|
Enduro Intake/Carburetion - 2 stroke Jetting, Reeds, Air Filters, etc. |
|
Thread Tools | Display Modes |
#11
|
||||
|
||||
Quote:
Now, about having room to do it, I don't know how things are in NZ but in Arizona I can run a bike pinned wide open for miles, all over the state, so room is not an issue for me.
__________________
WildAzzRacing YouTube channel Trail Riders of Southern AZ club AZ State Parks OHV Ambassador '11 EC250R '98 KDX220 |
#12
|
||||
|
||||
I will read more later many thanks to you all. The spark plug looks almost perfect.
It is the org spark plug Denso W24ESR-U Now I have changed spark plug and put in an NGK B8EG. I am thinking that a BR7EG can make it better?
__________________
Cur GasGas GP 300-18, Prev GasGas EC 300 Racing-13, GasGas EC 300-10, GasGas EC 300-07 GasGas EC 300-05, GasGas EC 250-02,Suzuki RM250-98,Suzuki RM250-88, Honda CR250-86, Yamaha YZ400-79, Beta CR125-81, SWM 50-77, Italjet 50-76 www.dufvenberg.com /Larsa |
#13
|
||||
|
||||
Quote:
I'll keep that in the back of my mind as target audience can vary significantly i guess.
__________________
'07 EC300 GG '14 TXT250 GG '? 496 CPI Cheetah RZ/RGV hybrid '22 765 Street Triple RS '21 XTrainer '69 Stinger T125 Suzuki '23 TRS 250RR (it's a Trials thing) |
#14
|
||||
|
||||
Is it only the spooge you are concerned about,& otherwise running good?
Leave the plug heat range as is.It would be rare to need a different heat range & changing it may just be masking another issue. If there are no underlying issues your jetting should fine,if a little lean (in theory). Couple of easy checks for elimination- Check the choke is fully disengaging. Check Power valve is operating correctly & fully opening. Repack the muffler to remove the oil soaked packing. Put some fresh gas in with a lower flash point premix. Go ride the wheels off it.Life is good. |
#15
|
||||
|
||||
I'm not sure about the OEM Densos either. Always had spooge with them, but always been in a new bike while trying to get it dialled so probably just a case of correlation and not confirmation.
Regardless I have changed mine to an NGK so I'll report back when I get a chance to ride some more. I agree with F5 that most spooge is likely caused by low throttle application. I think it's part and package of the PWK carb. Without a squirt jet, we need to run rich enough that whacking the throttle doesn't hesitate. That means excess fuel.. that means spooge. Running richer also gives a smoother and torquier pull under load and helps keep the engine cool. IMO all the benefits outweigh having to wipe it's bum a bit. If you run up the rev range further you don't spend as much time in this rich area. You tend to be moving faster allowing the radiators to cool the engine, and you kind of prefer snappy 2 stroke power delivery. Part of the beast! I still think cutting the exhaust shorter eliminates most of the issues on these new GGs. The can looks like it was built for a 4T.. and without a doubt they run a lot hotter (cherry red headers running in darkness), without the addition of extra lubrication in their fuel. |
#16
|
||||
|
||||
Quote:
Quote:
Quote:
My current Gasser, the KDX, and YX250X are run on a 40:1 mix of pump premium and Lucas semi-synthetic which has a very low flashpoint (177f IIRC). My other Gasser was 40:1, pump premium, but I ran 927 which has a super high flashpoint of like 420f yet ran cleaner spooge wise. Bikes are ridden the same way on the same terrain yet they behave differently as far as spooge. Go figure. I personally think it has to do with many factors all coming together. Being jetted a little rich and lugging low speed all the time sure doesn't help. IMO, the design of the particular engine, the silencer design (as discussed in another thread on here recently), the general condition of the engine, and how the bike is ridden all play a part.
__________________
WildAzzRacing YouTube channel Trail Riders of Southern AZ club AZ State Parks OHV Ambassador '11 EC250R '98 KDX220 |
#17
|
||||
|
||||
Small bore roadracing I'd run 30:1 motul 800 with both pwk and mikuni. The tailpipe you could look down the length and it was light mocha like that plug above.
- Course the only time you got below 10,000 was in the pits.
__________________
'07 EC300 GG '14 TXT250 GG '? 496 CPI Cheetah RZ/RGV hybrid '22 765 Street Triple RS '21 XTrainer '69 Stinger T125 Suzuki '23 TRS 250RR (it's a Trials thing) |
#18
|
|||
|
|||
i would go back to the single base gasket and jet according to the jettingchart here (or by your feel) without looking at spooge.
then i'd look at what oil you're using, and look for an oil with lower flash point (wich is what i also need to do) my ec 200 has even more spooge, but runs superb! i also have been thinking about getting a hotter plug like br7eg but i'll try a different oil first with a repack of my muffler. it's no use to give you my carb setting since i have a 200 and yours is a 300. NECJ/NEDW is fairly lean, some run well, others detonate. if you get detonation, go for a richer needle. listen carefully at your engine, feel the character, listen to the exhaust sound changing with different jetting, feel the throttle response. |
#19
|
|||
|
|||
I don't like that statement to be honest. In the meantime I have jetted two 300's (a 2018 and a 2019-which is mine) using the NECW and they both run well. The NECW is pretty much in the mid range between lean and rich, the NECJ is on the leaner side. The NEDW is half a clip richer than the NECW and goes towards the richer side. And so does the NECH....
|
#20
|
|||
|
|||
Quote:
I tried from 40:1 to 100:1 and nothing changed. My jetting is spot on, the engine is new and runs really well. It is generally believed that oils with higher flash point produce much more spooge than oils with lower flash point. I admit I think that is correct. However, I run Motul 710 which has a very low flash point and still have tons of spooge Same with three different oils.... |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
How to know if the bike is running lean? | Munch | Enduro Engine - 2 stroke | 66 | 06-30-2021 03:08 PM |
Am I crazy? | rossi | General Discussions & Announcements | 11 | 01-27-2017 10:51 AM |
Crazy? | 12Bravo | Enduro Engine - 2 stroke | 4 | 10-12-2015 07:03 AM |
Am I crazy or????? | desertgasser300 | General Discussions & Announcements | 21 | 08-15-2013 08:29 AM |
This guy is a little Crazy | Rick | Pictures & Videos | 7 | 01-29-2013 11:14 PM |