help please with bike.

hawker27

hello i have a problem with my bike,when i start it up and pull in clutch and go to put it in 1st gear it conks out,some times when it does,nt conk out it kicks in to 1st gear a real bite like a big jerk or knock.

also i tryed adjusting the screw at the clutch and at one point i was putting it in gear(s) and it would,nt move at all,so i put the adjuster back to where it was and i could get me gears again but same story with it when i go to put it in to 1st a big kick in to gear and conked out.

somtimes to when i do get it in to 1st gear to drive and then try to put it in neutral it seems to jump past neutral can be a bitch.

do i have a clutch going on my bike?.or is it more severe?.

would really appreciate help on this thanks.

madrab

hmm, will the engine start if its in gear & the clutch is held in? if not do you have a sidestand cut out switch? (it will cut the engine out if the side stand is still down while you try to drive away) that might be faulty

with regards to your other problem, does the clutch drag or slip?

hawker27

no the engine won,t start if i hold in the clutch while the bike is in gear,but once or twice it did actually start while i held in clutch and bike was in gear,but almost every time it won,t.i don,t have a sidestand cut out switch.
only have a red switch near the trottle handle that switches off the engine.

how u mean by drag or slip,bike is currently not insured for the road so i don,t know about the drag or slip with the clutch.

wonder what my problem is?.

definately sumthing up sum where as it really kicks in to 1st gear like a big knock noise

madrab wrote:

hmm, will the engine start if its in gear & the clutch is held in? if not do you have a sidestand cut out switch? (it will cut the engine out if the side stand is still down while you try to drive away) that might be faulty

with regards to your other problem, does the clutch drag or slip?

madrab

Does it try to start but cant ie having trouble turning the engine; or is there no responce when you push the start button?

If its the first one it sounds like your clutch is the problem
If its the second one then it sounds like a safety cutout switch

what bike is it?

By drag i mean when you pull in the clutch, it is still engaged & the bike will move, & slip is when the clutch is out but not transferring the driving load fully & will slip when you accelerate

hawker27

madrab m8 i just had the bike sitting in shed and go in and sit on it and start it up then i pull in clutch and put it in to first and it conks out,never occured to me as what u said earlier that if the foot stand is down its a safety cut out what a twat i am,but by god am i relieved as i taught i could of had a clutch or gear box problem.

i used to drive older bikes like h-100,gp100 and the never had that sort of safety stuff on them lol i often took of on one with the foot stand down lol.

and yes when the foot stand is up and when i pull in clutch with bike in gear it starts no problem at all.

but i am still not really happy cause when i put it in 1st gear there sumtimes can be a kick in to gear like a knock,but apart from that every thing is a1.
and thank you for your help m8 cheers.

ANTO D10 DUB

sound's like a worn out cable or cluche plates .
try ajusting it at the other end of the cable if it has one "where the lever is on the engine casing" then ajust it on the handlebar .

Tomohawk

Old and tired engine oil inside Vespa PX geared scooters can cause gear selecting problems. Try change the oil and put in new stuff. Also if you overfill it it can cause the clutch action to be very stiff and also give shifting problems. (can led to blown seals as there is too much pressure inside the engine casing also)

Old gear box oil inside motorbike gearboxes can also give similar problems. When was the last time the oil was renewed in your bike in the shed hawker27? New oil will only cost you a couple of euros a litre and will improve gear shifting and prolong your engine life as well.

How about a picture of the bike in the shed? I'm curious as to what u got now.

Esel

Bigger Hondas with straight-cut gears used to give a major 'clunk' when first gear was engaged. Is it a Honda by any chance?

MunsterCycling

They still do esel...

Hotblack Desiato

ANTO D10 DUB wrote:

sound's like a worn out cable or cluche plates .
try ajusting it at the other end of the cable if it has one "where the lever is on the engine casing" then ajust it on the handlebar .

Not the clutch plates, as it sounds like it's dragging (i.e. not disengaging all the way).
Could be a dodgy cable but only if it's adjusted to the max and still too slack (for this to happen, usually it would be frayed at one end and just about to break.) Or, just possibly maybe, the cable is the wrong one for the bike.

Most likely thing is that it's just adjusted wrong, the OP has already been fiddling with it
Best thing for the OP to do is to get a handbook or Haynes manual and find out the proper procedure for adjusting it. Also all the other routine maintenance things (daily / weekly checks.)

Most 4-stroke bikes don't have separate gearbox oil, but if the bike's been standing for a while the engine oil should definitely be changed anyway, acids and condensation build up in it when it's left standing and both of these can corrode engine parts.

sutty

Yeah, All newer bikes (15 or 20 years) have the kickstand kill switch. As for the clunk. Most "big bikes" will do that. Its just cause the engin is cold. Once the bike gets driven for a few min, it should start to ease up when in first gear.

hawker27

thanks for all the replys lads,my bike is a 00 yamaha virago 125cc only bought it 2 weeks ago and previous owner had been driving it for the last year,also he said he maintained the bike with regular oil changes and by looking at it lads its in immaculate condition.

i got back on to him about this clunking when u go to put it in 1st gear and he was very co operative.but the other day i got a fright while adjusting the cable at the clutch i let out the adjuster nearly the whole way and pulled in clutch and put it in gear and it would,nt move at all in any gear,so i screwed the adjuster back in just near full full and i immediately got my gears back,is this a worrying sign?.

mickbyrne

It sounds to me that you know as much about bike mechanics as I do, zero, do you have a friend or any one that could have a look at it. My wifes cousin is a mechanic so he looks at mine if I get a fright with it, otherwise I get it serviced regulary in the bike shop.
You should run it for a while to get the engine and fluids warmed up, that way gear changes should be easier.
My last bike was terrible going into first gear. I used to roll the bike while engaging the first gear so the the gear box would be rotating and the clunk would be less severe. Once the bike was running at its normal temp. engaging first gear was no problem at all

sutty

hawker27 wrote:

thanks for all the replys lads,my bike is a 00 yamaha virago 125cc only bought it 2 weeks ago and previous owner had been driving it for the last year,also he said he maintained the bike with regular oil changes and by looking at it lads its in immaculate condition.

Tehehe... I had a virago 125 a few years back. Always had trouble with it going into second gear when I wanted it in Neutral. Still though, I dont recall a large clunk. But then, I am comparing it to a Ducatis dry slipper cluch. lol they had to make it hydrolic to make gear changes easier. What are you compaing the clunck too? IE: was it a smaller bike with gears. If I recall the 1st gear on the Virago's is quite tense. IE, lots of turqe in it.

hawker27

ye the previous owner said that as well that a lot if not all the viragos make a knock or kick in to 1st gear and ye comin up from 1st can skip past neutral and in to second but from second down no bother getting neutral.

Owen

Try my Duke 916, Neutral is quite the expert at hide and go seek!

madrab

ned78 wrote:

Try my Duke 916, Neutral is quite the expert at hide and go seek!

ill take that challenge