Jump to content
Sign in to follow this  

Hot Start troubles

Recommended Posts

My Son has a CRF150R and it is a bit hard to start when it is warmed up.

 

Is this normal or do I need to do some adjustment to the Carb?

 

Thank you

Share this post


Link to post
Share on other sites

It's been way hotter than normal for this time of year here. How about in Texas? It could require one or two sizes leaner on the main, and half a turn or more leaner on the pilot. If not, it could make the hot-start valve ineffective.

Share this post


Link to post
Share on other sites

Inspect the hot start lever, cable, spring and slide to ensure it is working. I'm at 400' above sea level and run a 138 main and 42 pilot and temp has been in the 90's and mine starts on 1 or 2 kicks in gear when hot using the hot start. The R&D flexible fuel screw is a life saver, no more burned fingers, I would suggest it if you don't have one.  

Share this post


Link to post
Share on other sites

I bought the bike off the showroom floor in El Paso 2 summer ago and moved to NC where we are about 100-1400 feet above sea level.                                                                                    

 It was a bit moody in TX when it got warmed up but; here it seems to be more "moody" that usual here in Fayetteville NC.

Share this post


Link to post
Share on other sites

Between the two states there should not have been a major change. I suspect valves and poor jetting. Have you or the dealer changed jetting? Was the bike new when you bought it?

Share this post


Link to post
Share on other sites

I bought the bike off the showroom floor in El Paso 2 summer ago and moved to NC where we are about 100-1400 feet above sea level.

It was a bit moody in TX when it got warmed up but; here it seems to be more "moody" that usual here in Fayetteville NC.

I'm local in Fayetteville if you need a hand diagnosing

Share this post


Link to post
Share on other sites

I am going to check the valves tonight, base line all of the adjustmens on the Carbg, and see where it goes from there.  I am going to the track on Saturday so the kids can ride.  I will tinker with it there if and see if I can dial it in a bit for elevation and humidity here.  Also going to adjust the suspension a bit.

Share this post


Link to post
Share on other sites

I am heading to Outback.  Going to leave early Sat morning to try and avoid the madness and let the kids ride before it gets too hot.  Both boys are on Hondas crf80 and crf150r

Share this post


Link to post
Share on other sites

I am heading to Outback. Going to leave early Sat morning to try and avoid the madness and let the kids ride before it gets too hot. Both boys are on Hondas crf80 and crf150r

I'll be there with my wife and son. She'll be on the 150RB with #51 plate, boy will be on CRF50. I just traded mine for a motard RB, not sure if I'm going to bring it out... Thought about running it on the oval tho.

-Matt

Share this post


Link to post
Share on other sites

Matt,  Ill be there in a White F350 with a cap on the back CRF150 has #61 on it.  Fresh gas and some basic cleaning seem to have been the culprit so far; lets see what it does after it gets hot tomorrow.

 

Doug

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×