What's missing here?
-
I appear to have something missing out of the right hand side of my carb. I imagine its some kind of adjustment screw
Whatever it is, would it make it hold back over 9k? That is the issue I have at the moment. Its a 93, and I've checked and adjusted the power valve, tried it in both 180 Degree positions and re jetted the main jet twice already, and still seem to have the problem, so now am looking at what should be filling this threaded hole next.
@Pablo13 I would be very surprised if the carb was restricting RPM's, I would look elsewhere for more obvious restrictions if I were you. Such as CDI, exhaust, Post some pics and tell us the specs of your bike, Ie. Which mods it has etc and I'm sure someone on here will have some answers for ya!!!
-
It does rev higher than 9k, just very slowly, lol. It's a 93 French import, and I didn't think that year bike has any CDI restriction?
The bike came with an aftermarket exhaust made by Rino Racing, And I've tried a 220 main jet, now on a 240. Might be placebo effect, but might get to 9.5 a touch quicker that it did. Any help would be appreciated
-
It does rev higher than 9k, just very slowly, lol. It's a 93 French import, and I didn't think that year bike has any CDI restriction?
The bike came with an aftermarket exhaust made by Rino Racing, And I've tried a 220 main jet, now on a 240. Might be placebo effect, but might get to 9.5 a touch quicker that it did. Any help would be appreciated
-
It goes through the cleaning cycle ok when I turn the ignition on, but does sound lethargic doing it. so that would be a new servo/motor thats needed? To be fair I've not tested the battery either, so not sure what kind of condition thats in. That could affect it too couldn't it?
-
It goes through the cleaning cycle ok when I turn the ignition on, but does sound lethargic doing it. so that would be a new servo/motor thats needed? To be fair I've not tested the battery either, so not sure what kind of condition thats in. That could affect it too couldn't it?
-
@Pablo13 Yeah but on some CDI's it will retard the valve at certain RPM.
That engine should rev out hard all the way to the red line.
The best way to eliminate it not being the powervalve is to align the valve up through the exhaust port, then disconnect the servo. And take it for a test ride. Bottom end should be lost, but past 6K it should pull hard to 12k
-
So, check the green black wire is grounded and stick a finger in my exhaust is the next port of call?
Cheers for the help btw guys
-
So, check the green black wire is grounded and stick a finger in my exhaust is the next port of call?
Cheers for the help btw guys
-
Its not the valve. I took the exhaust off and aligned the valve, unplugged the servo and it was still the same at the top. What should I look at next?
-
Yeah still going flat in the higher rpms. Maybe the coil is weak. No plug chops yet, but I stuck a new one in a few weeks back ngk 8 i believe. Also along with a new air filter as it just ticked over 24km.....about 15k miles. Snorkel is in. Problem has been there before the service too. Would be nice to get to the bottom of it
-
Yeah still going flat in the higher rpms. Maybe the coil is weak. No plug chops yet, but I stuck a new one in a few weeks back ngk 8 i believe. Also along with a new air filter as it just ticked over 24km.....about 15k miles. Snorkel is in. Problem has been there before the service too. Would be nice to get to the bottom of it
-
Just an aftermarket exhaust and a 240 main jet I stuck in, that's it. So compression test next?
@Pablo13 What exhaust you running?
Most manufactures stipulate sticking with 210 main jet, despite the uprated exhaust.
I don't know the figures that constitute acceptable levels for the compression test.
I would look at the electrics first.
If the engine sounds sweet, then chances are it is.
