Grant demystifies the black art of Tire Changing and Repair to help you STAY on the road! "Very informative and practical." See the trailer 
Cotton or synth sweat-wicking t-shirts with the Horizons Unlimited logo on the front and a snappy slogan (changing every year) on the back.
Show your route on your panniers. Great conversation starter when you meet people on the road!
Motorcycle and travel books to inspire and inform you!
ll 5 DVDs with a custom printed slip case. "The series is 'free' because the tips and advice will save much more than you spend on buying the DVD's."
|
|||||||
| Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions. |
 |
|
|
LinkBack | Thread Tools | Display Modes |
|
#1
17 May 2009
|
|||
|
|||
|
starting question
Hi guys,
After hours of cleaning and searching for parts, Iv finally re-assembled my bike... to an extent anyway. I tried to start it today with no joy. Iv put a brand new battery in it and its turning over no problem bt not firring. The spark is ok and compression os OK (although not properly tested, only by hand). I think the problem is with the inlet rubbers as they are very worn and I cn see them flapping as the engine turns over. would this cause it not to fire at all or would yo expect it to still fire badly? thanks guys, Rob 
|
|
#2
18 May 2009
|
||||
|
||||
|
if your getting good spark and no signs of it firing then your probably not getting fuel, those inlet rubbers are probably allowing way too much air into the motor.
you will need to get them rubbers sorted out before you run it anyway as its going to run too lean and you risk burning valves and damaging the piston. oe rubbers are expensive try somewhere like wemoto.com
__________________
XT 630 SUPERMOTO  GSXR750L  KMX200  RF900 & GSX400X Impulse Projects 3.9 V8 Rangerover
|
|
#3
18 May 2009
|
|||
|
|||
|
cheers mate, iv ordered some new ones...watch this space!
am I right in thinking that I wont be doing any harm by starting it without that 2nd rubber from the air box as the 2nd carb doesnt open till it gets to higher revs, so if im just starting it and letting it idle it wont open anyway. havent managed to find the air box rubbers on the net and I expect yamha will charge something silly so I was hoping to wait until something comes up on ebay. Rob
|
|
#4
18 May 2009
|
||||
|
||||
|
it should be fine starting it without the rubber hose on.
you could always stick some duct tape over it if you're worried about any dirt getting in till you get a hose, stick some over the hose hole in the air box too as any dirt getting in through there will be the engine side of the filter and could be drawn in through the hose thats fitted. the hose wasn't that expensive it was £13.69+vat a couple of years ago part no i have is 3tb144540000 joint.
__________________
XT 630 SUPERMOTO GSXR750L KMX200 RF900 & GSX400X Impulse Projects 3.9 V8 Rangerover
|
|
#5
19 May 2009
|
|||
|
|||
|
new inlet rubbers worked a treat! with a little persuasion from easy start she fired up nicely. havent got it to idle properly yet but didnt have chance to spend too much time with it.
cheers for the advice, Rob
|
|
#6
19 May 2009
|
||||
|
||||
|
once its breathing properly through the air box it will be a lot easier to set the idle up correctly.
even tho the std yam carb setup is supposed to only open up fully with the throttle wide open at upper end of the rev range it will still have some small effect at idle if all the hoses are not in place on that secondary throttle.
__________________
XT 630 SUPERMOTO GSXR750L KMX200 RF900 & GSX400X Impulse Projects 3.9 V8 Rangerover
|
|
«
Previous Thread
|
Next Thread
»
| Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests) | |
| Thread Tools | |
| Display Modes | |
Linear Mode
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| LC4 hot starting | GS Tone | KTM Tech | 2 | 11 Jun 2008 11:41 |
| kle 500 non starting | kwakchris22 | Kawasaki | 9 | 12 Dec 2007 18:15 |
| 3AJ not starting | Basspete | Yamaha Tech | 19 | 6 May 2007 02:27 |
| 3AJ Starting | Dave O | Yamaha Tech | 1 | 12 Jul 2006 13:07 |
| Bad starting on a 2.5N/A 90 | Tony Robson | 4WD Overland Tech | 1 | 10 Nov 2003 04:42 |
All times are GMT +1. The time now is 22:53.
