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Cant Get My Bike To Start

jimmy1989

By jimmy1989
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jimmy1989 Trials Newbie

jimmy1989

Posted
Posted

Hi,

I have recently bought a Sherco 2.5 2002/03 and have set about replacing the little end. This has been done with no problems but have been unable to get the bike to start since. There doesnt seem to be any fuel getting to the sparkplug as its virtually dry when I take it out (it does have a couple of spots of fuel on but I thought it should be drenched?) I have taken the carb apart and this is definately getting fuel as the float bowl is full. There is definately a spark as well and have come to a dead end.

Can anyone help as Im tempted to take the bike and roll it off a big hill at the moment. Only been out twice since purchase 3 months ago... :shutit:

James

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harmertrials Too Much Spare Time

harmertrials

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Posted

Hi there mate, I have a sherco 2.9 2002 which lucky for me has had very few problems... But, I know this may sound odd... Have you checked the air filter? Because on one of my gassers I have had similar problems with my air filter, I would also check that you haven't cross threaded the spark plug when inserting it... Oh and also make sure the rad has a decent amount of coolant in it.

Its hard to say what the problem is whithout actually seeing the bike itself, so maybe have a ring around a few shops (haven trials sport) for example because they deal with sherco.

p.s. it could just be that dirt has got clogged up where you insert the spark plug...

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koxxtrials Trials Dude

koxxtrials

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Posted
Hi,

I have recently bought a Sherco 2.5 2002/03 and have set about replacing the little end. This has been done with no problems but have been unable to get the bike to start since. There doesnt seem to be any fuel getting to the sparkplug as its virtually dry when I take it out (it does have a couple of spots of fuel on but I thought it should be drenched?) I have taken the carb apart and this is definately getting fuel as the float bowl is full. There is definately a spark as well and have come to a dead end.

Can anyone help as Im tempted to take the bike and roll it off a big hill at the moment. Only been out twice since purchase 3 months ago... :shutit:

James

recently have you messed about with the bike because that's what people sometimes do and then they can't get them to start your better off taking it malcolm rathmell sport or a local decent sherco dealer maybe it has something to do with the mixture of 2-stroke or most likely to be the spark plug try replacing it that should do the trick

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Muel Post Whore

Muel

Posted
Posted (edited)
recently have you messed about with the bike because that's what people sometimes do and then they can't get them to start your better off taking it malcolm rathmell sport or a local decent sherco dealer maybe it has something to do with the mixture of 2-stroke or most likely to be the spark plug try replacing it that should do the trick

Do you have any idea what your talking about? That Raga Rep of yours is going to be dust in about 2 weeks.

He said there is a spark, that means the spark is fine.

Have you checked the ignition timing? after checking for a spark etc and looking at the fueling side of things, that should be the next thing on your list.

EDIT: Also, just because there is petrol in the float bowl doesn't meen it's coming up the main jet OK. Strip it down and use one of the breathers do blow through every fuel/air way. My TY was running really rich once because a tiny piece of the air filter clogged up on of the air ways. In a TY, the air mixes with the fuel before it comes up the main jet, using an emulsion chamber.

You only get a little bit in, but it means that as the fuel goes through the main jet, it compresses slightly because of the air in it, so it squirts out of the main jet, which helps it to mix thoroughly in with the main air flow coming from the air box.

Edited by El Muelio
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koxxtrials Trials Dude

koxxtrials

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Do you have any idea what your talking about? That Raga Rep of yours is going to be dust in about 2 weeks.

He said there is a spark, that means the spark is fine.

Have you checked the ignition timing? after checking for a spark etc and looking at the fueling side of things, that should be the next thing on your list.

EDIT: Also, just because there is petrol in the float bowl doesn't meen it's coming up the main jet OK. Strip it down and use one of the breathers do blow through every fuel/air way. My TY was running really rich once because a tiny piece of the air filter clogged up on of the air ways. In a TY, the air mixes with the fuel before it comes up the main jet, using an emulsion chamber.

You only get a little bit in, but it means that as the fuel goes through the main jet, it compresses slightly because of the air in it, so it squirts out of the main jet, which helps it to mix thoroughly in with the main air flow coming from the air box.

my raga rep is the ultimate 125 trials bike have a look on B an B road and trials website and will maintain that until 2009 when the montesa 125 4rt but i doubt it will be much better my bike is so smooth

Edited by koxxtrials
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harmertrials Too Much Spare Time

harmertrials

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my raga rep is the ultimate 125 trials bike have a look on B an B road and trials website and will maintain that until 2009 when the montesa 125 4rt but i doubt it will be much better my bike is so smooth

I think you will find that he was reffering to your know how - Having the best bike out there means nothing, if you don't know how to maintain it properly it will run like a bag of spuds.

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wrongsideof40 Trials Monkey

wrongsideof40

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Just a thought did you remove the reeds when you removed the head ? make sure they are seated correctly and like was said earlier piston, rings and compression. If these are 100% right and you are sure the carb setup is 100% correct then replace the plug if its still a no go the check the timming. Its all quite easy stuff to check and correct.

Gas Gas for the win best trials bike ever.

:lol: Your having a laugh....

Edited by wrongsideof40
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Muel Post Whore

Muel

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Yamaha made the best trials bike ever, in the form of mine. :lol:

I'm being serious! I have rideen GasGas's that just piss all over everything you ever point them at, but your constatly worried about them, and they aren't really any good if you like hooning around.

I love going fast and jumping on my bike, which I can't do on a modern bike because of the shorter wheelbase.

Don't tell me I should have got a motorcrosser, my bike is perfect, the only thing it needs is a bit more power, so I can pull 5th gear wheelies more easily. :P

It's old, heavy, rattley, and not very powerful, but I would choose it over a modern bike any day because it's so much more fun to ride. Modern bikes are brilliant in competitions and at going up rock's and stuff, but shite at doing anything else, slow wheelies are a breeze, but fast ones sitting down are impossible.

They are harder to do powerslides on as well, which I love doing on my bike.

You can't sit down either with you wieght towards the front, so going round corners is a bit of a task.

My TY does everything I want it to do, it just needs a bigger engine, (planned), and an extra gear. 6 just isn't enough.

I could just get a trail bike, but they are too extreme, I my bike does everything. Even tarmac.

One bad thing though, stoppies are impossible.

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koxxtrials Trials Dude

koxxtrials

Posted
Posted (edited)
Yamaha made the best trials bike ever, in the form of mine. :lol:

I'm being serious! I have rideen GasGas's that just piss all over everything you ever point them at, but your constatly worried about them, and they aren't really any good if you like hooning around.

I love going fast and jumping on my bike, which I can't do on a modern bike because of the shorter wheelbase.

Don't tell me I should have got a motorcrosser, my bike is perfect, the only thing it needs is a bit more power, so I can pull 5th gear wheelies more easily. :P

It's old, heavy, rattley, and not very powerful, but I would choose it over a modern bike any day because it's so much more fun to ride. Modern bikes are brilliant in competitions and at going up rock's and stuff, but shite at doing anything else, slow wheelies are a breeze, but fast ones sitting down are impossible.

They are harder to do powerslides on as well, which I love doing on my bike.

You can't sit down either with you wieght towards the front, so going round corners is a bit of a task.

My TY does everything I want it to do, it just needs a bigger engine, (planned), and an extra gear. 6 just isn't enough.

I could just get a trail bike, but they are too extreme, I my bike does everything. Even tarmac.

One bad thing though, stoppies are impossible.

stoppies and wheelies on modern trials bikes are easy sit down wheelies all you do is rev it a little bit and then pop the clutch and sit on the back mud guard and stoppies are just like on a pushbike but with more weight have a look at some of my cowm quarry vids under sherco222

cowm vids

Edited by koxxtrials
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jsy trials matt Trials Dude

jsy trials matt

Posted
Posted (edited)

have u checked all the usuall stuff on the carb. ( are the jets clear, does the slide move freeley and do the floats move freeley as well )

HAVE YOU TURNED ON THE FUEL TAP!!!!

jsy matt

Yeh if the kid wanted a shit bike.

Gas Gas for the win best trials bike ever.

quite clearly not tom as rich still beats u on the sherco

Edited by jsy trials matt
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Muel Post Whore

Muel

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Posted
stoppies and wheelies on modern trials bikes are easy sit down wheelies all you do is rev it a little bit and then pop the clutch and sit on the back mud guard and stoppies are just like on a pushbike but with more weight have a look at some of my cowm quarry vids under sherco222

cowm vids

Balls. You have never ridden a TY, when you grow up and get strong enough to chuck one about, then you will know what I am talking about.

Who really cares, its not what you got its how you ride it.

I agree, I regularly beat the modern bike boys at competitions, well, some of them.

I always beat the top guys to the next section though. :P

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