ravenguard Posted January 10, 2011 Share Posted January 10, 2011 hi all need some help please ,just bought a hpi 4.6 engine from Nitroholic checked it over and seems fine apart from the carb seems loose ,tryed tighting witch seems to work. so fitted in the savvy all good so far , starts ok but dies when i take the glowstart off ,but after about 5 seconds it stays running ,when i go to rev it ,it revs for about a second then goes to high revs but the carb doesnt move,hit the brake and it idols again .seems to idol quite high but im clued on hpi engines so may be normal . all in all seems like theres not alot of responce from the carb. Quote Link to comment Share on other sites More sharing options...
badger906 Posted January 10, 2011 Share Posted January 10, 2011 check the slider to see if its nice and smooth. if its tight check the low speed needle isn't screwed in too tight, as it can catch the slider.as for dying quickly, that could be the plug on its way out.also there could be an airleak around the carb, as you said it was loose. and that would explain the high idle and eratic response. Quote Link to comment Share on other sites More sharing options...
chrisknights Posted January 10, 2011 Share Posted January 10, 2011 i no the hpi engine love os 8 glow plugs , have you checked the plug ?? Quote Link to comment Share on other sites More sharing options...
tomr Posted January 10, 2011 Share Posted January 10, 2011 Have you checked for air leaks Quote Link to comment Share on other sites More sharing options...
ravenguard Posted January 10, 2011 Author Share Posted January 10, 2011 i no the hpi engine love os 8 glow plugs , have you checked the plug ?? it has a os8 fitted Quote Link to comment Share on other sites More sharing options...
ravenguard Posted January 10, 2011 Author Share Posted January 10, 2011 Have you checked for air leaks ive just finished sealing it and change the carb bold ,seems to run alot better but keeps stalling and it wont go over half throttle or it just cuts out Quote Link to comment Share on other sites More sharing options...
badger906 Posted January 10, 2011 Share Posted January 10, 2011 have you set the carb back to factory? all needles flush Quote Link to comment Share on other sites More sharing options...
ravenguard Posted January 10, 2011 Author Share Posted January 10, 2011 yes all needles are set to flush Quote Link to comment Share on other sites More sharing options...
badger906 Posted January 10, 2011 Share Posted January 10, 2011 well full throttle dying could be to much fuel. lean off both needles 1/8th and try again. Quote Link to comment Share on other sites More sharing options...
daz c Posted January 10, 2011 Share Posted January 10, 2011 I had a simular problem with the one I bought off here. I found I had to ignore the factory settings and run it a lot more rich and it finaly worked it had me pulling my hair out lol. Mine is not flush it is sticking out a little. daz Quote Link to comment Share on other sites More sharing options...
ravenguard Posted January 10, 2011 Author Share Posted January 10, 2011 (edited) ok its flush now so ill try leaning it fine then ill try maken it rich .have to be tomorrow now could this be a knackered carb? any one got one Edited January 10, 2011 by ravenguard Quote Link to comment Share on other sites More sharing options...
ravenguard Posted January 11, 2011 Author Share Posted January 11, 2011 ok tryed leaning it still dies, tryed richen it guess what .................................still cuts out should have got an sts instead Quote Link to comment Share on other sites More sharing options...
KYOSHOKEV Posted January 11, 2011 Share Posted January 11, 2011 get it up on blocks with the wheels well of the ground and get it ticking over now the tricky part give it full revs make sure you hold in place so it doesn't shoot off while at full revs turn the hsn in and the revs should start picking up keep going till you feel its responding the way you want it to but just be careful you don't over rev it. Quote Link to comment Share on other sites More sharing options...
ravenguard Posted January 11, 2011 Author Share Posted January 11, 2011 get it up on blocks with the wheels well of the ground and get it ticking over now the tricky part give it full revs make sure you hold in place so it doesn't shoot off while at full revs turn the hsn in and the revs should start picking up keep going till you feel its responding the way you want it to but just be careful you don't over rev it. cheers kevill try that after i get a new carb pin found that the carb is loose again Quote Link to comment Share on other sites More sharing options...
ravenguard Posted January 12, 2011 Author Share Posted January 12, 2011 right just fitted the sts carb fits like a glove set it all flush (same as hpi's) tightens up correctly aswel.first start not enough idel so sorted that and too rich lean of a bit,but its running and it idels. so in the street it goes little more tunning and it seems to be running ok ,doesnt wheelie but that not a problem for me (even noing it has a new clutch shoes fitted) have to say i can see a diffrence in the touque/speed from an sts28 to a hpi 4.6 ,sts wins hands down Quote Link to comment Share on other sites More sharing options...
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