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billiam
06-14-2010, 04:09 PM
Can anyone tell me if the Bolt-on 88cc piston & cylinder kit is worth doing? The kit is roughly $100.00 which I don't think is bad if it makes a difference..
atc350xer
06-14-2010, 04:32 PM
It makes a HUGE difference... I have one with the 88 kit and one without... it's night and day... get it!
Where are you getting it? Can you post a link? I'd like another one!
jensenracing77
06-14-2010, 04:32 PM
it does make a noticeable difference but is much better to back it up with a cam and carb.
atc350xer
06-14-2010, 04:35 PM
it does make a noticeable difference but is much better to back it up with a cam and carb.

Yeah, mine has a cam in it, I forgot... I think I have the stock carb though...
thestud25
06-14-2010, 05:12 PM
Can anyone tell me if the Bolt-on 88cc piston & cylinder kit is worth doing? The kit is roughly $100.00 which I don't think is bad if it makes a difference..

Yeah post a link to that kit. $100.00 is a great price! You can PM the link as well.
atc350xer
06-14-2010, 05:14 PM
Just went for a rip on the 88... it seems crazy that my 70 has more guts than my 90 :lol:
jensenracing77
06-14-2010, 07:08 PM
Just went for a rip on the 88... it seems crazy that my 70 has more guts than my 90 :lol:
lol, i just went out and was on mine. yes it is incredible how well they will run. i used an ATC90 carb on mine.
DickyDanger
06-14-2010, 07:15 PM
imo i think 100$ is a steal for a big bore kit!!
jensenracing77
06-14-2010, 09:12 PM
$187 is the cheapest i have found. for $100 i would jump on it.
peter250r
06-14-2010, 09:21 PM
this is for a atc70 right? THEN YES IT IS DEFINITELY WORTH DOING. my brother did it to my dads 74 atc70. we even went one more tooth on the front sprocket. it hammers now!
billiam
06-15-2010, 10:09 AM
Thanks for the input guys...Here is what I found Liet me know if it is something other than what yall had in mind.
http://www.dratv.com/88cykitall70.html
atc350xer
06-15-2010, 10:23 AM
That's funny, it says "may say 49cc on the head". Mine does say 49cc and I always wondered why... look at getting the cam too, all I know is mine had the kit and cam and it RIPS, ask atctim, he rode it at Snake's and was surprised at the guts it had. When I bought mine, the guy gave me a small box with the original head, piston, and cam in it, all greased and in plastic bags... they're like new!
billiam
06-15-2010, 10:32 AM
Whats the best cam to get they have a few different ones. Im lost haha (not a gear head)!
ratrodatc88
08-12-2010, 12:56 PM
hey guy's I'm new to the forum and I had a problem with my 88 kit on my 70. MY atc70 which has a new 88 kit and wont start. I checked the plugs and found it to be really black, i guess it's running rich. The spark plug was brand new. i rode the bike maybe for 10 minutes since the changed spark plug. I dont know what could be the issue. Any help is appreciated.
Thorpe
08-12-2010, 01:00 PM
You are way off on jetting if it fouls a plug in 10 minutes....
ratrodatc88
08-12-2010, 01:12 PM
could that be the problem for sure. If it is how do even go about fixing that?
I thought it may have been the idle but can't adjust it if I cant start it. Tried bumping it in third, it just dies out soon as i gas it. Air/fuel Mixture?
I've had a total engine rebuild, new points, and new 88 kit. my mechanic should have adjusted everything but who knows...
oneroom42
11-06-2010, 01:06 PM
ratrodatc88... sounds like what my brothers was doing but his is all stock except a #62 jet instead of #58 and has a turn down air filter. what ended up fixing the problem was taking the air/fuel mix screw completely out and it runs great!
dksix
11-06-2010, 01:15 PM
I'm doing a 70 for my son right now, that site has great prices. Thanks for providing the link.