engine problems....?
#1
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From: armstrong,
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i took my hyper 7 to the track to race again today and it isnt running right. im still runnin the mach 28. but when if rist start racing fro the first 5-8 minutes it is tuned perfect, then after about 9 minutes it runs really high. it idles really high also. when i let go of the throttle it is idling high, and coming around turns i cant break at all, and it keeps goin. any ideas? i mean it is tuned realyl good when i first start racing but after a while i have to tune it all over again and it does the same thing. its not runnin to hot. around 233-240 degrees. anyone have any ideas?
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From: dungannonnorthern ireland, UNITED KINGDOM
ORIGINAL: Townsley
i took my hyper 7 to the track to race again today and it isnt running right. im still runnin the mach 28. but when if rist start racing fro the first 5-8 minutes it is tuned perfect, then after about 9 minutes it runs really high. it idles really high also. when i let go of the throttle it is idling high, and coming around turns i cant break at all, and it keeps goin. any ideas? i mean it is tuned realyl good when i first start racing but after a while i have to tune it all over again and it does the same thing. its not runnin to hot. around 233-240 degrees. anyone have any ideas?
i took my hyper 7 to the track to race again today and it isnt running right. im still runnin the mach 28. but when if rist start racing fro the first 5-8 minutes it is tuned perfect, then after about 9 minutes it runs really high. it idles really high also. when i let go of the throttle it is idling high, and coming around turns i cant break at all, and it keeps goin. any ideas? i mean it is tuned realyl good when i first start racing but after a while i have to tune it all over again and it does the same thing. its not runnin to hot. around 233-240 degrees. anyone have any ideas?
S**t engine lol i should no i got one for the first few months mine was fine recently i have been so anoyed with it it never holds a tune when you tune it it will run for about 10 mins max as you said then will start over reving and beeping making a werid noise as if there is an airleak or its to lean but if you put it anyrich it just bogs out. i though it was down to my needle backing out but i have changed orings and they are not moving so i duno.
all i can suggest is what i am going to do put it back to factory start again driving up and down the road.
#3
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From: armstrong,
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lol.....yea, i plan to get a new engine this summer sometime, but i dont know wich kind? how is the werks 26? you run a mach 28 to? it does the same thing mine does? it feels liek it gets realyl hot, but when i go to temp it, it is only 233. if i tune it, then it will have to be returned when i start it up for the next race if i leave it sit for a while. ? i dont get it
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From: dungannonnorthern ireland, UNITED KINGDOM
yeah its a strange engine alright. it came in my hyper 8 rtr i dont plan on changing it until it kicks the bucket though as i just use it for bashing about.
as for you changing enigne when you race would you not rathe rrace in sportsman class or wateva with .21 rather than outlaw with .26 or .28 or what way does your track work?
i no you cant race any enigne over .21 unless in outlaw.
as for you changing enigne when you race would you not rathe rrace in sportsman class or wateva with .21 rather than outlaw with .26 or .28 or what way does your track work?
i no you cant race any enigne over .21 unless in outlaw.
#7
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From: Perth, AUSTRALIA
after about 9 minutes it runs really high. it idles really high also. when i let go of the throttle it is idling high
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From: leicester, UNITED KINGDOM
ORIGINAL: Townsley
what would be a god recommended engine to drop into my hyper 7?
what would be a god recommended engine to drop into my hyper 7?
Is you track long or short?
If you've got the money go for an RB motor
for budget engines look at SH .21 (sportwerks, nosram, LRP etc), Go .21, or STS .21
#9
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From: armstrong,
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its a pretty long track. the mach 28 just doesnt have enough quicknss to it. should i get a 21 or 26? alot of people run 26's and a fewe run 21's
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From: armstrong,
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hmmmmmmmmmm i pulled the engine off and there is a liek a rip in the gasket.........about half way around. [:@] my pull starter is broke to. lol could the hole be the "hole" problem? lol. anyway, just wonderin if that has anyhting to do with it
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From: armstrong,
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ok i got a question........sorry for all the questions...but.....is there suppose to be 2 cracks inside the part wheer the gasket goes on? the part where the manifold goes over? i looked inside and there is a crack on botch sides...iw illt ry to get a pic. but im jsut wonderin if that is suppose to be there
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From: Perth, AUSTRALIA
Where's the hole again? If the engine does have an air leak this will most likely be why the engine has been running lean. But as you say, it may not be the "hole" problem..
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From: armstrong,
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the whole is on the gasket. the rubber thing. theres a slit in it about half way around. and i noticed on the inside part where the gasket goes onto, there is a crack on both sides...i dunno if those are wehre it is sealed or if they are cracks that arnt suppose to be there
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From: armstrong,
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there is a split in the gasket......

and this is what im talking about..it has like a crack running along both sides...its hard to see sorry.

and this is what im talking about..it has like a crack running along both sides...its hard to see sorry.
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From: Sweetwater,
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i don't think those rips will effect the engine any, but i'm not sure what you're talkin' about cracks..i can't really see the pics that well either.
#20
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From: armstrong,
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inside the the thing where the gasket goes....it looks liek there is a crack runnin along the inside of it. ? i dunno. it almsot looks liek a seal but i cant tell. there is one on both sides. =\ sorry bout the picture.
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From: armstrong,
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wats with it runnin weird though? i still dotn know why it does that. after around 10 minutes, it idles realyl high and revs really high. catn figure it out
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From: Perth, AUSTRALIA
wats with it runnin weird though? i still dotn know why it does that. after around 10 minutes, it idles realyl high and revs really high. catn figure it out


