howdy all, advice gratefully accepted as I know NOWT!! - Page 4

Weldangrind · 08-11-2014, 12:33 PM

Excellent progress. Good call on farming out the stitching.

Your needle and seat isn't seating. Perhaps something from the carb got caught in the seat, and that could help explain the no-start condition. Perhaps the slow and main jets are also clogged. After you clean them, I recommend that you install an inline filter. Whatever debris is left in the tank will head straight for the carb.

cactusmelba · 08-11-2014, 01:44 PM

Thanks Weldmeister, I'll whip the carb off, clean it out, and get a fuel filter too..

Another issue is that I was trying to re-fit the front calliper onto the forks but I can't prise apart the pads.. I tried to unscrew the lid on the hydraulic fluid chamber box mounted on the handlebars (I'm sure there's a more technical name for it than that but I personally don't know what it is!) to see if that would relieve a little pressure but the screws are SOLID. Instead I undid a little bleed nipple on the calliper itself until a little fluid came out then held it higher that the handlebars while I tried to prise the pads apart but no luck.

What am I doing wrong? (and don't say "playing at being a bike mechanic!")

bogieboy · 08-11-2014, 07:42 PM

sounds like a stuck caliper to me... mine were quite easy to pry apart when i dd my supermoto conversion... i actually just wiggled the caliper on the disk by hand to loosen the pads for the wider rotors of the ninja rims... you may need a new caliper or a rebuild, especially if they wont budge with the bleeder open... what are you using to try and move the pads? i usually use a large (1/4" or 6-8mm wide) flat blade screw driver...

cactusmelba · 08-12-2014, 06:44 AM

Yep, just a large screwdriver. The housing moves but the pads barely move at all... Weird as they've only been off for a few weeks and were fine up to then... I'll try to adjust it's attitude with my hammer and see if anything alters ..

bogieboy · 08-12-2014, 08:39 AM

silly question but can the pads go in if you squeze the lever? dont go a lot, but maybe see if the piston just got a bit stuck?

cactusmelba · 08-12-2014, 05:28 PM

Quote:

Originally Posted by bogieboy

silly question but can the pads go in if you squeze the lever? dont go a lot, but maybe see if the piston just got a bit stuck?

No. nothing's moving at all....

bogieboy · 08-13-2014, 08:52 AM

hmm... that seems to be an issue then... i assume the lever gets hard, like its building pressure? otherwise you might have a bad master cylinder... the piston on the caliper should be fairly easy to move...

cactusmelba · 08-20-2014, 04:26 PM

Hi all,

no real progress to report, but I think I might have found out why it's not starting.. I've mounted all the electrics under the seat on a tray, and I've just been reading that some ignition coils need to be mounted on the frame to complete the loop or something, whereas mine's just sat on the tray!
I'll get it mounted onto a bracket and see if that works!

And where did I read this nugget of information that's probably basic common sense to you guys?

For my anniversary my mate bought me a "chinese 125's Haynes manual" that includes the POR Apache 125!

Best . Present . Ever!

Not tried to do anything with the brakes yet. I'll consult my manual!!

Weldangrind · 08-20-2014, 10:26 PM

Hilarious! I never knew that manual existed. Please feel free to share bits of wisdom from that manual as you find stuff.

SpudRider · 08-21-2014, 01:17 AM

Thanks for posting the good tip on the Haynes Service Manual.

http://www.amazon.com/Chinese-Motorc.../dp/1844258718

cactusmelba · 08-21-2014, 05:44 PM

That's the one!

Got a spark now, mounting the coil on the frame clearly helped!

Weldangrind · 08-22-2014, 12:06 AM

I guess your coil achieved ground by attaching to the frame. Some do, while others have a dedicated ground wire.

cactusmelba · 03-21-2015, 12:55 PM

Hi All,

After a long cold winter when the only time I ventured into the garage was to get firewood, I've finally started tinkering on the bike again, and I'd like some advice on jets/mixture please.

I've got the bike running, ticking over lumpily, and starting first kick. The problem is that it doesn't seem to be revving more than about 2k revs while riding. (I'm guessing as I haven't got a rev counter any more). It'll rev, and accelerate , then at about 2k revs it'll bog down and hit a total flat spot. At that point if I reach under and tickle the choke it'll rev higher and accelerate more.

Does that mean it's running too lean?

And will that be because I've taken the air box off and put an air filter on instead?

[IMG]

[/IMG]

Weldangrind · 03-23-2015, 11:13 AM

Please save me from reading the thread again. What size engine do you have, and which carb are you using?

cactusmelba · 03-23-2015, 03:41 PM

Hi Weld,

It's a POR Apache, (GY125) running the stock carb , whatever that is. I've not re-jetted or anything yet, but I HAVE removed the airbox and installed a wire mesh filter that I found. Original exhaust is still on for the moment but I'm taking it in to get a new one made up so I can re-route it and make it shorter.

It starts nicely, first kick (with a little choke) but the problem is that when it's warm, it'll only rev to about 2k then hit a flat spot. If I reach down and tickle the choke while I'm riding then it'll rev much higher and pull off better. (I haven't actually got a choke cable on it at the moment otherwise I'd leave it open a little!)

Thanks for reading mate!

08-11-2014, 12:33 PM	#46
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Excellent progress. Good call on farming out the stitching. Your needle and seat isn't seating. Perhaps something from the carb got caught in the seat, and that could help explain the no-start condition. Perhaps the slow and main jets are also clogged. After you clean them, I recommend that you install an inline filter. Whatever debris is left in the tank will head straight for the carb. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

08-20-2014, 04:26 PM	#53
cactusmelba Join Date: Dec 2013 Location: the dirty stinkin UK Posts: 71	Hi all, no real progress to report, but I think I might have found out why it's not starting.. I've mounted all the electrics under the seat on a tray, and I've just been reading that some ignition coils need to be mounted on the frame to complete the loop or something, whereas mine's just sat on the tray! I'll get it mounted onto a bracket and see if that works! And where did I read this nugget of information that's probably basic common sense to you guys? For my anniversary my mate bought me a "chinese 125's Haynes manual" that includes the POR Apache 125! Best . Present . Ever! Not tried to do anything with the brakes yet. I'll consult my manual!! Last edited by cactusmelba; 08-20-2014 at 04:27 PM. Reason: more detail
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08-20-2014, 10:26 PM	#54
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Hilarious! I never knew that manual existed. Please feel free to share bits of wisdom from that manual as you find stuff. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

08-21-2014, 01:17 AM	#55
SpudRider Join Date: Jul 2008 Location: Idaho Posts: 25,054	Thanks for posting the good tip on the Haynes Service Manual. http://www.amazon.com/Chinese-Motorc.../dp/1844258718 __________________ Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894
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08-22-2014, 12:06 AM	#57
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I guess your coil achieved ground by attaching to the frame. Some do, while others have a dedicated ground wire. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

08-11-2014, 01:44 PM	#47
cactusmelba Join Date: Dec 2013 Location: the dirty stinkin UK Posts: 71	Thanks Weldmeister, I'll whip the carb off, clean it out, and get a fuel filter too.. Another issue is that I was trying to re-fit the front calliper onto the forks but I can't prise apart the pads.. I tried to unscrew the lid on the hydraulic fluid chamber box mounted on the handlebars (I'm sure there's a more technical name for it than that but I personally don't know what it is!) to see if that would relieve a little pressure but the screws are SOLID. Instead I undid a little bleed nipple on the calliper itself until a little fluid came out then held it higher that the handlebars while I tried to prise the pads apart but no luck. What am I doing wrong? (and don't say "playing at being a bike mechanic!")
	0

08-11-2014, 07:42 PM	#48
bogieboy Join Date: May 2013 Location: finger lakes NY Posts: 2,061	sounds like a stuck caliper to me... mine were quite easy to pry apart when i dd my supermoto conversion... i actually just wiggled the caliper on the disk by hand to loosen the pads for the wider rotors of the ninja rims... you may need a new caliper or a rebuild, especially if they wont budge with the bleeder open... what are you using to try and move the pads? i usually use a large (1/4" or 6-8mm wide) flat blade screw driver...
	0

08-12-2014, 06:44 AM	#49
cactusmelba Join Date: Dec 2013 Location: the dirty stinkin UK Posts: 71	Yep, just a large screwdriver. The housing moves but the pads barely move at all... Weird as they've only been off for a few weeks and were fine up to then... I'll try to adjust it's attitude with my hammer and see if anything alters ..
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08-12-2014, 08:39 AM	#50
bogieboy Join Date: May 2013 Location: finger lakes NY Posts: 2,061	silly question but can the pads go in if you squeze the lever? dont go a lot, but maybe see if the piston just got a bit stuck?
	0

08-13-2014, 08:52 AM	#52
bogieboy Join Date: May 2013 Location: finger lakes NY Posts: 2,061	hmm... that seems to be an issue then... i assume the lever gets hard, like its building pressure? otherwise you might have a bad master cylinder... the piston on the caliper should be fairly easy to move...
	0

08-21-2014, 05:44 PM	#56
cactusmelba Join Date: Dec 2013 Location: the dirty stinkin UK Posts: 71	That's the one! Got a spark now, mounting the coil on the frame clearly helped!
	0

03-21-2015, 12:55 PM	#58
cactusmelba Join Date: Dec 2013 Location: the dirty stinkin UK Posts: 71	Hi All, After a long cold winter when the only time I ventured into the garage was to get firewood, I've finally started tinkering on the bike again, and I'd like some advice on jets/mixture please. I've got the bike running, ticking over lumpily, and starting first kick. The problem is that it doesn't seem to be revving more than about 2k revs while riding. (I'm guessing as I haven't got a rev counter any more). It'll rev, and accelerate , then at about 2k revs it'll bog down and hit a total flat spot. At that point if I reach under and tickle the choke it'll rev higher and accelerate more. Does that mean it's running too lean? And will that be because I've taken the air box off and put an air filter on instead? [IMG][/IMG]
	0

03-23-2015, 11:13 AM	#59
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Please save me from reading the thread again. What size engine do you have, and which carb are you using? __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

03-23-2015, 03:41 PM	#60
cactusmelba Join Date: Dec 2013 Location: the dirty stinkin UK Posts: 71	Hi Weld, It's a POR Apache, (GY125) running the stock carb , whatever that is. I've not re-jetted or anything yet, but I HAVE removed the airbox and installed a wire mesh filter that I found. Original exhaust is still on for the moment but I'm taking it in to get a new one made up so I can re-route it and make it shorter. It starts nicely, first kick (with a little choke) but the problem is that when it's warm, it'll only rev to about 2k then hit a flat spot. If I reach down and tickle the choke while I'm riding then it'll rev much higher and pull off better. (I haven't actually got a choke cable on it at the moment otherwise I'd leave it open a little!) Thanks for reading mate!
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