White smoke

Lit Hawk · 01-27-2018, 07:59 PM

So my sons Apollo 007 started blowing lots of white smoke out the exhaust. It also has a lot of oil around the muffler. Does anyone know what could be wrong? Where can I buy parts for this bike also?

Jamesfl · 04-03-2018, 04:48 PM

Sounds like you need new piston rings and/or piston.

You should pull the head to if you have either a 52.4MM piston or a 54MM piston so you will know what size to order. The piston and/or rings can be found easily online.

imapdog · 04-03-2018, 04:53 PM

i would make sure its oil and not a rich carb, or vacuum leak.

Lit Hawk · 04-03-2018, 09:01 PM

Sorry guys it’s an old thread. I ordered a new gasket and piston with rings and walked my son through it after watching many videos. That was about middle of February. It worked great ran better than ever. After about two weeks of riding the smoke came back not as bad as the first time but it did start smoking again. I haven’t fixed it yet not sure what to do but again replace gasket, piston, and rings. My son doesn’t ride too much and I’ve been so busy with my hawk I haven’t had time to mess with it but now that I got my bike running good and hopefully no more problems. Does anyone know what would cause the bike to start smoking again after replacing piston and rings?

Bruce's · 04-03-2018, 09:27 PM

Pistons ,rings ,and valves usually smoke blue not white ,when you replaced everything earlier what was the clearances or did you even bother to measure anything ?

Lit Hawk · 04-03-2018, 10:58 PM

Nope measured nothing. I ordered generic Chinese 125cc piston set up and it seemed to fit and seemed the same size but maybe it was wrong. So do you think I maybe got the wrong size?

No blue smoke just white.

I also adjusted valves for first time when changed piston and rings. Bike ran really good after doing this. Better than before just started smoking white again after doing this. I’ve searched this forum for more info on the Apollo 125cc 007 model and can find nothing on mods or info.

Megadan · 04-03-2018, 11:09 PM

With the new piston did you get a new cylinder? If not, did you check the bore size and hone the old cylinder for the new rings?

Even better, have you done a compression test?

Krasi_BG · 04-04-2018, 07:09 AM

Are you sure the smoke is white? White smoke usually means there's water coming into the cylinder (or exhaust) from somewhere. Does it smoke all the time or only when started cold?

Weldangrind · 04-04-2018, 11:57 AM

I agree with Krasi. Also, is the vent tube unrestricted? It's important that it has no kinks and is not plugged.

Its_not_a_honda · 04-04-2018, 12:56 PM

Quote:

Originally Posted by Lit Hawk

So my sons Apollo 007 started blowing lots of white smoke out the exhaust. It also has a lot of oil around the muffler. Does anyone know what could be wrong? Where can I buy parts for this bike also?

I used to work on lawn mowers. Could be a bad head gasket. Usually it would start fine and start smoking after it warmed up. Just throwing it out there. There are many other things too. Start with the other suggestions. Just keep this in mind.

**JerryHawk250** · 04-04-2018, 01:03 PM

Is the spark plug oily? If it's not, then it could be the valve seals. If the Valve seals leaking on the exhaust side it will usually be white smoke but will usually stop smoking after it warms up. It doesn't take much oil to make a lot of smoke if its leaking on the exhaust side.

Lit Hawk · 04-04-2018, 09:09 PM

Quote:

Originally Posted by Megadan

With the new piston did you get a new cylinder? If not, did you check the bore size and hone the old cylinder for the new rings?

Even better, have you done a compression test?

I did none of this don’t even know what hone the old cylinder means. Never done a compression test either. But I will learn thanks for giving me something to look into and study.

Smokes definitely white and it smokes all the Time.

I’ll check vent tube for restrictions or kinks.

I replaced the head gasket along with piston and rings. Like I said it stopped smoking and worked great for a couple of weeks after I replaced them. But started smoking again not as bad as the first time but it did start again.

I did see that it could be the valve seals. I’ve never changed them before so I need to look into how to do this. So I’ll check my spark plug for oil. Thanks everyone for giving me somewhere to start looking.

01-27-2018, 07:59 PM	#1
Lit Hawk Join Date: Oct 2017 Location: Houston,Tx Posts: 257	White smoke So my sons Apollo 007 started blowing lots of white smoke out the exhaust. It also has a lot of oil around the muffler. Does anyone know what could be wrong? Where can I buy parts for this bike also?
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04-03-2018, 11:09 PM	#7
Megadan Join Date: Apr 2017 Location: Omaha, NE Posts: 7,976	With the new piston did you get a new cylinder? If not, did you check the bore size and hone the old cylinder for the new rings? Even better, have you done a compression test? __________________ Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124
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04-04-2018, 11:57 AM	#9
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I agree with Krasi. Also, is the vent tube unrestricted? It's important that it has no kinks and is not plugged. __________________ 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
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04-04-2018, 01:03 PM	#11
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,552	Is the spark plug oily? If it's not, then it could be the valve seals. If the Valve seals leaking on the exhaust side it will usually be white smoke but will usually stop smoking after it warms up. It doesn't take much oil to make a lot of smoke if its leaking on the exhaust side. __________________ 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel
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04-03-2018, 04:48 PM	#2
Jamesfl Join Date: Oct 2017 Posts: 13	Sounds like you need new piston rings and/or piston. You should pull the head to if you have either a 52.4MM piston or a 54MM piston so you will know what size to order. The piston and/or rings can be found easily online.
	0

04-03-2018, 04:53 PM	#3
imapdog Join Date: Feb 2018 Location: nashville Posts: 574	i would make sure its oil and not a rich carb, or vacuum leak.
	0

04-03-2018, 09:01 PM	#4
Lit Hawk Join Date: Oct 2017 Location: Houston,Tx Posts: 257	Sorry guys it’s an old thread. I ordered a new gasket and piston with rings and walked my son through it after watching many videos. That was about middle of February. It worked great ran better than ever. After about two weeks of riding the smoke came back not as bad as the first time but it did start smoking again. I haven’t fixed it yet not sure what to do but again replace gasket, piston, and rings. My son doesn’t ride too much and I’ve been so busy with my hawk I haven’t had time to mess with it but now that I got my bike running good and hopefully no more problems. Does anyone know what would cause the bike to start smoking again after replacing piston and rings?
	0

04-03-2018, 09:27 PM	#5
Bruce's Join Date: Apr 2015 Location: Sudbury ,Ontario Posts: 855	Pistons ,rings ,and valves usually smoke blue not white ,when you replaced everything earlier what was the clearances or did you even bother to measure anything ?
	0

04-03-2018, 10:58 PM	#6
Lit Hawk Join Date: Oct 2017 Location: Houston,Tx Posts: 257	Nope measured nothing. I ordered generic Chinese 125cc piston set up and it seemed to fit and seemed the same size but maybe it was wrong. So do you think I maybe got the wrong size? No blue smoke just white. I also adjusted valves for first time when changed piston and rings. Bike ran really good after doing this. Better than before just started smoking white again after doing this. I’ve searched this forum for more info on the Apollo 125cc 007 model and can find nothing on mods or info.
	0

04-04-2018, 07:09 AM	#8
Krasi_BG Join Date: Nov 2011 Location: Sofia, Bulgaria Posts: 436	Are you sure the smoke is white? White smoke usually means there's water coming into the cylinder (or exhaust) from somewhere. Does it smoke all the time or only when started cold?
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