new rm-z 250 problem

iverbigun · 09-02-2008, 01:38 PM

hi all ,
not been on for a bit but i have just bought new 08 rmz 250 .
run it in and have now done about 2 hours on it but has now got a problem.
when motor is hot it bogs so bad it nearly stalls the engine .i have parts warrenty still but they will no dowt charge me a fortune just to tell me what the problem is .
any ideas please or help
thanks every one .
regards iver

gscx · 09-02-2008, 02:27 PM

i think suzuki has a warranty on thier motocross bikes, if they do then just take it to the shop and they will take care of it for free, they should at least but idk. is your jetting way off, it might be really rich. you should probly look at your valves, it is pretty soon to be looking at them but it wouldnt hurt, or maybe you are leaking alot of coolant into the cylinder, check your coolant level after you get done riding, if you put anti freeze in it and not just straight water smell the exhaust and see if it smells sweet.

TDB303 · 09-02-2008, 03:29 PM

wow this is the second new rmz i have heard do this. what the other ones problem was for some reason the jetting was messed up big time. just a thought

iverbigun · 09-02-2008, 03:47 PM

great .ta,
had the valves done they were a little tight but within the tollerence .
and come to think of it the exhaust fumes do smell different from the other rmz 250' s i have had but no coolent loss?
the only thing is when you do get the thing past this bad bogging problem it goese like the wind .?????
it is hopefully going back to st blazzy's motocross where it came from ,as i have only been out on it 2 times and have only had it 3 weeks,,,,

gscx · 09-03-2008, 01:57 PM

re jet it before you send it back, the pilot jet is probably to big

atvrider93 · 09-03-2008, 02:02 PM

it needs to be richened
too lean and its heat soaking

jc--07 · 09-06-2008, 06:03 PM

how did it go ?

iverbigun · 09-14-2008, 02:56 AM

well took it back to shop last week at a 400 mile round trip.
they said couldnt find a problem ,
they just cleaned the carb ???
so got it back friday went out sat and guess what ?
done bowt 20 mins on it and then it started playin up again poppin and fartin like mad .
but only doese this when bike is hot when its cold she runs like a dream.

arrrrrrrrrrrrrrrrrrrgggggggggggggggggggggggggggggg ggggggggg

turtlemann14 · 09-14-2008, 09:25 AM

maybe run higher octane gas? pre-detonation?

and after it runs for a while the carb jets slightly clogged making it run a little leaner

that is a lot of wasted gas...

gscx · 09-16-2008, 10:22 AM

it wouldnt bog if it was to low octane, but he didnt say it was popping at first, so what kind of gas do you put in your bike?

09-02-2008, 01:38 PM	#1 (permalink)
iverbigun C Rider Join Date: Apr 2008 Location: somerset united kindom Posts: 17 iTrader: (0)	new rm-z 250 problem hi all , not been on for a bit but i have just bought new 08 rmz 250 . run it in and have now done about 2 hours on it but has now got a problem. when motor is hot it bogs so bad it nearly stalls the engine .i have parts warrenty still but they will no dowt charge me a fortune just to tell me what the problem is . any ideas please or help thanks every one . regards iver

09-02-2008, 02:27 PM	#2 (permalink)
gscx Pro Mototips Member Join Date: Aug 2007 Location: bridgeville DE Posts: 2,320 iTrader: (0)	i think suzuki has a warranty on thier motocross bikes, if they do then just take it to the shop and they will take care of it for free, they should at least but idk. is your jetting way off, it might be really rich. you should probly look at your valves, it is pretty soon to be looking at them but it wouldnt hurt, or maybe you are leaking alot of coolant into the cylinder, check your coolant level after you get done riding, if you put anti freeze in it and not just straight water smell the exhaust and see if it smells sweet. __________________ 199? KX60- Bone stock and in process of complete rebuild and restoration

09-02-2008, 03:29 PM	#3 (permalink)
TDB303 Super Moderator Join Date: Aug 2007 Location: The Valley, Ohio Posts: 1,809 iTrader: (0)	wow this is the second new rmz i have heard do this. what the other ones problem was for some reason the jetting was messed up big time. just a thought __________________ 01 yz 125 District 11 racing http://www.district11ama.com/ http://www.fasttraxxracing.com/ sponsers for 09. THANKS Bo's Radical Racers Moose Racing Boyesen Racing products SIXSIXONE CYCRA racing

09-03-2008, 01:57 PM	#5 (permalink)
gscx Pro Mototips Member Join Date: Aug 2007 Location: bridgeville DE Posts: 2,320 iTrader: (0)	re jet it before you send it back, the pilot jet is probably to big __________________ 199? KX60- Bone stock and in process of complete rebuild and restoration

09-06-2008, 06:03 PM	#7 (permalink)
jc--07 A Rider Join Date: Aug 2008 Location: Edinburgh Posts: 599 iTrader: (0)	how did it go ? __________________ bikes are gooooooood

09-02-2008, 03:47 PM	#4 (permalink)
iverbigun C Rider Join Date: Apr 2008 Location: somerset united kindom Posts: 17 iTrader: (0)	great .ta, had the valves done they were a little tight but within the tollerence . and come to think of it the exhaust fumes do smell different from the other rmz 250' s i have had but no coolent loss? the only thing is when you do get the thing past this bad bogging problem it goese like the wind .????? it is hopefully going back to st blazzy's motocross where it came from ,as i have only been out on it 2 times and have only had it 3 weeks,,,,

09-03-2008, 02:02 PM	#6 (permalink)
atvrider93 A Rider Join Date: May 2008 Location: Apex, NC Posts: 922 iTrader: (0)	it needs to be richened too lean and its heat soaking

09-14-2008, 02:56 AM	#8 (permalink)
iverbigun C Rider Join Date: Apr 2008 Location: somerset united kindom Posts: 17 iTrader: (0)	well took it back to shop last week at a 400 mile round trip. they said couldnt find a problem , they just cleaned the carb ??? so got it back friday went out sat and guess what ? done bowt 20 mins on it and then it started playin up again poppin and fartin like mad . but only doese this when bike is hot when its cold she runs like a dream. arrrrrrrrrrrrrrrrrrrgggggggggggggggggggggggggggggg ggggggggg

09-14-2008, 09:25 AM	#9 (permalink)
turtlemann14 Pro Mototips Member Join Date: Oct 2007 Location: West Virginia Posts: 4,363 iTrader: (0)	maybe run higher octane gas? pre-detonation? and after it runs for a while the carb jets slightly clogged making it run a little leaner that is a lot of wasted gas... __________________ If it does not move at first, get a bigger hammer!! Myspace Yamaha 1982 xj550 under bike lights Kawasaki klx250 1979 custom fiberglass silencer+ Honda xr200r 1985 stock = Dakaw Dk250 2008

09-16-2008, 10:22 AM	#10 (permalink)
gscx Pro Mototips Member Join Date: Aug 2007 Location: bridgeville DE Posts: 2,320 iTrader: (0)	it wouldnt bog if it was to low octane, but he didnt say it was popping at first, so what kind of gas do you put in your bike? __________________ 199? KX60- Bone stock and in process of complete rebuild and restoration

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