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44 bhp :o
Posted: Sat Apr 20, 2013 7:48 am
by alanh
Had my bike on the bemsee dyno,
![cough cough](./images/smilies/cough.gif)
ed out 44bhp running rich as hell all the way through. Switched carbs to a set with corrector jets blocked off, took filter out and runs a lot better so got some dyno time booked on Thursday, will update. Motor is stock apart from base gasket and flywheel/generator removed. Bike is running in sub 64 class so need another 20hp, if all else fails I've just acquired an ex race motor with adjustable inlet , ported head etc. But was trying to save that for running full power next season
Re: 44 bhp :o
Posted: Sat Apr 20, 2013 10:08 am
by mick41zxr
Do a leak down test & check your valve clearances. In stock config you should hit 61/62 hp sae corrected.
You must be stretching the throttle cables trying to keep up with that
![shocking shocking](./images/smilies/icon_e_surprised.gif)
Re: 44 bhp :o
Posted: Sat Apr 20, 2013 10:24 am
by alanh
mick41zxr wrote:Do a leak down test & check your valve clearances. In stock config you should hit 61/62 hp sae corrected.
You must be stretching the throttle cables trying to keep up with that
![shocking shocking](./images/smilies/icon_e_surprised.gif)
cable, q.a.t with no return
![Wink ;)](./images/smilies/icon_wink.gif)
but yeah kicking the spuds off it and still a sitting duck on the straights
Re: 44 bhp :o
Posted: Sat Apr 20, 2013 10:59 am
by monstermotogp
44 bhp? are you sure its not restricted thats a huge loss?
john
Re: 44 bhp :o
Posted: Sat Apr 20, 2013 12:55 pm
by alanh
Nope revs to 14500ish and no washers in Inlets. Will see how it goes with fresh carbs as the fuelling was really bad, failing that I'll have to check clearances etc.
Re: 44 bhp :o
Posted: Sat Apr 20, 2013 9:32 pm
by monstermotogp
Let us know how it goes! But likei said 44bhp sounds drastic.
john
Re: 44 bhp :o
Posted: Mon Apr 22, 2013 9:30 pm
by banner001
my road bike was 54bhp with terrible fuelling, standard air filter/downpipes/restricted exhaust and a chain that was almost smacking off the rear sprocket...something must be very off with yours
that reminds me, i need to dyno mine now with the 105 mains...
Re: 44 bhp :o
Posted: Thu May 16, 2013 3:21 am
by alanh
Throttle linkage was catching, sorted that and 55bhp. Exhaust had more holes in than a teabag so just fitted a micron system, I'll get it jetted and on rr in next few weeks and see how much better it is.
Re: 44 bhp :o
Posted: Sun Jun 09, 2013 9:06 pm
by monstermotogp
Glad to here you are back on track alan.