Big Bar Swap & Now 50 Won't crank? - Page 2

F3 stunna · 10-24-2009, 04:53 PM

Usually when you put the big bar kits on they come with a shorter turn throtlle i know mine only turns about 1/4 turn.

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fouroh8 · 10-24-2009, 06:03 PM

I had a problem with my xr after putting big bars on it. it was similar to what your having, mine would idle but not rev.

I ended up taking the carb off, took the bowl off and cleaned everything out. hosed it with carb cleaner and blew low pressure air through it.

it ran fine after that. I'm thinking dirt got in somewhere and was hanging the float or not letting the needle seat properly.

Crazy D · 10-24-2009, 06:20 PM

His bike looks too minty fresh to be dirty

fouroh8 · 10-24-2009, 11:59 PM

you'd be surprised at what a spec of dirt would do in a carb.

InfiniteReality · 10-25-2009, 12:52 PM

I can twist the throttle, but it doesn't feel like it moves as much as usual. I've only had the bike 2 weeks today and only rode it up and down the road a few times before I pulled it all apart for the suspension and big bar kit. Thanks for the help, I'll pull the carb today so I can be 100% sure it's back together.

When I say it only runs for the 30s, basically I finally get it to crank it revs up for a bit and I'm twisting the throttle to get it to come back down and when it does it dies. It's almost like the carb is stuck open and then immediately closes. Also when I try to start it, it's got a ton of compressor in the cylinder causes the bike jumps a little bit.

I swear if something can go wrong, it'll go wrong when I'm doing it. The one thing that could go wrong with installing all this stuff is the only time I gotta mess with the engine, I screw it up, lol!

Quote:

Originally Posted by sarNz

are you trying to put the cap back on when the carb is still hooked up to the motor? it's easier if you pull the carb all the way off. then you can check the needle and make sure it's seated properly and that cylinder goes almost all the way down when the throttle is closed. unless you're totally sure you got it on there right.

and you say you only get it running 30 seconds. is this idle or riding? fuel on? choke off?

and the billet throttle on my bike feels good to me.

InfiniteReality · 10-25-2009, 12:55 PM

Good call, I'll definitely be cleaning the carb while it's out!

InfiniteReality · 10-26-2009, 09:37 AM

I went to go put all my stock stuff in a tub to store and noticed a gasket on the carb cap... Mine didn't have one, so put it on the new one.. Still won't crank so going to take the carb off and clean. Fingers crossed!!

InfiniteReality · 11-07-2009, 01:54 PM

Update.... I took the carb off, cleaned it throughly and blew some air through it. All was spotless so I put it back together and back on the bike as well as installed a new 50stunt billet throttle and cable. Throttle works perfect and it did crank a couple of times and kinda idled but didn't rev and eventually died. I'm at a lost here, kinda fed up with it and ready to drop it off some where to get fixed!

Anyone else have any other suggestions? I swear I have the worst luck!!

InfiniteReality · 11-07-2009, 05:46 PM

Fixing to check the plug, one thing I haven't done yet. If that's good, then curious if I could just buy a new upgraded carb... maybe a 24mm and be good to roll plus an upgrade?

Ryan Moore · 11-08-2009, 10:28 AM

Quote:

Originally Posted by InfiniteReality

Update.... I took the carb off, cleaned it throughly and blew some air through it. All was spotless so I put it back together and back on the bike as well as installed a new 50stunt billet throttle and cable. Throttle works perfect and it did crank a couple of times and kinda idled but didn't rev and eventually died. I'm at a lost here, kinda fed up with it and ready to drop it off some where to get fixed!

Anyone else have any other suggestions? I swear I have the worst luck!!

are you letting it warm up for a while? the stock motors don't like to run untill they are nice and warm. If you start it, then try to crack the throttle, they will die, for like the first 2-3 minutes of having the bike running. The only thing you did was put a big bar on this bike? before that it ran cherry? thats really crazy cuz the only part of the engine you touch is the needle in the slide and the carb cap. are you using the choke?

InfiniteReality · 11-08-2009, 05:31 PM

Quote:

Originally Posted by Ryan Moore

are you letting it warm up for a while? the stock motors don't like to run untill they are nice and warm. If you start it, then try to crack the throttle, they will die, for like the first 2-3 minutes of having the bike running. The only thing you did was put a big bar on this bike? before that it ran cherry? thats really crazy cuz the only part of the engine you touch is the needle in the slide and the carb cap. are you using the choke?

Yep before the big bar, it ran perfect... that's the weird part and it's just shitty luck on my end... I've tried with and without choke on, no luck either way. Cleaned the carb and plug looks black with soot and reeks of gas. So I'll get a new one or clean it and give it another go.

I didn't let it warm up before reving it, maybe that was an issue...or fouled the plug possibly

F3 stunna · 11-12-2009, 11:31 PM

a 24mm on a stock motor would be way too much carb for that bike if your gona spednd that much money on an upgrade i'd go for the big bore kit!!!!.... i would try getting it running with the stock carb before you go throwin parts at it. Check the wire goin into the spark plug cap sometimes they like to come out. Also there is a flat head screw at the bottom of the carb bowl, after you start it and it dies immediately turn that counter clockwise and see if fuel comes running out of the overflow tube, when you have the gas on it should keep running out of there. This will tel you if i is getting fuel. I know this stuff may sound stupid but its always best to check the basics before you spend a bunch of money!!!!!!!! if it does end up being something wrong wih the carb i have a nice stock one that i would part with..

InfiniteReality · 11-13-2009, 09:02 PM

Dunno WTF happened, I posted the below Wed on here and now it's not here???

Problem solved! Such as freakin' easy fix and of course the last thing I checked/did... Fouled plug and I'd bet it was because of the below scenerio which fouled it and went down hill afterwards. It runs perfect and as a plus now has a clean carb too.

Put big bars on, cracked throttle tube tightening it so throttle didn't work properly. I also didn't realize the new carb cap (BTW protaper throttle cable sucks, too high and hits frame) didn't come with a gasket so after it wouldn't start and I pulled it back off I realized it and put the stock one on it. Still no go....thinking the plug was pretty fouled by this point but also had new cable and billet throttle coming so of course when it came in, still wouldn't run right.

Thanks for all the help and quick replies! Sorry it turned out to be so easy to fix, but glad it's running perfect again!

BTW, after installed the new plug, the first kick and it was up and running again.

XRshfifty · 11-14-2009, 04:03 AM

Its crazy how something so simple can be the hardest to figure out....

glad you got it running. NOW get ta stuntin!

F3 stunna · 11-14-2009, 09:52 AM

didn't i tell you to puta new plug in it like 2 weeks ago?!?!?!?!? lol glad ya go it runnin though

InfiniteReality · 11-15-2009, 08:25 AM

Yep you indeed did, should have listened and kicking myself in the ass for not. I do have spare plugs now, so first thing I'll do next time WILL BE the plug!

F3 stunna · 11-20-2009, 11:39 AM

its always the simplest shit that screws ya up. always check the basics... stock 50's shouldn't foul plugs out too often, i think i've had the same plug in my 69 honda mini trail for ten years and it still runs!!! lol if it fouls one again i would check the jetting to see ifsomeone put a bigger main in.. and i think the air screw should be out about 1 3/4-2 turns... now put a big bore kit on that shit!!!!!!

10-24-2009, 06:03 PM	#22
fouroh8 Jersey Rider Join Date: Apr 2008 Location: Jersey Bike: 06 gixxer 1k, f2 stunt special, 04 crf88 Gender: Male Posts: 129	Re: Big Bar Swap & Now 50 Won't crank? I had a problem with my xr after putting big bars on it. it was similar to what your having, mine would idle but not rev. I ended up taking the carb off, took the bowl off and cleaned everything out. hosed it with carb cleaner and blew low pressure air through it. it ran fine after that. I'm thinking dirt got in somewhere and was hanging the float or not letting the needle seat properly.

10-24-2009, 06:20 PM	#23
Crazy D I'M A REGISTERED USER !! Join Date: Dec 2005 Location: Poplar Grove, IL Age: 38 Bike: Five i think . And some parts Gender: Male Posts: 5,415	Re: Big Bar Swap & Now 50 Won't crank? His bike looks too minty fresh to be dirty __________________ "WOW fuck you guys i guarantee you that in at the most a year i'll be able to dominate your stunting game in every aspect ." RocSteady 11-18-07

10-24-2009, 11:59 PM	#24
fouroh8 Jersey Rider Join Date: Apr 2008 Location: Jersey Bike: 06 gixxer 1k, f2 stunt special, 04 crf88 Gender: Male Posts: 129	Re: Big Bar Swap & Now 50 Won't crank? you'd be surprised at what a spec of dirt would do in a carb.

10-25-2009, 12:55 PM	#26
InfiniteReality Registered User Join Date: Mar 2009 Location: Lake Charles, LA Bike: 03 Hayabusa - 06 CRF50 Gender: Male Posts: 191	Re: Big Bar Swap & Now 50 Won't crank? Good call, I'll definitely be cleaning the carb while it's out! __________________ 2003 Silver/Charcoal Suzuki Hayabusa 2006 Black/Black Honda CRF50 2008 Silver/Black Chevrolet TrailBlazer SS

10-26-2009, 09:37 AM	#27
InfiniteReality Registered User Join Date: Mar 2009 Location: Lake Charles, LA Bike: 03 Hayabusa - 06 CRF50 Gender: Male Posts: 191	Re: Big Bar Swap & Now 50 Won't crank? I went to go put all my stock stuff in a tub to store and noticed a gasket on the carb cap... Mine didn't have one, so put it on the new one.. Still won't crank so going to take the carb off and clean. Fingers crossed!! __________________ 2003 Silver/Charcoal Suzuki Hayabusa 2006 Black/Black Honda CRF50 2008 Silver/Black Chevrolet TrailBlazer SS

11-07-2009, 01:54 PM	#28
InfiniteReality Registered User Join Date: Mar 2009 Location: Lake Charles, LA Bike: 03 Hayabusa - 06 CRF50 Gender: Male Posts: 191	Re: Big Bar Swap & Now 50 Won't crank? Update.... I took the carb off, cleaned it throughly and blew some air through it. All was spotless so I put it back together and back on the bike as well as installed a new 50stunt billet throttle and cable. Throttle works perfect and it did crank a couple of times and kinda idled but didn't rev and eventually died. I'm at a lost here, kinda fed up with it and ready to drop it off some where to get fixed! Anyone else have any other suggestions? I swear I have the worst luck!! __________________ 2003 Silver/Charcoal Suzuki Hayabusa 2006 Black/Black Honda CRF50 2008 Silver/Black Chevrolet TrailBlazer SS

11-07-2009, 05:46 PM	#29
InfiniteReality Registered User Join Date: Mar 2009 Location: Lake Charles, LA Bike: 03 Hayabusa - 06 CRF50 Gender: Male Posts: 191	Re: Big Bar Swap & Now 50 Won't crank? Fixing to check the plug, one thing I haven't done yet. If that's good, then curious if I could just buy a new upgraded carb... maybe a 24mm and be good to roll plus an upgrade? __________________ 2003 Silver/Charcoal Suzuki Hayabusa 2006 Black/Black Honda CRF50 2008 Silver/Black Chevrolet TrailBlazer SS

11-12-2009, 11:31 PM	#32
F3 stunna Registered User Join Date: Oct 2008 Location: Rochester mn usa Bike: F3 furburger 02 xr88cc bbr frame Gender: Male Posts: 98	Re: Big Bar Swap & Now 50 Won't crank? a 24mm on a stock motor would be way too much carb for that bike if your gona spednd that much money on an upgrade i'd go for the big bore kit!!!!.... i would try getting it running with the stock carb before you go throwin parts at it. Check the wire goin into the spark plug cap sometimes they like to come out. Also there is a flat head screw at the bottom of the carb bowl, after you start it and it dies immediately turn that counter clockwise and see if fuel comes running out of the overflow tube, when you have the gas on it should keep running out of there. This will tel you if i is getting fuel. I know this stuff may sound stupid but its always best to check the basics before you spend a bunch of money!!!!!!!! if it does end up being something wrong wih the carb i have a nice stock one that i would part with..

11-13-2009, 09:02 PM	#33
InfiniteReality Registered User Join Date: Mar 2009 Location: Lake Charles, LA Bike: 03 Hayabusa - 06 CRF50 Gender: Male Posts: 191	Re: Big Bar Swap & Now 50 Won't crank? Dunno WTF happened, I posted the below Wed on here and now it's not here??? Problem solved! Such as freakin' easy fix and of course the last thing I checked/did... Fouled plug and I'd bet it was because of the below scenerio which fouled it and went down hill afterwards. It runs perfect and as a plus now has a clean carb too. Put big bars on, cracked throttle tube tightening it so throttle didn't work properly. I also didn't realize the new carb cap (BTW protaper throttle cable sucks, too high and hits frame) didn't come with a gasket so after it wouldn't start and I pulled it back off I realized it and put the stock one on it. Still no go....thinking the plug was pretty fouled by this point but also had new cable and billet throttle coming so of course when it came in, still wouldn't run right. Thanks for all the help and quick replies! Sorry it turned out to be so easy to fix, but glad it's running perfect again! BTW, after installed the new plug, the first kick and it was up and running again. __________________ 2003 Silver/Charcoal Suzuki Hayabusa 2006 Black/Black Honda CRF50 2008 Silver/Black Chevrolet TrailBlazer SS

11-14-2009, 04:03 AM	#34
XRshfifty Registered User Join Date: Feb 2009 Location: Portland, Or, USA Bike: '03 XR50R Gender: Male Posts: 280	Re: Big Bar Swap & Now 50 Won't crank? Its crazy how something so simple can be the hardest to figure out.... glad you got it running. NOW get ta stuntin!

11-14-2009, 09:52 AM	#35
F3 stunna Registered User Join Date: Oct 2008 Location: Rochester mn usa Bike: F3 furburger 02 xr88cc bbr frame Gender: Male Posts: 98	Re: Big Bar Swap & Now 50 Won't crank? didn't i tell you to puta new plug in it like 2 weeks ago?!?!?!?!? lol glad ya go it runnin though

11-15-2009, 08:25 AM	#36
InfiniteReality Registered User Join Date: Mar 2009 Location: Lake Charles, LA Bike: 03 Hayabusa - 06 CRF50 Gender: Male Posts: 191	Re: Big Bar Swap & Now 50 Won't crank? Yep you indeed did, should have listened and kicking myself in the ass for not. I do have spare plugs now, so first thing I'll do next time WILL BE the plug! __________________ 2003 Silver/Charcoal Suzuki Hayabusa 2006 Black/Black Honda CRF50 2008 Silver/Black Chevrolet TrailBlazer SS

11-20-2009, 11:39 AM	#37
F3 stunna Registered User Join Date: Oct 2008 Location: Rochester mn usa Bike: F3 furburger 02 xr88cc bbr frame Gender: Male Posts: 98	Re: Big Bar Swap & Now 50 Won't crank? its always the simplest shit that screws ya up. always check the basics... stock 50's shouldn't foul plugs out too often, i think i've had the same plug in my 69 honda mini trail for ten years and it still runs!!! lol if it fouls one again i would check the jetting to see ifsomeone put a bigger main in.. and i think the air screw should be out about 1 3/4-2 turns... now put a big bore kit on that shit!!!!!!