well after realising that polish 70 kit was wank and didnt work, i put the original 50 back on. So it was back the same as i had it - except i might have left the needle clip a clip lower by accident - and its acting so weird now! well first of all i was arseholing down this road at full throttle and it just randomly cut out, but when i slowed down it started again and rode fine. Then i pulled over to talk to my mate, and when i was about to leave i started it up on the stand and it revved like hell. i was about to limp it home by turning the key on and off to flick between off and fullthrottle, but it worked normal again. Then as i turned into my road (after almost shitting myself from the backend kicking out just after a corner) and it just bogged down hideously and wouldnt make it up the road to my house. anyone got any ideas as to why my bikes acting like such a cunt? that lowered needle clip surely cant cause all these problems?
Needle height only affects mid throttle response. It wouldn't make your engine work randomly by having it incorrectly calibrated (assuming the carb is set up correctly). Using the same head u had on the 70cc? What else was done?
yea same head, but i checked it wasnt damaged or anything before i put it on. its had a new plug, but other than that its exactly the same as before i tried to put that 70 on
No carb settings changed? How did you end up moving the needle in the first place? Not wise leaving the same jets when moving to a 70cc?... If the original jets are in it, I would check that everything is on properly and you don't have an air leak. Sounds like a mixture issues to me...
i originally had a 76 jet and middle clip for the 50, then i put the 70 on with the same settings and it failed. so i put an 85 in and put the clip a notch lower to richen it up. it still didnt work so i put the 75 back in and put the standard barrel back on, just forgot the clip. but yea im stripping it again tomorrow to see whats up, im hoping its summat obvious like a leaky vacuum line
Need to rewiew the way you set up your carb btw! moving the needle doesn't do anything unless u have the correct jet in. Let us know what you find! It must not be something too hard as it was working before.
well it turns out the throttle cable was proper tight around the body work, so i loosened it. The fuel line had somehow come off, which kinda explains why it died at the end, but im suprised it went for aslong as it did on just the float bowl! i still dont have a clue why it died when i was flat out. i raised the clip back to the middle slot. gonna go for a test ride later when the roads are less busy and see if its sorted or destined for the fire
ok im mind fucked again.... it goes everywhere fine, except this ONE ROAD where it just splutters. its a gradual hill which flattens out at the top. it dies going up it, splutters abit going across it, then is pretty muhc fine again going down it. ive been and and down much steeper hills and its fine, its just this ONE!
narrowed it down; it only cuts out if i take it over 45, or hold it at 40 for a while - maybe a too low a heat range plug? got an 8 init at the moment. also its getting ridiculously wank fuel consumption, i just took it out and it used like 2 litres of fuel for a trip that usually uses about 1/200ml (3 or 4 mile trip to college)
yea i can full throttle it all the way up to 40, then it kinda hesitates slightly, goes to 45, then just dies asif the keys been turned to off, then it usually backfires. if i let it go back down to like 35 and rev it, itll start back up.
Tried a different plug? I would go back a few steps here. Check the fuel line/carb/admission for leaks. Change plug. Clean carb. Check plug cap/HT Lead. Just not right that you have the exact same setup as before and it doesnt work the same. Are you sure nothing is different?
checked it. manual says 0.5-0.7, and it came to 0.6..... checked the old plug to see what that was,a and it was 0.6 seriously what the fuck is wrong with this bike! nothing is differant from before and its suddenly being a cunt!
I dont know what scooter you got. But If it has an auto choke and Its not working this will cause the engine to over rev when on the stand, and big down when riding it
So it's fine with the throttle wide open its just on the over rev, correct? If so it sounds more like a transmission problem
yea i can hold it wide open all day, but soon as it gets to over rev it dies. also it sometimes dies if i hold it at 40 which is just under over rev. someone on another forum suggested my belt was sticking? ive had a thought aswell... what if my exhaust gasket is covering the port slightly, so when it hits over rev it chokes itself?
changed the exhaust gasket, checked the reeds, checked for air leaks, its all fine. go out on it and its just ridiculous. one point it bogs down and cuts out from doing 20 down a small road, then i get like 50 out of it fine down this hill but soon as i let off the throttle it starts to die, then its fine, then i get 40 and it completely dies comes to a stand still and barely starts, start it after checking everything and its fine. seriously what the fuckkk is up with this bike!?
