepower345 here. He has new and used 88 kits available through his site
www.firepowerminis.com If you do not see what you want just contact him
he is very thorough about getting you what you need and very customer friendly answering any question you might have. he is a Fast shipper and does not inflate his shipping rates.

doopsx3 · 08-22-2009, 09:26 AM

Quote:

Originally Posted by Blackwoodz

Or pm Terry aka Firepower345 here. He has new and used 88 kits available through his site
www.firepowerminis.com If you do not see what you want just contact him
he is very thorough about getting you what you need and very customer friendly answering any question you might have. he is a Fast shipper and does not inflate his shipping rates.

Firepower354.......what up 'woods

Blackwoodz · 08-22-2009, 09:43 AM

Quote:

Originally Posted by doopsx3

Firepower354.......what up 'woods

dude I am dyslexic..this week....work has about a zillion numbers crammed in that gray matter.

doopsx3 · 08-22-2009, 09:44 AM

Quote:

Originally Posted by Blackwoodz

dude I am dyslexic..this week....work has about a zillion numbers crammed in that gray matter.

work is better than no work

s_10onbagz · 08-22-2009, 12:26 PM

I would say the Trail Bikes 88cc kit with race head and carb is the way to go. Most of the more expensive companies don't even sell BBK's for the older 6v bikes. DRATV and TB are basically your only choices.

Z · 08-22-2009, 12:36 PM

Quote:

Originally Posted by s_10onbagz

Main difference between the cheaper brands and the more expensive brands would be some of the more expensive brands use forged pistons. I would say the Trail Bikes 88cc kit with race head and carb is the way to go. Most of the more expensive companies don't even sell BBK's for the older 6v bikes. DRATV and TB are basically your only choices.

Who uses Forged pistons? Takegawa sells them as racing replacements for $300+ for the piston, but nobody I know of includes forged pistons in their bore kits.

s_10onbagz · 08-22-2009, 12:53 PM

Porwoll and Wiseco both do if I'm not mistaken. Kitaco does on their XR100 DOHC kit. I always thought Takegawa did on some of their kits, but I guess they just have real clean cast pistons.

firepower354 · 08-22-2009, 01:42 PM

Quote:

Originally Posted by Z

Who uses Forged pistons? Takegawa sells them as racing replacements for $300+ for the piston, but nobody I know of includes forged pistons in their bore kits.

Yosh?

s_10onbagz · 08-22-2009, 01:58 PM

that is correct.

08-22-2009, 08:57 AM	#1 (permalink)
chalkinblue PM Newbie Join Date: Aug 2009 Posts: 28	88 Bore Kit Question! Good new! I recruited 2 other fools into this rediculously addictive hobby! Our small gang consists 1973 z50, 1974 z50, 1975 ct70, and a 1973 ct70. We bought the 1974 z50 in fair condition. We're planning for the complete rebuild this winter. So we're in the planning stages now. We our planning on using a 88cc bore kit, but we have some questions: 1. Are there any differences in quality among the manufactures of these kits? 2. What is the difference between the typical bore kits and the "race" bore kits? The cam? 3. And finally, which kit is highly recommended? Any advice (or suggestions) on this bore kit project would be much appreciated. Thanks...

08-22-2009, 09:06 AM	#2 (permalink)
MAZZ77X 3rd Gear Member Join Date: Oct 2006 Location: Right down the road from NJMP Posts: 2,363 My Mood:	Re: 88 Bore Kit Question! I would have to recommend the TB 88cc Race Head kit as the head makes a ton of difference, especially on the top! TBolt USA, LLC » TB Parts » CRF50 XR50 88-06 » Trail Bikes Race Head, 88cc Bore & 20mm Carb Kit The regular TB 88cc kit with carb for the stock head is great for guys looking to keep the low to mid range power as it has gobs of torque but the RH really hits once spun up. The link I posted is for the 88cc RH for newer models but Vince will get you hooked up with the right parts for each of your specific year/model bikes. I would also say the TB kits are of excellent quality and priced right and they come complete with no need to hunt down anything else. 1 stop shopping! Vince from T-Bolt TBolt USA - Pit Bikes, Pitster Pro, OGM, G2 Moto, Honda 50 Engines is you man for sure as he knows these bikes inside and out and has great pricing and fast shipping. You cant go wrong with the "Pit Bike Master" Also a member on here "dirtbkr188" is as knowledgeable as they get when it comes to the older CT's and Z's so hit him up with a PM with any questions you may have. He will not steer you wrong and is a great guy always willing to share his infinite knowledge. Although maybe it's just his age! Last edited by MAZZ77X; 08-22-2009 at 09:13 AM.

08-22-2009, 09:20 AM	#3 (permalink)
Blackwoodz 3rd Gear Member Join Date: Aug 2008 Location: SC Michigan Posts: 3,626	Re: 88 Bore Kit Question! Or pm Terry aka Firepower345 here. He has new and used 88 kits available through his site www.firepowerminis.com If you do not see what you want just contact him he is very thorough about getting you what you need and very customer friendly answering any question you might have. he is a Fast shipper and does not inflate his shipping rates.

08-22-2009, 12:26 PM	#7 (permalink)
s_10onbagz 3rd Gear Member Join Date: Sep 2007 Location: Connecticut. Posts: 1,550	Re: 88 Bore Kit Question! I would say the Trail Bikes 88cc kit with race head and carb is the way to go. Most of the more expensive companies don't even sell BBK's for the older 6v bikes. DRATV and TB are basically your only choices. Last edited by s_10onbagz; 08-22-2009 at 12:48 PM.

08-22-2009, 12:53 PM	#9 (permalink)
s_10onbagz 3rd Gear Member Join Date: Sep 2007 Location: Connecticut. Posts: 1,550	Re: 88 Bore Kit Question! Porwoll and Wiseco both do if I'm not mistaken. Kitaco does on their XR100 DOHC kit. I always thought Takegawa did on some of their kits, but I guess they just have real clean cast pistons.

08-22-2009, 01:58 PM	#11 (permalink)
s_10onbagz 3rd Gear Member Join Date: Sep 2007 Location: Connecticut. Posts: 1,550	Re: 88 Bore Kit Question! that is correct.

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