Rough running

Phil Neal · Post by **Phil Neal** » 18 Nov 2003, 11:29

Morning all.

My crm is running rough at small throttle openings and when slowing down (closed throttle) it jerks around and won't maintain a steady speed at small throttle openings.

is it the mixture?

It is absolutly fine under power and idles reasonably well once warmed up, i've only really noticed it when i went back to standard gearing.

I have a new airfilter and plug to go in this weekend so hopefully that should sort it out?

Bargos · Post by **Bargos** » 19 Nov 2003, 09:13

Hi Phil,

They tend to run a bit unevenly at low revs anyway. I suggest that you do the usual filter clean and plug check. Might be worth checking the settings on the carb as well. What engine oil do you use?

Phil Neal · Post by **Phil Neal** » 19 Nov 2003, 11:56

don't start the oil thread again!

10w40 (halfords 2stroke) I think I may have put a bit too much in would that cause problems?

I'm getting a winter car so at least i can think about taking the carb apart and giving the whole bike a strip down clean without having to worry about getting to work the next day!

Bargos · Post by **Bargos** » 19 Nov 2003, 12:11

Phil,

Too much oil wont be a problem but too little would be!

Phil Neal · Post by **Phil Neal** » 19 Nov 2003, 12:19

i think there is a bout 750-800 in there?

how does the level hole work (i undid the screw waiting for it to run out, got to 750cc before I realised!)

temple_of_boom · Post by **temple_of_boom** » 19 Nov 2003, 13:41

The bike needs to be held upright (off the sidestand)

Phil Neal · Post by **Phil Neal** » 19 Nov 2003, 14:02

it was on the level and i held it upright and still nothing.

must have a deep sump version!

phil1 · Post by **phil1** » 19 Nov 2003, 20:05

yea i think i have one of those, mine always seems to take more than it says. i just keep going till it dribbles out of the hole!!!

Russell · Post by **Russell** » 20 Nov 2003, 09:53

For some reason it takes a LONG time for the oil that you put in the filler hole to reach the level hole.
When changing the oil on my MK3 I put the bike on a paddock stansd, this is like a milking stool, this supports the bike and keeps it level, the stand has a large hole in the centre and I position the bike with the level hole over that and a bowl underneath, I then put approx 700 ml of oil into gearbox and leave overnight.
This method ensures the correct level of oil is in the gearbox every time.

Regards

Russell.