WOT THEN BIKE IS DEAD??? HELP!
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WOT THEN BIKE IS DEAD??? HELP!
ok guys, going down a logging road at WOT in 6th gear and then back tire locks up and i'm doing a 100ft skid on the dirt road. it was at the start of the ride and i thought i had warmed up the bike enough. i swapped the plug roadside and it still would not start after 5 min of kicking it... luckily the road was on a very long uphill and the ride back to the truck was downhill. as i am coasting back down the hill to the truck i try and bumpstart and it fires up but it is a bit boggy ( if thats a word) the engine will rev up but not very fast. lots of spooge out the tailpipe. after the long trip back to the truck with the bike just idling it seemed to clear up. does not appear to be losing coolant, and the engine oil is not milky. i did have an issue with lots of fuel poring out of the bottom of the carb but it seemed to slow down once i was riding. do you guys think the motor may be #*%!'d . just looking on advice on where to start. any help at all would be appreciated. 99' kdx 200 frp milled head (216 kit). like i said before the bike seems ok now and running ok. just he spooge out the tailpipe worries me... thanks!!
- doctord23
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Re: WOT THEN BIKE IS DEAD??? HELP!
Sounds like a piston seizure to me.
My Team Green:
2002 KX-KDX 220
2000 KDX 220
2003 KLX 300 DS
1988 White KDX 200C3
1984 KX500 (original owner)
1996 Honda Magna V4
2017 Honda Africa Twin DCT
2002 KX-KDX 220
2000 KDX 220
2003 KLX 300 DS
1988 White KDX 200C3
1984 KX500 (original owner)
1996 Honda Magna V4
2017 Honda Africa Twin DCT
- Jaguar
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Re: WOT THEN BIKE IS DEAD??? HELP!
it seized. take it apart and use sandpaper to get the pistons aluminum off of the cylinder wall.
look under the piston top (the underside of the piston) to see if oil has been baked onto it and if it is black then your jetting is too lean.
If you have a Wiseco piston you have to let the bike warm up longer because they are prone to startup seizures.
after reassembly check your compression. If it is low then probably you're having run the engine after the seizure wore grooves in the piston rings (from the aluminum on the cylinder) and so you have to replace them.
look under the piston top (the underside of the piston) to see if oil has been baked onto it and if it is black then your jetting is too lean.
If you have a Wiseco piston you have to let the bike warm up longer because they are prone to startup seizures.
after reassembly check your compression. If it is low then probably you're having run the engine after the seizure wore grooves in the piston rings (from the aluminum on the cylinder) and so you have to replace them.
Performance CDI -- KDX motocross mods -- the SR KDX -- expansion chamber analysis---> http://www.dragonfly75.com/moto/
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Re: WOT THEN BIKE IS DEAD??? HELP!
hey thanks for the reply Jaguar, do you think something could have plugged the main jet ( dirty carb) and starved the engine? i guess ill find out when the cleanout begins... the thing that gets me is that it was running perfect in the few pit rides i had it on in the first few weeks of me owning it. ( i got the bike at the end of jan/15) this was the first time i actually had it going fast enough to get to 6th gear. thanks again
- bufftester
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Re: WOT THEN BIKE IS DEAD??? HELP!
Doubtful that a plugged main would have done it, it would not have run right on the top end if that were the case. As mentioned by others sounds like a seize.
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Re: WOT THEN BIKE IS DEAD??? HELP!
My son has an 05 200. What is the proper warm-up time that you all recommend for theses bikes? I make him chillax (his word not mine) for a few minutes after we get it started. A few minutes feels like an eternity to a 15 year old.
Thanks
Thanks
Whoa that was close!!! Damn kid is too fast for me to try and keep up to.
05 Kawasaki KDX 200
07 Yamaha xt 225
05 Kawasaki KDX 200
07 Yamaha xt 225
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Re: WOT THEN BIKE IS DEAD??? HELP!
I let mine warm up a couple minutes, or start up and ride slowly away. To be honest, both my kdx powered bikes won't even get to powerband if not warm. They just chop up and run like garbage.
- Jaguar
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Re: WOT THEN BIKE IS DEAD??? HELP!
You can put-put around till the engine truly warms up, or wait till you can feel cylinder heat through your glove. But even then you shouldn't give it full throttle right away.
yes, trash in the float bowl could of caused a partial restriction to fuel flow in the main jet. When you take it apart use wire from a bread twist -tie (with the plastic scraped off) to clean out the main jet.
read this: http://www.klemmvintage.com/airleaks.htm
yes, trash in the float bowl could of caused a partial restriction to fuel flow in the main jet. When you take it apart use wire from a bread twist -tie (with the plastic scraped off) to clean out the main jet.
read this: http://www.klemmvintage.com/airleaks.htm
Performance CDI -- KDX motocross mods -- the SR KDX -- expansion chamber analysis---> http://www.dragonfly75.com/moto/
- G22inSC
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WOT THEN BIKE IS DEAD??? HELP!
Better idea is to use compressed air to blow out the jets. Never a good idea to use wire, especially on the small PJs.
'05 Kaw KDX200 ('00 KX125 forks / '02 RM125 Showa "K2" shock)
'14 Yam YZ125(x) (oldest boy's)
'22 Yam YZ125X (youngest boy's)
'17 Yam YZ85 (soon to be FOR SALE)
'10 Honda Recon (wife's)
'08 Kaw KX65 (Sold)
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'09 Yam PW50 (retired)
'97 Kaw KX250 (Sold)
Gallery
2005 KDX200 Bike Profile
'14 Yam YZ125(x) (oldest boy's)
'22 Yam YZ125X (youngest boy's)
'17 Yam YZ85 (soon to be FOR SALE)
'10 Honda Recon (wife's)
'08 Kaw KX65 (Sold)
'07 KTM 50SX Sr. (Sold)
'09 Yam PW50 (retired)
'97 Kaw KX250 (Sold)
Gallery
2005 KDX200 Bike Profile
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Re: WOT THEN BIKE IS DEAD??? HELP!
Right on guys, thanks for the help! ill post some pics when i take it all apart and let you know what i find...... im sure hoping to find a bunch of crap in the carb...
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Re: WOT THEN BIKE IS DEAD??? HELP!
ok so i have a couple of pics but cannot post them. the carb was full if grit and chunks. how do i post a pic or two??
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Re: WOT THEN BIKE IS DEAD??? HELP!
I had the same thing happen on a bike I bought to flip. I did a top speed pull and got the same result. Air filter had come apart in tiny little pieces. Bought a new filter, cleaned carb and reed cage, good to go. Sold it to a friend after I put 10hrs on it, still rockin out.
Of worthy mention is to pull the reed cage and inspect. There were large chunks of foam in there. I doubt it would really hurt the engine, but it can't be good.
Of worthy mention is to pull the reed cage and inspect. There were large chunks of foam in there. I doubt it would really hurt the engine, but it can't be good.
- IDRIDR
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Re: WOT THEN BIKE IS DEAD??? HELP!
What kind of grit and chunks?BURNZ wrote:ok so i have a couple of pics but cannot post them. the carb was full if grit and chunks. how do i post a pic or two??
Find another site to host your photos (like photobucket; I use smugmug). Then copy the pic URL and past it using the URL button I see above when creating a new post.
2003 KDX 220. RB Carb & Head Mods. Desert pipe. She's a runner!
2006 KLX 250 w/351 big bore. A well-sorted dual sporter.
2006 KLR 650. Mostly stock.
2014 Suzuki DL1000.
2006 KLX 250 w/351 big bore. A well-sorted dual sporter.
2006 KLR 650. Mostly stock.
2014 Suzuki DL1000.