Hello guys.
My setup is:
Copy of DR kit.
proma pipe.
upgraded reed.
TJT vario.
Stock carb with 88 jet.
I am having a four stroking at 1/4 or 1/3 of throttle. It runs great at
full throttle with no problems. Should i go down 1 jet size?
I am a total noob on this, so help is much appreciated!
Regards Morten from Norway
Probably not. You tune for Wot first, so if you are good at full throttle, you have other issues. If it was a PHBG carb I could offer solutions, but those hobbit carbs are totally different.
Oki thanks anyway. Then i have to figure it out by trying my self.
I will try a 90 jet first and see how it react. See if i change the four stroking
area. I will try to go back to stock reeds and see if that helps.
You need a bigger jet than an 88 for a 46mm kit. A stock shocko or something and you would likely be fine. The stock carb has no needle and this your only avenue for tuning is the main jet and the idle/air screw. This is usually more than sufficient to dial the bike in well.
There is that weird cap/plug thing on those carbs that can leak air. Try upjetting first.
How is the moped scene in Norway? Haven't heard much from there over the years.
I'm an old Dane in Minneapolis, but have made a few connections with mopeders in DK. Are there very many in Norway these days?
Thank you guys for the info. I will upjet to 90 and see how it feels.
What do stock shocko mean? I am a noob you know! :)
Well here in Norway there are not many Caminos on the roads any more.
Its almost only scooters here now. I can understand why caminos are not that popular any more due to issue to get parts and stuff. Here in Norway they stopped selling 50 cc now they are all 45 cc that goes 45 km/t top speed. Its a joke if you ask me. Its dangerous to go that slow.
Ah sorry, that is a 60cc cylinder that gives a very modest bump in power, hence the need for less fuel. I would go to a 92, but even the 90 will show an improvement or not so that you can move in the right direction.
Ahh i understand.
I have an 90 jet and a 95 jet. If you think that 88 is to low
i can drill it to be approx 92 jet so i have something to play with.
When i am dialing in the jet. What am i looking for? I have read about
checking the spark plug for brownish color. But can you also feel it in the performance? I mean will i get more torque with bigger jet? Or will there only be minor changes and not noticeable?
I have been running my camino with approx 84 or 85 jet, and the bike was running pretty nice performance vice! I know that this setup is way to lean and
probably killing the cylinder kit.
Any way, the weather is not allowing me to continue with this jetting, hoping for better weather soon :)
Heres my camino:
I am going to change the rims. But they are now getting painted :)
You can feel some changes. You will be able to feel a stronger or weaker pull, better or worse response and the sound the carb makes can also help. Once you get to a point that feels good though then you still need to look at the plug and monitor temperatures to tune finer than what your backside tells you, you can can still be dangerously lean. Try the 95 jet. I have run 92 and 95 with minor difference. If you are too rich, you can try to drill your other or just put the 90 in for a back to back comparison. Many riders run temp gauges to use as a tuning tool as well. Hondas run hotter than others and temps in the 400-450 range are the acceptable max.
Oki thank you for all the info. I been google Cylinder temp guage and found this one, and have few questions.
Where on the cylinder do you guys connect this? Do it need 12 volt to work?
Or is that just for light?
12v is only for the light i think.
Youll need one of these to connect to the spark plug...
http://vwparts.aircooled.net/VDO-Cylinder-Head-Temperature-CHT-14mm-Sender-p/v323701.htm
I would go for a more compact digital option. You will be placing the probe on the spark plug and then installing the plug with the probe beneath it.
I would suggest this or similar. I am unsure what availability you will have overseas. https://www.treatland.tv/trail-tech-digital-temperature-gauge-in-BLACK-p/trail-tech-722-et3.htm
They also sell the TTV now which includes a powered backlight.
Wow that was a cheap one. Thanks. I have ordered it together with some more jets :)
I have looked for some here in Norway, but there was none i could use. The only thing that was cheap was this one:
But its for exhaust and the scale is going all the way to 1200 degrade celsius.
Anyway thanks for the help both of you.
Want to post in this forum? We'd love to have you join the discussion, but first: