SE50 build

Wheelman-111 · Post by **Wheelman-111** » Fri Apr 11, 2014 9:21 am

Greetings:

The engine won't gin up RPM if the pipe is strangling it, regardless of roller weight. It might have good low-end, but a stock pipe won't support higher engine speeds particularly if gutted and kinked. Maybe someone has a nice V8 for sale?

swimmingfree · Post by **swimmingfree** » Fri Apr 11, 2014 9:35 am

thanks Wheelman-111 wood like to get a pipe but its a se50 motor and you dont see them use up for sale on here.... if i got a v8 pipe i wood need to cut and weld it back together to get it to fit the se50...
with the falling flat on its face at 7200 rpm jetting 102 42 dose inn body have a good guess with way i shood move the clip on the pin????
swimmingfree

swimmingfree · Post by **swimmingfree** » Fri Apr 11, 2014 10:47 am

ps
for got say that the temp gage is running about 230... im think of droping the pin by 1 to run a little leaner...
swimmingfree

Wheelman-111 · Post by **Wheelman-111** » Fri Apr 11, 2014 10:59 am

Greetings:

Right! Sorry I forgot it was an 05 block. LeoVince from Eft?

The pilot along with the main should be considered rich. Warmer and better running with the needle lowered will confirm. 230 is much too cool. What fuel/oil?

swimmingfree · Post by **swimmingfree** » Fri Apr 11, 2014 11:38 am

32/1 on the gas oil mix that 2 oz of oil to a hafe gallon of gas... so my mix is right ... boy the oko carb is a pain it reset the pin.. do you think i shood drop it my one or two ...
swimmingfree

swimmingfree · Post by **swimmingfree** » Fri Apr 11, 2014 2:54 pm

well i drop the pin my 2 so its at the top of the pin...when for a ride the temp came up to 295 and the rpm when came up as well to 7800...it did sounded better to my ear as well not so munch like a vacuum cleaner sucking .. so it looks ill be getting some main jets....
swimmingfree

paulpauly7 · Post by **paulpauly7** » Fri Apr 11, 2014 3:01 pm

once again its your exhaust holding you back.Why must you modifiy the stock exhaust? gutting it is a bad idea you have now killed all the back pressure .Get a new pipe stock or aftermarket.the aftermarket would be the best for what you want your motor to do.

swimmingfree · Post by **swimmingfree** » Fri Apr 11, 2014 3:05 pm

paulpauly7 go out side and take a tape with you and see what size the tip of our scooter is???? ill bet it is bigger then a 1/2 inch id if its not stock...
swimmingfree

paulpauly7 · Post by **paulpauly7** » Fri Apr 11, 2014 5:42 pm

you just dont understand do you.I give up keep working with your gutted stock pipe Good luck .

swimmingfree · Post by **swimmingfree** » Fri Apr 11, 2014 5:55 pm

what is the Scorpion pipe tip size and let no what it is ... i bleve it is 5/8 so your back presser is less then mine...
swimmingfree

paulpauly7 · Post by **paulpauly7** » Fri Apr 11, 2014 6:21 pm

Yes the tip is larger but it also has a massive chamber that produces massive back pressure .your stock pipe HAD a ti y section allowing back pressure but you cut all this out then added a bigger exit point so now even less back pressure .You might as well run a strait pipe.You wanted help and wonted to know why you cant get over 7500rpm Well you have been told but you wont listen .The first aftermarket part you bought should have been a pipe But noooo you wanted bigger cc thinking that alone would make you faster .You cant go put big race cams in a motor without modifing other components to get full potential from the cams .I think you need to sit down and have a read of the jennings 2 stroke book maybe you will listen to the experts.

swimmingfree · Post by **swimmingfree** » Fri Apr 11, 2014 7:53 pm

the pipe was crush at that end of the pipe.... i no 2 strock need back pressure.. the head pipe is larger then the tip ... the massive chamber mak a pressure waves in the pipe so it pulls fresh gas through the jug and the pressure wave push it back in the jug ... wright???
swimmingfree

Wheelman-111 · Post by **Wheelman-111** » Fri Apr 11, 2014 8:10 pm

Greetings:

It is NOT about back "pressure". It is about matching shapes and dimensions to the engine's displacement and optimum RPM. The pressure WAVE returns at precisely the right moment to stuff a puff of escaping fresh mixture back into the combustion chamber just before the port closes. Only then she sings her best.

curtis966 · Post by **curtis966** » Sat Apr 12, 2014 11:09 am

Last set of jets I bought came out of Taiwan they showed up about 2 weeks later but they showed up lol. For the pipe the sp3 would be a great choice. Maybe talk to graphite9 I'm pretty sure he can get one for you maybe even redetf. Not sure on a price though. I've sold all my stock pipes but I'll keep an eye open for ya.

swimmingfree · Post by **swimmingfree** » Sat Apr 12, 2014 11:25 am

curtis966 thank but i think ill save my penny's till i have anuff to get a LEOVINCE SP3 PERFORMANCE EXHAUST... will get ahold of graphite9 to see if he can help me out... boy not good that it took 2 weeks to get the jets ..
swimmingfree

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