Posts
13147
Joined
8/16/2006
Location
Sacramento, CA
US
Edited Date/Time
1/27/2012 6:39pm
I think Camp is, but here's question. What's the trick to curing the hanging high idle?
Have the 45 pilot in, new not clogged, fuel screw 2-2.5 out, and the hot start lever is free and not sticking. I know it has to run a high idle, but this is issue that seems to be pretty common with these running fast idle before idling down to the set idle.
The bike is very low hours, so I doubt there's valve issue.
I've run through Thumpertalk and CRFs only, and that seemed to raise more questions than provide answers.
Anyway, hoping someone may have a straight answer.
Thanks.
Have the 45 pilot in, new not clogged, fuel screw 2-2.5 out, and the hot start lever is free and not sticking. I know it has to run a high idle, but this is issue that seems to be pretty common with these running fast idle before idling down to the set idle.
The bike is very low hours, so I doubt there's valve issue.
I've run through Thumpertalk and CRFs only, and that seemed to raise more questions than provide answers.
Anyway, hoping someone may have a straight answer.
Thanks.
Also it's possible the carb isn't seated properly in the intake manifold, or the clamp isn't tight enough?
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It's a just deal with it issue. I don't think it's carb size... I bore them in my mod motors and it really likes a bigger carb.
One thing I Haven't tried is a smaller pilot air jet. That may actually be the ticket.
I got one here a kid races.I think it was a 52 or 54 I put in and woulda put in a bigger one if I had it.Cured the hang right away.
The fuel screw doesn't affect this condition,dont even bother burnin' your fingers tryin' to mess with it.
I think it had a #60 leak jet,the thing bogged like a yamie with a 7 on it.Not wanting to wear out the clamp screws taking off the gas mixer I took another big leak jet,crimped it off closed with pliers being carful not to mess the threads and put it back in.It worked so well I left it.The weather was chilly so when it gets warm it may be to much fuel or really to long of a squirt.It stays on the pump cam a long time to sqirt all that fuel with the leak jet full closed.
You used to be able to make a stop but honda changed the shape of that piece and you cant do that no more.
Just an FYI.
I wonder if the volume of air that passing at idle that isn't enough to create a vacuum efficient enough to pull it through the smaller pilots. Shoot, my 525 runs a 40 or 42 pilot.
Even with an LV can with the "quiet insert" it was the loudest bike there, including some 450's. Have a Q4 to try, but this thing is ridiculously loud.
Glad to hear the 48 pilot worked well. I'm going to get some bigger pilots and see if that helps our idle issues in colder weather.
Man yall are like experts on the 150R. Can you help with my issue? My wifes just wont start without some serious kicking, and even then maybe pulling it behind the truck would just be easier! Once its started it hates to warm up, but when it does it runs fine and it starts easy. Ive looked all around but couldnt find any good help. It has little ride time on it at all so I dont think the valves would be the issue...or would they? Its pretty much done it since we broke it in. The bike is an 07. What can you guys tell me? My 250f before, nor the 450 I have now ever gave me any problems like this so Im a bit stuck.
If it dont try 5 more twists,all this is with the choke on.If it still dont hit try 5 more.If it still doesn't fire you need to remove the plug and see if it is wet or dry.
If it is dry the bike is just not getting primed for start.With the big leak jets they put in it may take 10 twists to get the thing primed.
If the plug is wet then next time dont prime it,kick a few times and take out plug.If the thing is wet without priming or choke then it is flooding from another source like float height or dirt holding the float needle open.
I'm pretty sure though that if you are not priming it before you are kicking it this will cure the problem.
It is easy to remove the tank and valve cover to check the intake valve clearance.If the bike has low time I doubt the valves are out,lots of time and they may be.
Pit Row
BTW, it was warmer today, about 65f, and the idle was perfect with the 45 pilot. Last week when it was 45f, the idle was erratic.
Post a reply to: Any 150r owners?