Hi folks. Bike wont start. Hoping you may have some tips. Ive hd the tank/airbox etc off to renew the air filter and spark plugs. Put it all back together and it wont start. It seems a bit like the 'hard start' problem and I suspect that its taking time to get fuel back into the system....but Ive tried starting about 20 times now including several WOT attempts and ...nothing. Smelling like its a bit flooded now. Any tips greatfully received. Cheers
HELP bike wont start
- Thread starter stutrump
- Start date
EricV
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First thing is to look where you've been. Did you get the breather hose connected under the air box? Did you tighten the airbox to the throttle bodies? Neither of these would prevent the bike from starting, but I may as well cover them now.
Did you plug the air temp sensor back in to the air box? (that would prevent the bike from starting)
Is there ANY chance you left something in between the air box and throttle bodies, like a rag or paper towel stuffed in the TBs to prevent you from dropping anything in?
If you can, charge the battery so it's topped off. Even if you find one of the above issues, it's flooded now.
If you can't charge the battery, jump the bike from your car. But first, please describe what happened when you were attempting to start it before?
Did it just crank w/o any firing of the cylinders?
The classic hard start can still run the battery down before the bike starts, even if you do everything right, going to WOT or even just half throttle while cranking.
If you feel you re-assembled everything well and none of the above rings a bell in terms of a problem, jump the bike off another battery and crank it with half throttle. Its flooded, so it may take a few to several times, (don't crank for more than 20 seconds at a time or so to avoid overheating the starter motor), but it should fire up. I just had to do this last weekend as I did a foolish thing and caused the problem for myself.
Did you plug the air temp sensor back in to the air box? (that would prevent the bike from starting)
Is there ANY chance you left something in between the air box and throttle bodies, like a rag or paper towel stuffed in the TBs to prevent you from dropping anything in?
If you can, charge the battery so it's topped off. Even if you find one of the above issues, it's flooded now.
If you can't charge the battery, jump the bike from your car. But first, please describe what happened when you were attempting to start it before?
Did it just crank w/o any firing of the cylinders?
The classic hard start can still run the battery down before the bike starts, even if you do everything right, going to WOT or even just half throttle while cranking.
If you feel you re-assembled everything well and none of the above rings a bell in terms of a problem, jump the bike off another battery and crank it with half throttle. Its flooded, so it may take a few to several times, (don't crank for more than 20 seconds at a time or so to avoid overheating the starter motor), but it should fire up. I just had to do this last weekend as I did a foolish thing and caused the problem for myself.
What Eric said. Grab a video from your cell phone if possible. I'm not sure if it's firing up for a moment, then dying, or not firing at all, or...
Can you clarify on the sentences where you're not sure if it's getting fuel, but yet smells like its flooded?
If you've got a service manual, refer to 8-34 on how to see if you've got any diagnostic codes.
Can you clarify on the sentences where you're not sure if it's getting fuel, but yet smells like its flooded?
If you've got a service manual, refer to 8-34 on how to see if you've got any diagnostic codes.
Thanks both of you. Ericv...thanks for all the ideas. Yes..all things are connecte...airbox sensor etc etc. When i first hit start (after putting it all back together) it did fire but stalled almost immediately...as if it was just running on fuel already in the system? ( on my old dirt bikes it would do that as it used up a bit of fuel already in the carbies). Then every time I tried to start it it turns over fine but doesnt fire and eventually after many WOT attempts it was smelling like its flooded. Its late dark wet n cold now but I will try starting it via jump leads from the car tmrw. Thanks again guys.
rem
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I'm not trying to be a wise guy here, old son, but be sure to check that 1) someone didn't activate the kill switch and 2) you have gas. It's worth a mention. Also, any chance of water in the gas ??? Good luck. R ::008::
EricV
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stu - Sounds like you have a good handle on things at this point. The only other common issue I can think of that relates to the work you've done is the vent lines from the bottom of the tank getting kinked. You should have needed to pull them loose from the clip retainer at the bottom end, in order to raise the tank. When dropping the tank back down, sometimes it's necessary to gently pull the hoses back down before clipping them back into the retainer.
Just another thing to double check unless you recall doing that. Odds are good it's just the 'normal' hard start and with the extra battery power from the car, it will crank for a bit and then start with a little complaint.
Tomorrow, try the first start as a normal one w/o throttle or anything unusual. If it was just flooded, you never know, it may fire right up. What is believed to happen on occasion is that the extra gas runs down the cylinder walls and causes it to wash off the oil from the rings and cylinder walls, significantly reducing compression and making it hard to start.
Best of luck tomorrow!
Just another thing to double check unless you recall doing that. Odds are good it's just the 'normal' hard start and with the extra battery power from the car, it will crank for a bit and then start with a little complaint.
Tomorrow, try the first start as a normal one w/o throttle or anything unusual. If it was just flooded, you never know, it may fire right up. What is believed to happen on occasion is that the extra gas runs down the cylinder walls and causes it to wash off the oil from the rings and cylinder walls, significantly reducing compression and making it hard to start.
Best of luck tomorrow!
MidlifeMotor
Member
That's not being a wise guy. When I had a V Star 650 one of the forum members started his wife's bike and it died minutes later after idling. He tried everything to get it started and was beside himself trying to figure out what was wrong. In the end, after lots of great advice from forum members, it came down to the petcock was turned to the "off" position. Seems his wife actually listened at her MSF Basic Rider Course instructor about always turning fuel off after riding. Since he never used the petcock on his bike, he never thought to check it.rem said:
Thanks rem...all good points, but yes I checked those things. Thanks Eric...going outside now to try again and will report back later. Its actually not raining for the first time in what feels like months. Maybe it will be my lucky day. More soon.
EricV
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Congrats! Go for a ride to celebrate. ::015::
Wow. This sounds like a particularly extreme case of the hard start issue.
Good deal that got you up & running again Stu. I believe that is Tpak's workaround that gets to chalk up another
save. ::003:: This gremlin has bit me twice now & nothing but pulling the fuse to clear the system would work. Will
be interesting to see if the '14 Gen2 S10 will be haunted by this issue. If/when this accursed problem is finally nailed
by a guru it will be very good to know the exact root cause. With my unit its always happened from a cold start, outside
temp around 45*. A educated guess its ECU/FI pressure regulator related. If Im wrong oh well, wouldnt be the first
time. For now, its just a rare inconvenience.
save. ::003:: This gremlin has bit me twice now & nothing but pulling the fuse to clear the system would work. Will
be interesting to see if the '14 Gen2 S10 will be haunted by this issue. If/when this accursed problem is finally nailed
by a guru it will be very good to know the exact root cause. With my unit its always happened from a cold start, outside
temp around 45*. A educated guess its ECU/FI pressure regulator related. If Im wrong oh well, wouldnt be the first
time. For now, its just a rare inconvenience.
Hi Guys,
Lately I always encounter hard starting, don't really understand what causing the problem, but its only happen when the bike was store for more than 2 weeks or so.
If I start it every now and then, it is easily to get it fire. Anyone here have similar problem? Thank you.
Regards,
KC
Lately I always encounter hard starting, don't really understand what causing the problem, but its only happen when the bike was store for more than 2 weeks or so.
If I start it every now and then, it is easily to get it fire. Anyone here have similar problem? Thank you.
Regards,
KC
Koinz
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When you say "lately" , is this a new problem or has it always done this? Just wondering if you just need some maintenance done like plugs, airfilter, some sort of fuel stabilizer, etc.....kchow24 said:
FCELIS
Happiness comes two wheeled
Just to give this topic an update, I also experienced same prob, no WOT working and started as a rattle when engine running idle stopping for fueling, i had to be pulled by a truck home (yes it was a shame).
It left me several times in the street and then by magic It started, (Ive shaken it just beaause got nothing left to loose) and started by miracle.
That was till it definitely left me on the street and have to get pulled home. As I was being pulled, ive tried to start it in 3rd (nothing) so wasn't lo batt.
Sent it to Yam Dealership, good news, it was bad fuel (dirty) stuck in low tank which make me remember that ive used reserve very long one week later, so thats how dirt got into fuel pump.
They took out the gas, cleaned the tank completely and also cleaned the inner of the fuel pump (which has no fuel filter but inside of the pump a tea bag lookalike thing was stopping the dirt, so they put some injector cleaner for a night and voila now its clean).
Put it all back and started inmediately, no more hard start from now, and best of all, no yamaha reliability issues (really was very dissapointed bcause i thought with buying s10 i got rid of shitty servicing and reliability from my old KTM 640 adv, so started getting paranoid again::010::
Yes some may think getting something like a gas filter inside the tank somehow may fix the prob, the truth is taht this kind of prob is not so common but very annoying so what u might do best is to bring to service the S10 and ask every time to clean the tank (even if not dirty) and also check the tea bag of the fuel pump (clean it better).
Now im happy and confident it wont let me down again.
Saludos desde Chile ::021:: ::022::
It left me several times in the street and then by magic It started, (Ive shaken it just beaause got nothing left to loose) and started by miracle.
That was till it definitely left me on the street and have to get pulled home. As I was being pulled, ive tried to start it in 3rd (nothing) so wasn't lo batt.
Sent it to Yam Dealership, good news, it was bad fuel (dirty) stuck in low tank which make me remember that ive used reserve very long one week later, so thats how dirt got into fuel pump.
They took out the gas, cleaned the tank completely and also cleaned the inner of the fuel pump (which has no fuel filter but inside of the pump a tea bag lookalike thing was stopping the dirt, so they put some injector cleaner for a night and voila now its clean).
Put it all back and started inmediately, no more hard start from now, and best of all, no yamaha reliability issues (really was very dissapointed bcause i thought with buying s10 i got rid of shitty servicing and reliability from my old KTM 640 adv, so started getting paranoid again::010::
Yes some may think getting something like a gas filter inside the tank somehow may fix the prob, the truth is taht this kind of prob is not so common but very annoying so what u might do best is to bring to service the S10 and ask every time to clean the tank (even if not dirty) and also check the tea bag of the fuel pump (clean it better).
Now im happy and confident it wont let me down again.
Saludos desde Chile ::021:: ::022::