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Latest discussions at Pit Bike Club:
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08-02-2009, 05:46 PM
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#1
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Burning Rubber
Join Date: Jan 2009
Location: Pontypool
Age: 37
Posts: 237
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Slight worry... red hot exhaust and oil
Hi guys,
Just been out to start the bike ive not done it for a week, and it started fine, took a few kicks but it went with the choke on.
after a little bit of hard revving, when i left the throttle it would pop and blow a flame out like a rocket shooting off, and i looked down and the bottom of the exhaust where it comes out of the bottom of the engine on the U it was glowing red! red hot!
so i turned choke off to let it cut out and noticed on the floor a puddle of oil which looks like its come from the breather pipe on the top of the engine?
can any one be of help?
Cheers
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08-02-2009, 05:50 PM
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#2
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Join Date: Dec 2007
Location: Lanarkshire, Scotlnad
Age: 32
Posts: 1,749
Bike: 05 KX250-F
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Re: Slight worry... red hot exhaust and oil
Quote:
Originally Posted by imup4it
Hi guys,
Just been out to start the bike ive not done it for a week, and it started fine, took a few kicks but it went with the choke on.
after a little bit of hard revving, when i left the throttle it would pop and blow a flame out like a rocket shooting off, and i looked down and the bottom of the exhaust where it comes out of the bottom of the engine on the U it was glowing red! red hot!
so i turned choke off to let it cut out and noticed on the floor a puddle of oil which looks like its come from the breather pipe on the top of the engine?
can any one be of help?
Cheers
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For the oil it sounds like you have over filled when doing a oil change?
Glowing exhaust means engine is too hot (Which i belive would be your mixture which can be changed via your carb mixture screw)
Hope this helps
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08-02-2009, 05:51 PM
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#3
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Burning Rubber
Join Date: Jan 2009
Location: Pontypool
Age: 37
Posts: 237
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Re: Slight worry... red hot exhaust and oil
Quote:
Originally Posted by Bulldog
For the oil it sounds like you have over filled when doing a oil change?
Glowing exhaust means engine is too hot (Which i belive would be your mixture which can be changed via your carb mixture screw)
Hope this helps
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funny enough i did a oil change last week and stuck the whole 1litre in?
Mixture is set so the bike idles and does not cut out?
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08-02-2009, 05:51 PM
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#4
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Join Date: Mar 2008
Location: Birmingham
Age: 30
Posts: 2,365
Bike: crf450
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Re: Slight worry... red hot exhaust and oil
sounds like your running it to lean do a plug test
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08-02-2009, 05:53 PM
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#5
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Burning Rubber
Join Date: Jan 2009
Location: Pontypool
Age: 37
Posts: 237
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Re: Slight worry... red hot exhaust and oil
Quote:
Originally Posted by minimaterix
sounds like your running it to lean do a plug test
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bit sad but what do you mean lean? I.E the mix screw?
and whats a plug test
ta!
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08-02-2009, 05:54 PM
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#6
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Join Date: Dec 2007
Location: Lanarkshire, Scotlnad
Age: 32
Posts: 1,749
Bike: 05 KX250-F
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Re: Slight worry... red hot exhaust and oil
Quote:
Originally Posted by imup4it
funny enough i did a oil change last week and stuck the whole 1litre in?
Mixture is set so the bike idles and does not cut out?
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what is the engine oil recomendation ? some engines are 700ml ect, on my KXF its 1.2L thats with a filter change...
Quote:
Originally Posted by minimaterix
sounds like your running it to lean do a plug test
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Incase you dont know imup4it lean means too much air to fuel (usualy means your mixture screw is too far in
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08-02-2009, 05:55 PM
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#7
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Join Date: Dec 2007
Location: Lanarkshire, Scotlnad
Age: 32
Posts: 1,749
Bike: 05 KX250-F
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Re: Slight worry... red hot exhaust and oil
Quote:
Originally Posted by imup4it
bit sad but what do you mean lean? I.E the mix screw?
and whats a plug test
ta!
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I think despise posted it up on the workshop a while back about plug testing...
I'll have a look in the workshop to find it
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08-02-2009, 05:56 PM
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#8
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Burning Rubber
Join Date: Jan 2009
Location: Pontypool
Age: 37
Posts: 237
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Re: Slight worry... red hot exhaust and oil
Quote:
Originally Posted by Bulldog
what is the engine oil recomendation ? some engines are 700ml ect, on my KXF its 1.2L thats with a filter change...
Incase you dont know imup4it lean means too much air to fuel (usualy means your mixture screw is too far in
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Ok, um ive got a lifan 125 engine, and just stuck the whole 1L in, it was 4 stroke off road oil, silkolene cost me £7
Also if i adjust the mix screw it cuts out? would it be best to take it to the bike shop and get a carb setup done? it was fine the other week when out on it, maybe its because its cold and not been started for 6 days?
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08-02-2009, 05:58 PM
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#9
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Join Date: Dec 2007
Location: Lanarkshire, Scotlnad
Age: 32
Posts: 1,749
Bike: 05 KX250-F
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Re: Slight worry... red hot exhaust and oil
Quote:
Originally Posted by imup4it
Ok, um ive got a lifan 125 engine, and just stuck the whole 1L in, it was 4 stroke off road oil, silkolene cost me £7
Also if i adjust the mix screw it cuts out? would it be best to take it to the bike shop and get a carb setup done? it was fine the other week when out on it, maybe its because its cold and not been started for 6 days?
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take it out and run it for a good few hours (As in at a track/designated area) and see how it goes
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08-02-2009, 05:58 PM
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#10
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Compulsive Poster
Join Date: Oct 2007
Location: Gloucestershire
Age: 38
Posts: 19,047
Bike: klx's, 50
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Re: Slight worry... red hot exhaust and oil
starting it and just revving the pant out of its gonna cause things to get pretty warm, especially with the choke on
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