Dannymitchell506 Posted November 22, 2015 Share Posted November 22, 2015 I'm having trouble starting my hyper 7 tq2 , it only starts when fuel is poured down the head and runs on that fuel but as soon as its run out the engine dies? Quote Link to comment Share on other sites More sharing options...
onepastyman Posted November 22, 2015 Share Posted November 22, 2015 I'll take a punt and say the needles have been messed about with as it may be too lean to let enough fuel through. Go back to factory and go from there Quote Link to comment Share on other sites More sharing options...
chrisjw Posted November 22, 2015 Share Posted November 22, 2015 (edited) Loosen off the nut on the HSN needle (red arrow in pic in link below) & remove it......Make a mark with either a felt tip pen or scratch it on with a screwdriver, above the hole in the needle....Tighten it back up, ensuring that the fuel line nozzle lines up with the mark you made. I had this problem once before & found that the needle hole wasn't properly lined up, so the fuel was reaching the carb from the tank, but wasn't actually getting into the carb............. http://http://i933.photobucket.com/albums/ad177/chris_512/HSN Carb Needle_zps3joajrjc.jpg Edited November 22, 2015 by chrisjw Quote Link to comment Share on other sites More sharing options...
sputnik Posted November 22, 2015 Share Posted November 22, 2015 Pull the fuel line off the nipple on the exhaust pipe. clean it off and blow into it ... should push fuel from the tank into the fuel line leading to carb. Listen for airleaks - inspect for same. Before trying to run the car ... with no glow ignitor on ... hold a finger over the exhaust pipe outlet, crank motor over a bit ... should PRIME the fuel intake lines to the carb. Dont over do it ... Quote Link to comment Share on other sites More sharing options...
Dannymitchell506 Posted November 22, 2015 Author Share Posted November 22, 2015 The needles are already at factory and still nothing, I'll try taking the Hsn nut apart tomorrow and try that and I've blown the fuel through and there's no leaks etc Quote Link to comment Share on other sites More sharing options...
mickturnip Posted November 22, 2015 Share Posted November 22, 2015 Wer ya from fella .if local id gladly sort it for ya Quote Link to comment Share on other sites More sharing options...
evssv Posted November 22, 2015 Share Posted November 22, 2015 hypers have 3 needles mind.......the mid needs to b set correctly..... Quote Link to comment Share on other sites More sharing options...
sputnik Posted November 22, 2015 Share Posted November 22, 2015 12 minutes ago, evssv said: hypers have 3 needles mind.......the mid needs to b set correctly..... Quote Link to comment Share on other sites More sharing options...
evssv Posted November 22, 2015 Share Posted November 22, 2015 (edited) that b the one...I took out the high needle..looked down its shaft..lined up a whole hole on the mid shaft then put the high needle back in and never touched the mid again.....never!!..... Edited November 22, 2015 by evssv 1 Quote Link to comment Share on other sites More sharing options...
sputnik Posted November 22, 2015 Share Posted November 22, 2015 Pretty much how its done ... I take a flathead screwdriver - after I do essentially what you did - and make a mark across the midrange needle screw and the carb body and fill in the small etched mark with blk sharpie ... the hyper mid range needles are know to "walk" on ya and vibrate them selves out. Once you got the needle where ya like it and things running good. Mark it so ya know where to set it back. Once the mid is set and running ... no need to fiddle with IT again. Make all future adjustments on High / Low and idle screws. I tend to run my hyper .21 8 port mills on the warm side - 250*-270* F doesnt scare me [ on 30% nitro ] - you wont get a lot of life out of em but, they will scream if piped right and a stiff set of clutch springs to get the revs up before the clutch pops - gives some solid punch - which these mills lack [ bottom end torque ] Have fun Quote Link to comment Share on other sites More sharing options...
evssv Posted November 22, 2015 Share Posted November 22, 2015 yep...I marked mine when it was nitro.......but never moved it after it was set....then done a bl conversion on it.... Quote Link to comment Share on other sites More sharing options...
Moonwolf Posted November 23, 2015 Share Posted November 23, 2015 I had a problem with my mid range too. Stopped it moving by using a bit of ptf tape on the thread Quote Link to comment Share on other sites More sharing options...
Anthoop Posted November 24, 2015 Share Posted November 24, 2015 On 22 November 2015, sputnik said: Pretty much how its done ... I take a flathead screwdriver - after I do essentially what you did - and make a mark across the midranDannyge needle screw and the carb body and fill in the small etched mark with blk sharpie ... the hyper mid range needles are know to "walk" on ya and vib rate them selves out. Once you got the needle where ya like it and things running good. Mark it so ya know where to set it back. Once the mid is set and running ... no need to fiddle with IT again. Make all future I tend to run my hyper .21 8 port mills on the warm side - 250*-270* F doesnt scare me [ on 30% nitro ] - you wont get a lot of life out of em but, they will scream if piped right and a stiff set of clutch springs to get the revs up before the cl 18 hours ago, Moonwolf said: I had a problem with my mid range too. Stopped it moving by using a bit of ptf tape on the thread Sputnik- yes the 8 ports can run hotter and they have quite a lot less torque than the 3 and 4 port engines...it is due to port time area...the 3/4/8 port engines use the same timing for opening and closing but of course there is a difference in area....still not sure why they stopped making the 4 port. (did not mean to quote you Moonwolf)................ . Quote Link to comment Share on other sites More sharing options...
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