I need 2 cheapy dirt bikes and advice

[pete-blen]

Theres also these rides... mostly south island... But they have not completely forgotten the northeners........

==============> http://www.myrides.co.nz/trail-rides-xidc53532. still more NI 2015 rides to be added yet by the look of it...

I just picked up a 03 CRF150 for my 13yo... So I /we will be doing a lot more trail rides next year...

[biketimus_prime]

Hey guys my friend and I went out for a ride today. Mainly was to practice loading/ unloading the bikes, strapping them down, then ironing out any issues that may arise. Glad we did that as we have had a few issues come up.

One was that the fuel line on my friend's bike from the fuel cock to the carb was leaking so we replaced that.

My bike after a bit of riding today started heavily misfiring and wouldn't pull in the higher RPM. It would then sputter and die out as I accelerated. After I leave it for a bit then start it up it blew out black smoke and then idles fine and revs fine. But then after riding fine for a bit it'll misfire etc and die out again... If I ride it at low RPM and take it easy it'll still sputter mildly but be rideable.
Any ideas? I'm thinking maybe fuel filter and also replace spark plug for starters. Would it be a carby issue? It was meant to have been rebuilt in september and not ridden much if at all since then.

Also it had a full tank of gas but I had left it in reserve during the ride if that makes a difference.

[nzspokes]

Could be float valve in the carb. Cheap fix if it is. Does sound like it.

[unstuck]

Yeah, sounds like a float issue. Should be an easy fix.

[biketimus_prime]

Alright cheers guys. I would have thought Botany honda would have set all that correctly but I have been looking for an excuse to rip the bike apart anyway. I'll clean out the carby while I'm there too. Easier than a car that's for sure!

[unstuck]

Alright cheers guys. I would have thought Botany honda would have set all that correctly but I have been looking for an excuse to rip the bike apart anyway. I'll clean out the carby while I'm there too. Easier than a car that's for sure!

They may have set the carb correctly, but it is easy enough for some crap to get from the tank to the needle valve and stop it from seating correctly.

[biketimus_prime]

Righto I'll open it up before asking anymore questions anyway. Less talking more doing!

[nzpoontang]

Hey guys, how often do you go to that thundercross valley place? ive just scored myself a rmx250 and have very very little offroad experience, an none of my mates are keen to give it a go with me haha

[unstuck]

Hey guys, how often do you go to that thundercross valley place?
an none of my mates are keen to give it a go with me haha

Never, and you need some new mates. Fuckers.

[nzpoontang]

Hahaha yeah defiantly need some new mates, convinced one of them to get a dirt bike so he has gone an brought an 02 cr250 with all the aftermarket bits you can think of, so that should be interesting, bastards with too much money

[biketimus_prime]

Pulled apart the carby and cleaned the whole thing out, there was some debris in the float bowl but everything works as it should. I thought the high speed needle jet may be blocked but it didn't appear to be. Anyways I put it all back together and it still ran terribly like the last time I rode it.
But then after loads of dicking around with it not starting up after dying mid ride again I managed to get it started with the throttle fully open, it won't start up otherwise.
I then adjusted the idle mixture screw once it was warm and raised the idle. It seems to run okay not, no misfiring or hesitations or dying on me. I have no idea what may have caused the issues I had before. Any ideas?


Also we took apart my mate's TT225 and the boot between the engine and carburettor is fully wrecked. Can't buy it from the dealer as yamaha don't make them anymore. Any ideas on that too?
It's like this:

[1zero]

Pulled apart the carby and cleaned the whole thing out, there was some debris in the float bowl but everything works as it should. I thought the high speed needle jet may be blocked but it didn't appear to be. Anyways I put it all back together and it still ran terribly like the last time I rode it.
But then after loads of dicking around with it not starting up after dying mid ride again I managed to get it started with the throttle fully open, it won't start up otherwise.
I then adjusted the idle mixture screw once it was warm and raised the idle. It seems to run okay not, no misfiring or hesitations or dying on me. I have no idea what may have caused the issues I had before. Any ideas?


Also we took apart my mate's TT225 and the boot between the engine and carburettor is fully wrecked. Can't buy it from the dealer as yamaha don't make them anymore. Any ideas on that too?
It's like this:

You may find a similar year XT225 or TT250 etc etc may share the same boot,but your dealer should be able to tell you this or not, if all else fails try NI wreckers and then i'm sure they would be available off Ebay in the States.

[Reckless]

http://www.ebay.com/itm/YAMAHA-XT225...-/141439962625

12 bucks freight not to bad if it fits??

http://www.ebay.com/itm/YAMAHA-TT-R2...d2220a&vxp=mtr

[biketimus_prime]

Yeah the XT225 boot apparently is 1mm larger on the carburettor side but they want $148 for it!

Thanks for the ebay links, could be an option but I reckon I will try get something machined up that will take some generic piping. Just need access to a machine shop tomorrow. Tough this close to christmas, anyone have hookups on the north shore??

Even a grinder could work so I can round the full face of the engine mounting flange so I can attach some hose with a hose clamp

[george formby]

If you have the part number try this lot for a quote. http://www.jp-parts.com/?gclid=CKDw7...FcVKpgodAkafnQ

I use them almost exclusively now for parts for my DT 230. Great service and genuine parts. Probably not the cheapest option but hassle free.