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HArd time cold starting
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HArd time cold starting - September 4, 2011, 12:04 PM

Hello

My bike lately has had a hard time cold starting as shown in this video


It runs just fine after it does start up though, and I always start with the choke fully on (not sure why I didn't have it fully on in the video but the same problem occurs in any case)

I haven't checked the carbs yet but I want more opinions before I take them out as I have never cleaned carbs before and don't want to screw something up

-Ray
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September 4, 2011, 12:35 PM

How often do you ride the bike? my first suggestion to you would be to check the condition/ charge of your battery....and how about the condition of the gas?

Sure a partially clogged pilot jet could cause a hard start but you would also be dealing with idle issues to 1/4 throttle....also these would not be affected by temperature, meaning it would not matter weather the bike was warm or cold.

Throw a charge on that battery and try again. I always hook the battery tender up when I am not going to be riding for more than a week.

Last edited by vtwinjunkie; September 4, 2011 at 12:38 PM..
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September 4, 2011, 01:01 PM

Quote:
Originally Posted by vtwinjunkie View Post
How often do you ride the bike? my first suggestion to you would be to check the condition/ charge of your battery....and how about the condition of the gas?

Sure a partially clogged pilot jet could cause a hard start but you would also be dealing with idle issues to 1/4 throttle....also these would not be affected by temperature, meaning it would not matter weather the bike was warm or cold.

Throw a charge on that battery and try again. I always hook the battery tender up when I am not going to be riding for more than a week.
I try to ride it every day when I can..and I put a fresh battery in and the problem was still there. I have had the bike for 1k miles and the 7-11 premium gas i've been using has worked so far up until 100 miles ago when this started
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September 4, 2011, 02:35 PM

I've had 3 of these bikes & just fixed the same problem on mine. Does it also have trouble idling until you've ridden for a while & bike is very warm?

1. tight exhaust valve
2. need to re-adjust your float height.
3. intake boots cracked

I can help you out next weekend if you like


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September 4, 2011, 08:20 PM

Quote:
Originally Posted by BlkOnBlk600r View Post
I've had 3 of these bikes & just fixed the same problem on mine. Does it also have trouble idling until you've ridden for a while & bike is very warm?

1. tight exhaust valve
2. need to re-adjust your float height.
3. intake boots cracked

I can help you out next weekend if you like
Well I start it up on 100% choke so it hangs at like 4k while I put my gear on, then lower choke to around 50% so it hangs at like 2kish, then after a few minutes of riding I put choke completely off and it idles just fine.

and dude I would buy you a nice ass lunch if you can fix this problem for me lol. I'm gonna try running some seafoam through the gas tank and see if that helps anything
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September 5, 2011, 06:41 AM

Yeah sounds like the beginning of a tight exhaust valve...then it will get worse until it doesn't want to idle. If you use the choke for 2 min or so and turn it off is it able to idle very slowly at least?

How many miles on it? Can't mess around with doing valve adjustments & checking oil on these bikes.


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September 5, 2011, 09:15 AM

Quote:
Originally Posted by BlkOnBlk600r View Post
Yeah sounds like the beginning of a tight exhaust valve...then it will get worse until it doesn't want to idle. If you use the choke for 2 min or so and turn it off is it able to idle very slowly at least?

How many miles on it? Can't mess around with doing valve adjustments & checking oil on these bikes.
YEah after 2 minutes or so of choke if I turn it all the way off then it idles low like around 900rpms but I think that's because the engine simply has to warm up.

I bought it at 7k miles, i'm the 3rd owner, no idea what maintenance 1st or 2nd owner did (my fault for not inquiring past "yeah i took care of the bike")

It's now at 8400. I think it's the float thingy you mentioned because one morning when it was having the problems I saw that the petcock was on prime (no idea how it got there, i keep it on ON) but the problem continued

Last edited by CrookedKing; September 5, 2011 at 09:22 AM..
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September 5, 2011, 10:11 AM

1st thing is to check the valves, definitely due for adjustment. You know it's the float if you use the choke & the engine doesn't spin up to 4k like yours is doing fine or you notice fuel coming out the airbox drain.


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September 5, 2011, 10:28 AM

i took off my tank and i'm trying to put it back on but i can't get the damn fuel hoses in all the way! so i left them in partially (i spent an hour trying to get them to fit in) and I turned the main petcock under the tank to ON and now there's fuel dripping

this is the last time i work on my bike! i'm frustrated!!!

on topic, do you have the tools for valve adjustment? because i sure don't :X also where are you located?

Last edited by CrookedKing; September 5, 2011 at 03:54 PM..
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September 5, 2011, 06:44 PM

no need to remove the tank unless you are going to remove carbs

PM sent.


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September 9, 2011, 06:00 PM

huge thanks to BlkOnBlk600r for helping me fix it! it was a tight valve..
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September 12, 2011, 07:32 AM



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