Planet Minis

Jthomas7 · 08-26-2009, 01:56 PM

Just trade this

straight across for this

and just ordered this

z50 chopper · 08-26-2009, 02:19 PM

looks like you got a good deal. More pics of the CT70H?

fatcaaat · 08-26-2009, 02:40 PM

Looks like the frame has an enormous dent? Any interest in a new set of kitaco 330mm shocks?

z50 chopper · 08-26-2009, 02:51 PM

if the frame does have a dent and u don't want to bother fixing it I saw another CT70H frame on ebay for want I think is cheap price with title. Easy to swap parts over.
or if you want a st70 dax frame instead http://cgi.ebay.com/ebaymotors/ws/eB...TQ:MOTORS:1123

Jthomas7 · 08-26-2009, 04:39 PM

man you guys had me freaking out, it definitely looks dented in the pics however it's actually not.

I would pay a decent price for a titled street legal frame for it though.

z50 chopper · 08-26-2009, 04:55 PM

Quote:

Originally Posted by Jthomas7

man you guys had me freaking out.

We aim to serve

z50 chopper · 08-26-2009, 10:34 PM

Quote:

Originally Posted by Jthomas7

Now add taillight, blinkers and that seat and go through the title service, you should be good to go or look at that link I posted earlier for the st70 dax frame with title, oops looks like someone already won it.

Jthomas7 · 08-27-2009, 12:27 AM

already have the tail light, just needs put on.

I see theirs a blinker selection lever on the bars. guessint the bikes wired for blinkers.

z50 chopper · 08-27-2009, 12:51 AM

Quote:

Originally Posted by Jthomas7

already have the tail light, just needs put on.

I see theirs a blinker selection lever on the bars. guessint the bikes wired for blinkers.

I have seen bike that have the switches but no lights or wiring for lights, but seeing as you have the headlight and taillight you could be in luck and wires coming from the switch?

Jthomas7 · 08-27-2009, 05:33 PM

hmmmmmmmm ok brand new carburetor.

Will only start with the choke on, after it starts you can flip the choke off immediately and run it at higher RPM's. If you try to let it idle it dies immediately.

z50 chopper · 08-27-2009, 05:45 PM

could it be the timing is not set right?

mexicanyella · 08-27-2009, 05:58 PM

brand-new STOCK carburetor? Assuming it's got the right pilot jet in it, I'd suspect the carb...either you don't have the idle stop screw in far enough, or the pilot jet is obstructed/wrong size, or the pilot air screw is incorrectly adjusted. It doesn't take much "wrongness" in either department. How's it run at the higher rpms again?

Jthomas7 · 08-27-2009, 06:19 PM

Full throttle fine, mid throttle it has a bad hesitation.

The bike also has very slow throttle response.

Checked the points and they are correct, howver I didn't take the timing chain gear cover off and check the timing.

Also I'm not sure if it's the stock carb, It's a mikuni he gave me with the bike and said he had not installed yet, has the petcock on the side of it.

also I just noticed it doesn't look like the slide in the carb is going down as far as it should, I have no more slack in the cable to let it go down any further.

mexicanyella · 08-27-2009, 08:53 PM

Stock carb should be a Keihin, I believe. To me what you describe sounds like flat spots in the powerband caused by a lean mixture part of the way through the throttle range, but since you say it seems to run okay at full throttle, that would indicate the main jet is okay or close to it.

A couple of things to check...with the petcock open and the bowl drain screw opened, what kind of fuel flow are you getting? It should be at least a fast dripdripdrip or a decent trickle. If it's not, check for a float that's hanging up, or a float needle that isn't dropping down along with the float but staying stuck in its seat. Check the jets for obstruction, and the pilot air passage and all that stuff. Shoot carb cleaner and compressed air through the various holes, watching so you don't have it come out the other end into your eye. Yeah, that's pretty unpleasant.

Check the needle that hangs from under the slide and see which groove the circlip is in. I don't know what carb you're dealing with there but to me it sounds like if you can verify enough fuel's getting into the bowl and the jets/passageways are clear, and you can get the idle mixture in the ballpark so it will idle (clear jet, clear passage, pilot air screw set somewhere between 3/4 and 2 turns out from seated--wherever it idles fastest, then close it maybe 1/8 turn from there--then you're pretty much left with sorting out the midrange, which you can sometimes do just with that needle circlip position.

I'm not a carb expert, but I've played one on TV a bunch of times. I may be leading you in the wrong direction but my hunch is that what you describe is not a valve-timing problem, and you seem to have spark.

Jthomas7 · 08-27-2009, 11:30 PM

Will definitely go threw it more tomorrow.
In the mean time my guy in Vietnam is hooking me up with some decals.

After I get it running well it's getting stripped and I will be painting the frame gloss black.

dirtbkr188 · 08-28-2009, 07:02 AM

Quote:

Originally Posted by mexicanyella

...I'm not a carb expert, but I've played one on TV a bunch of times...

eric0177 · 08-28-2009, 02:51 PM

where did u get that seat sick does it come with the latch and everything?

Jthomas7 · 08-28-2009, 07:20 PM

I have a guy in Vietnam that reproduces old Honda parts.

I have the original carb soaking over night, going to give it a good cleaning.

The new carb that's on it is using the old slide and needle which I'm pretty sure is a big part of my problem. I put the slide in the old carb and it goes almost all the way down and closes off the carb. When this slide is installed in the new carb it only goes about half way down.

cdoublejj · 08-29-2009, 12:52 AM

letssee better picture of the NOT DENT that looks weird.

Jthomas7 · 08-31-2009, 07:12 PM

Needle definitely fixed my running problems.

Here's a dumb question though.

I got the bike running well. I had the bike at an idle with no battery. I decided to hook up my test light to the tail light and as soon as I did it lit then blew the bulb. Is this telling me anything?

08-26-2009, 01:56 PM	#1 (permalink)
Jthomas7 2nd Gear Member Join Date: Dec 2005 Location: Ponca City, Oklahoma Posts: 807	My first CT70H build Just trade this straight across for this and just ordered this

08-26-2009, 02:19 PM	#2 (permalink)
z50 chopper 2nd Gear Member Join Date: Jun 2009 Location: Nanaimo, BC, Canada Posts: 504 My Mood:	Re: My first CT70H build looks like you got a good deal. More pics of the CT70H?

08-26-2009, 02:40 PM	#3 (permalink)
fatcaaat 3rd Gear Member Join Date: Sep 2004 Location: Arlington, VA Posts: 3,780	Re: My first CT70H build Looks like the frame has an enormous dent? Any interest in a new set of kitaco 330mm shocks?

08-26-2009, 02:51 PM	#4 (permalink)
z50 chopper 2nd Gear Member Join Date: Jun 2009 Location: Nanaimo, BC, Canada Posts: 504 My Mood:	Re: My first CT70H build if the frame does have a dent and u don't want to bother fixing it I saw another CT70H frame on ebay for want I think is cheap price with title. Easy to swap parts over. or if you want a st70 dax frame instead http://cgi.ebay.com/ebaymotors/ws/eB...TQ:MOTORS:1123 Last edited by z50 chopper; 08-26-2009 at 04:11 PM.

08-26-2009, 04:39 PM	#5 (permalink)
Jthomas7 2nd Gear Member Join Date: Dec 2005 Location: Ponca City, Oklahoma Posts: 807	Re: My first CT70H build man you guys had me freaking out, it definitely looks dented in the pics however it's actually not. I would pay a decent price for a titled street legal frame for it though.

08-27-2009, 12:27 AM	#8 (permalink)
Jthomas7 2nd Gear Member Join Date: Dec 2005 Location: Ponca City, Oklahoma Posts: 807	Re: My first CT70H build already have the tail light, just needs put on. I see theirs a blinker selection lever on the bars. guessint the bikes wired for blinkers.

08-27-2009, 05:33 PM	#10 (permalink)
Jthomas7 2nd Gear Member Join Date: Dec 2005 Location: Ponca City, Oklahoma Posts: 807	Re: My first CT70H build hmmmmmmmm ok brand new carburetor. Will only start with the choke on, after it starts you can flip the choke off immediately and run it at higher RPM's. If you try to let it idle it dies immediately.

08-27-2009, 05:45 PM	#11 (permalink)
z50 chopper 2nd Gear Member Join Date: Jun 2009 Location: Nanaimo, BC, Canada Posts: 504 My Mood:	Re: My first CT70H build could it be the timing is not set right?

08-27-2009, 05:58 PM	#12 (permalink)
mexicanyella El rey de los puntos Join Date: Aug 2008 Location: Troy, MO Posts: 984	Re: My first CT70H build brand-new STOCK carburetor? Assuming it's got the right pilot jet in it, I'd suspect the carb...either you don't have the idle stop screw in far enough, or the pilot jet is obstructed/wrong size, or the pilot air screw is incorrectly adjusted. It doesn't take much "wrongness" in either department. How's it run at the higher rpms again?

08-27-2009, 06:19 PM	#13 (permalink)
Jthomas7 2nd Gear Member Join Date: Dec 2005 Location: Ponca City, Oklahoma Posts: 807	Re: My first CT70H build Full throttle fine, mid throttle it has a bad hesitation. The bike also has very slow throttle response. Checked the points and they are correct, howver I didn't take the timing chain gear cover off and check the timing. Also I'm not sure if it's the stock carb, It's a mikuni he gave me with the bike and said he had not installed yet, has the petcock on the side of it. also I just noticed it doesn't look like the slide in the carb is going down as far as it should, I have no more slack in the cable to let it go down any further. Last edited by Jthomas7; 08-27-2009 at 06:22 PM.

08-27-2009, 08:53 PM	#14 (permalink)
mexicanyella El rey de los puntos Join Date: Aug 2008 Location: Troy, MO Posts: 984	Re: My first CT70H build Stock carb should be a Keihin, I believe. To me what you describe sounds like flat spots in the powerband caused by a lean mixture part of the way through the throttle range, but since you say it seems to run okay at full throttle, that would indicate the main jet is okay or close to it. A couple of things to check...with the petcock open and the bowl drain screw opened, what kind of fuel flow are you getting? It should be at least a fast dripdripdrip or a decent trickle. If it's not, check for a float that's hanging up, or a float needle that isn't dropping down along with the float but staying stuck in its seat. Check the jets for obstruction, and the pilot air passage and all that stuff. Shoot carb cleaner and compressed air through the various holes, watching so you don't have it come out the other end into your eye. Yeah, that's pretty unpleasant. Check the needle that hangs from under the slide and see which groove the circlip is in. I don't know what carb you're dealing with there but to me it sounds like if you can verify enough fuel's getting into the bowl and the jets/passageways are clear, and you can get the idle mixture in the ballpark so it will idle (clear jet, clear passage, pilot air screw set somewhere between 3/4 and 2 turns out from seated--wherever it idles fastest, then close it maybe 1/8 turn from there--then you're pretty much left with sorting out the midrange, which you can sometimes do just with that needle circlip position. I'm not a carb expert, but I've played one on TV a bunch of times. I may be leading you in the wrong direction but my hunch is that what you describe is not a valve-timing problem, and you seem to have spark.

08-27-2009, 11:30 PM	#15 (permalink)
Jthomas7 2nd Gear Member Join Date: Dec 2005 Location: Ponca City, Oklahoma Posts: 807	Re: My first CT70H build Will definitely go threw it more tomorrow. In the mean time my guy in Vietnam is hooking me up with some decals. After I get it running well it's getting stripped and I will be painting the frame gloss black.

08-28-2009, 02:51 PM	#17 (permalink)
eric0177 1st Gear Member Join Date: Jun 2006 Location: charlotte nc Posts: 209	Re: My first CT70H build where did u get that seat sick does it come with the latch and everything?

08-28-2009, 07:20 PM	#18 (permalink)
Jthomas7 2nd Gear Member Join Date: Dec 2005 Location: Ponca City, Oklahoma Posts: 807	Re: My first CT70H build I have a guy in Vietnam that reproduces old Honda parts. I have the original carb soaking over night, going to give it a good cleaning. The new carb that's on it is using the old slide and needle which I'm pretty sure is a big part of my problem. I put the slide in the old carb and it goes almost all the way down and closes off the carb. When this slide is installed in the new carb it only goes about half way down.

08-29-2009, 12:52 AM	#19 (permalink)
cdoublejj 3rd Gear Member Join Date: Oct 2008 Location: St.Joe MO Posts: 1,367 My Mood:	Re: My first CT70H build letssee better picture of the NOT DENT that looks weird.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

08-31-2009, 07:12 PM	#20 (permalink)
Jthomas7 2nd Gear Member Join Date: Dec 2005 Location: Ponca City, Oklahoma Posts: 807	Re: My first CT70H build Needle definitely fixed my running problems. Here's a dumb question though. I got the bike running well. I had the bike at an idle with no battery. I decided to hook up my test light to the tail light and as soon as I did it lit then blew the bulb. Is this telling me anything?