• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

Bike not completely starting

timebombprod

timebombprod

Forum Sage
The engine is moving when I press the starter, u hear it, got a couple pops, but it won?t just crank up. Don?t wanna burn my starter out, any ideas of what?s up?
 
If you've just put dry carbs on, You have to leave the bike on PRIME a good long while, is my experience. That assumes your choke/enricher and all else is functioning correctly AND that the choke cable is indeed pulling the "choke/enricher" slide all the way out.
 
I?ll say I see some oil at the bottom of the air box pieces, no drips but it?s there. If it overflowed what should I do? Oil is well under full line now since I?ve had the engine move, I?ll get pics up in a sec
 
Also how would I test a fuel valve? Mines a pretty cheap one an. Gorm once my battery is charged fully I?ll be doing just that as well.
 
timebombprod said:
Also how would I test a fuel valve? Mines a pretty cheap one an. Gorm once my battery is charged fully I?ll be doing just that as well.
Click to expand...

Oil in the airbox? Was it there before you tried turning it over?

Checking the petcock is easy, remove the fuel line and open it up. If gas flows out you can assume it's working, be sure to have a container handy to catch any gas that flows out.
 
timebombprod said:
Also how would I test a fuel valve? Mines a pretty cheap one an. Gorm once my battery is charged fully I’ll be doing just that as well.
Click to expand...

Two ways: get a jar to catch gas, take the fuel line off the tap, turn to PRIME. You can test the vacuum function too. Get a pice of hose to suit the vacuum nipple and suck on that. A large "veterinary syringe" is more elegant applying suction for $2 or $3 bucks

second way: first is better IMO-less mess :get a flat lid/tray that fits under the carbs but is deep enough to hold a whole bowl full of gas and More...crack open a carb bowl drain screw...not all the way if you can help it because it's a compact place if you want to put the screw back in in a rush...
 
Last edited:
These use oil-soaked foam as an air filter. Oil in the airbox could be from that. You should clean it in kerosene/similar paint-thinner and reoil it if you haven't already.
 
timebombprod said:
The engine is moving when I press the starter, u hear it, got a couple pops, but it won?t just crank up. Don?t wanna burn my starter out, any ideas of what?s up?
Click to expand...

Please provide, in this post, more background info, recent history etecera.

In this post we dont know if was running fine yesterday, or if has been sitting for 5 years, or if you are just now finishing significant changes.
(seems that some folks do know some of that)
 
I take it you have fuel going to the carbs and a decent spark at the plugs?
 
this bikes been sitting 9 months, the oil was from the air filter itself checked that i think its from air pulling in getting some oil to come out of filter. oiled it the other day brand new air filter, i think my issue is what gormin said i dont have enough fuel in carbs, when i pressed starter engine was forsure giving a constant tone of a small rumble and u could see stuff coming out exhaust, gas or heat not smoke looked like gas. i have a extremely small sweat from the fuel valve wouldnt even notice it if you stared waiting for a drip. the prime function works forsure, and when i pulled my fuel line off it gas came out, but i have to test my vacuum line. wiating for battery to be charged but ill say it has to be small fixes nothing major, oil just cycled through engine i believe but not in airbox atleast not the half with the filter.

also airbox has hole cut out cuz some dumbass didnt fit the master cylinder correctly before me, so theres that too, decent size square whole maybe an inch and a half long and half an inch wide.



how long should i prime the carbs?
 
could unscrew float bowl a bit to see its reaching there, and ill do a spark test but i believe its all good i just think a constant fuel supply wasnt there enough. if theres any other suggestions ill take them in.
 
With my '750 I only have to prime for a couple of seconds. Just long enough to get a reservoir of fuel in the carb bowls. Too long and you risk flooding the carbs.
Make sure you have a decent battery as well. If you have tried turning the engine over too many times and need to keep charging the battery then it might be best to get a fresh battery.
Without wishing to be rude, try posting one issue at a time in each thread. It gets a bit confusing when multiple replies to multiple issues are all mixed together.

Big thumbs up for getting this far. Having read your other posts you seem to be getting there, slowly, but still getting there.
 
not rude at all, didnt seperate them much so yeah its just a mix of whats goin on not really organized.


hers one more thing id like to ask, so with my throttle cable, if i put it in the first hole of my throttle tube ( less length required) itll be loose the whole way tightening from the side next to the handlebar, if i put the cable on the hole that makes it stretch more, it sits well and barely any play before throttle cable starts getting pulled, but the whole frame piece that opens ur valves isnt sitting straight, just up a little but i dont know if its affecting my bike starting. heres some pics not the best view but u can see its a bit angled.
 
also airbox has hole cut out
Click to expand...
tape it over for now...By the way, the airbox is supposed to suck oil vapour from valvetrain through the hose on the top of the valve cover and reburn it in engine. I've never seen a pool from this vapour...but maybe it's a possible where the engine is overfilled and the cam chain is really bringing a lot of oil up.... Easy to check- just pull the breather and see if it's drippy.......
 
Gorminrider said:
tape it over for now...By the way, the airbox is supposed to suck oil vapour from valvetrain through the hose on the top of the valve cover and reburn it in engine. I've never seen a pool from this vapour...but maybe it's a possible where the engine is overfilled and the cam chain is really bringing a lot of oil up.... Easy to check- just pull the breather and see if it's drippy.......
Click to expand...

checked tube, no oil at all so thats not an issue. curious though, what the part on the bottom of my airbox that looks just like the nipple looking end that u connect ur breather tube too, maybe i dont have everything connected, im guessing its a drain plug incase airbox is flooded.
 
Throttle cable at handlebar? turn the handle bar adjuster all the way in. Next, goto carbs and you'll find a big knob. Turn it looser so that actual throttle arm rests on it's tab ..the throttle is now entirely closed to it's lowest setting. DO NOT touch the screw+locknut seen in the picture on top. That's a synching screw. You should alredy have bench synched them when you took the carbs out, i hope...

Now, it should be fairly obvious where the end goes in your twist grip...the cable will have some visible slack when the throttle is fully closed. Adjust the big knob with the bike when warmed to a low idle and then at the grip to fine tune the slack out you just added to the cable by turning the big knob. When you ride the bike around truly warmed you'll likely do this again, aiming for 1000 to 1200 rpm at idle....
 
Gorminrider said:
Throttle cable at handlebar? turn the handle bar adjuster all the way in. Next, goto carbs and you'll find a big knob. Turn it looser so that actual throttle arm rests on it's tab ..the throttle is now entirely closed to it's lowest setting. DO NOT touch the screw+locknut seen in the picture on top. That's a synching screw. You should alredy have bench synched them when you took the carbs out, i hope...

Now, it should be fairly obvious where the end goes in your twist grip...the cable will have some visible slack when the throttle is fully closed. Adjust the big knob with the bike when warmed to a low idle and then at the grip to fine tune the slack out you just added to the cable by turning the big knob. When you ride the bike around truly warmed you'll likely do this again, aiming for 1000 to 1200 rpm at idle....
Click to expand...

checked cable, all is good now when i twist throttle from nothing the cable itself doesnt move in the beginning, but there is for sure slack in the cable when rested, i think the rack just doesnt sit fully at a 90 degree angle and is always a bit up, no i havent messed with those screws at all i know better than to mess with something i dont know about.

will be doing all that when it starts, that was the idea, but things dont always go as planned ofcourse.
 
As to the air filter, you mentioned cleaning and oiling it. The manual for my bike says to use a capful of oil after cleaning. Perhaps you used a bit too much?
 
LAB3 said:
As to the air filter, you mentioned cleaning and oiling it. The manual for my bike says to use a capful of oil after cleaning. Perhaps you used a bit too much?
Click to expand...

yeah i just dumped it on there but i did rag it out and get alot of excess out, may re rag it tomorrow getting anymore, but as for tonight im done messing with it just gotta be simple reasons it didnt start.
 
timebombprod said:
yeah i just dumped it on there but i did rag it out and get alot of excess out, may re rag it tomorrow getting anymore, but as for tonight im done messing with it just gotta be simple reasons it didnt start.
Click to expand...

Too much oil is going to plug up all the mini holes in that foam. I'd be inclined to clean it up and follow the instructions to get it right. That and taping up that hole and I'll bet you have a better chance of it running.
 
You must log in or register to reply here.
Back
Top