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Post by rustedwrench on Mar 17, 2013 19:37:01 GMT -5
Well here we go...
Im new here and just got a 150 gy6. 2005 model with 440miles. Been sitting in the back of a garage for a bit.
I cleaned the carb
Rejetted it for a uni filter
AC cdi box
Hi per coil
Iridium plug
Added 13g rollers
1500 bell spring and clutch springs.
I have done nothing about a header yet but i did cut the stock muffler down to 12" and used a gutter screen in it with steel wool packing. Now........here we go
Before i put in the 1500 springs it pulled hard but topped out at 6000ish rpms. Ran good. and strong. I changed to the new springs and noticed........My exhaust . After a 5 min ride . Was almost on fire...WOW....i got back and it was cherry red. Hot enough to smoke the rubber around the mount.
Im thinking i need to go back to the factory springs before i burn something up
A little more info. I live in Tennessee and deal with a lot of hills.
I have not started riding to work yet but i will be traveling 49 miles each way. No highway. Nothing more than 55mph. All hills tight turns and only a few wide open runs...
Aside of the almost fire. I love this thing. It is pulling me and my son up the back hills. We are combined 320 lbs. But again i think im going back to the stock sprigs and saving up for the better clutches.....oh yeah and poss. Changong my exhaust. Hehehehehe
I dont have a video of the redness but i do have a video im trying to get loaded up. As soon as i get it on youtube i will update my post.
Advice or thoughts are welcomed.
Thanks
Rustedwrench
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Post by tvnacman on Mar 17, 2013 19:48:58 GMT -5
is the black engine shroud on the engine , has it melted ? is the fan on the flywheel in place ?
John
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Post by terrilee on Mar 17, 2013 19:49:10 GMT -5
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Post by rustedwrench on Mar 17, 2013 20:19:08 GMT -5
Hey guys. Thanks for fast reply.
Black plastic all good. No melting that i saw but could stand a better looksy.
Quick recap.
All changes as mentioned but no 1500 yellow springs. Pulled my son and I up my big hill with no prob and we are about 320lbs.
Now put in 1500 yellow springs and zooooom. 7500rpms but it takes a bit to get there and not as fast not as much power taking off. Oh and yeah gotta include the burning hot insides....oh how i love the humper sound and the more umph...i think i might just go back to the stock springs.
I am having surgery tomorrow so it will be at least a week before i ride so i will just tinker and inspect it. Oh and the carb is now 30 main jet and it is a 24mm carb. I say 24mm but man getting on the uni was a pain....almost like it was bigger than 24mm.
Oh well. Will hit it again soon. But for now thank you for the feedback i will be looking into it more and still.....comments welcomed.
Im going to check that youtube vid and see if it is done. Im doind this all from my phone so sorry for slow vid upload and bad spelling
Thanks again
Rustedwrench
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Post by teddy554 on Mar 17, 2013 20:25:27 GMT -5
i would say the spring has nothing to do with the exhaust getting hot like that, what jet are you running in it and the metal you put inside the muffler after your custom work probably has a lower temp thresh hold which gets hot easier and cause your muffler to get hot just a guess there
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Post by rustedwrench on Mar 17, 2013 20:31:46 GMT -5
See if that works
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Post by triker on Mar 17, 2013 20:32:18 GMT -5
You should replace the steel wool with glass muffler packing material. And check your spark plug, I bet your running it really lean.
Roy
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Post by teddy554 on Mar 17, 2013 20:40:54 GMT -5
yeah steal woll will catch fire by the way
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Post by teddy554 on Mar 17, 2013 20:41:49 GMT -5
sounds good but... DX
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Post by rustedwrench on Mar 17, 2013 20:46:25 GMT -5
Yeah i know about the steel wool and fire. We used to take our Rockford Fosgate amps and light the wool on fire with the speaker outputs. But dang......did not think it would get that hot....it didnt until i got it to rev up into 7000rpms.
So yes i will be changing that out.
Also i have a 25, 30 and 35 main jet with a 30 currently installed. I have not checked the plug but guessing a 35 might be in order.
Anyone checked out the vid on youtube yet....im using my phone and having problems viewing it....not sure if it is because im using a phone ir not.
Thanks
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Post by teddy554 on Mar 17, 2013 20:56:26 GMT -5
yes it sound good i seen the video but im not sure if you are right on the jet size it should be a number in the 110 plus
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Post by rustedwrench on Mar 17, 2013 21:07:45 GMT -5
Ahhhhhhhhh crap. Im sorry. I ordered a 125, 130 and 135. I installed a 130.
As soon as im home from recovery and rehab i will pull. Look. And poss change. Might need to go a bit higher as well.
How dern tight do these Uni filters fit. Mine fit so tight----how tight was it-------so tight it just poped right off. So tight i made an extension to pull it away some and out of the way.....whew. Never was able to actually get it to clamp and stay. Tooooo tight. But i am now pulling in colder air so...cool. But does this mean i might have a bigger than 24mm carb?
I dont see any print on it and i did not measure before i put it back together.
Oh well.
Thanks for the input.
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Post by scootercapecod on Mar 17, 2013 21:15:05 GMT -5
Maybe I can offer some scientific as well as personal input which may guide you better. First and foremost that was left unmentioned is that a free flow or open exhaust DOES tend to run hotter simply because of the amount of extra flow from the valve and not much to disperse the heat like a muffler would. You also cut it down some so you removed material which would help it stay cooler. IMHO you might want to look into adding a burn guard. As for the spring.....you should match it up with yellow clutch springs as well that might help as it'll engage the clutch faster and stronger giving you more grunt. If you are worried about too high of RPMs go with 14g rollers instead of 13 OR you can do a 13 14 combo being sure to use 1 13 and 1 14 in each trimester of the variator. What that does (aside from buying yet another set of 13.5s) is split the difference or you may decide to go with all 14s. That depends on how much takeoff power you want to sacrifice or not but being as we're talking about a total of 6g that can make a huge difference so think about it. I hope that helps you somewhat.
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Post by rustedwrench on Mar 17, 2013 21:26:27 GMT -5
Coolio.
Thanks. I am running both yellow springs in the clutches and in the main bell. So with this im not to worried about rpms being high. Im in the 7500ish range but gets there slower than the stock springs. I need to check the weight of the stock springs to know where i came from.
Also the exhaust will soon have a heat shield and muffler packing.....not steel wool. Weeeeha.
I will be checking my plug soon as well. Might need to hit that 135.
I might even look into directing some of the outside air to the muffler for extra cooling and the combining of rollers....good idea. Fine tune it.
Time will tell.
But thanks again to all.
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Post by teddy554 on Mar 17, 2013 21:29:42 GMT -5
the outside lip of the carb has nothing to do with the measurement of the carb so a 24mm carb doesnt make the lip 24mm or whatever measurement it is the measurement refers to the size of the venturi and most carbs are 35-38 mm outside lip i believe not 100 percent sure on the 150's
yellow or stiffer clutch springs give later clutch engagement not faster, so it builds higher rpms before the clutch will engage which helps for better take off
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