Triumphrat

jdub3 · 06-19-2006

depending who's reading this, you may be aware i recently had my bike painted. i disassembled and reassembled tank and what not myself. was VERY careful in doing so. kept everything covered up to prevent dust/dirt/etc entry to any tubes. tank covered well with paint. new rubber washers and o-ring used on replacement. yada yada.

started up fine when put together first time. couple rides later was hesitant to fire up. seemed to fire up with a bit of throttle. this problem went away after that day though it still took a few second to actually catch and start (slower than should be). this weekend had some trouble starting up again. had to give it some gas again to get her going.

not sure what i could have jacked up. seems like some problem with the gas flowing proper since giving it some causes her to start. thoughts?

cheapbastard · 06-19-2006

jdub, what have you done?!? :???: Hope it's nothing serious, make sure and check you don't have any hoses pinched at the back of the tank. Hope ya get it sorted. :kck:

jdub3 · 06-19-2006

i'll double check the hoses. don't think so though. i checked when reassembling. could be something unrelated. who knows.

Martin_R · 06-19-2006

Quote:

On 2006-06-19 12:08, jdub3 wrote:
i'll double check the hoses. don't think so though. i checked when reassembling. could be something unrelated. who knows.

Have you tried blowing air through the two breather lines coming from the tank to check they are clear?

Do you still have the tipover valve on the other breather? Is it mounted exactly vertical? Are you sure you mounted the breather lines the right way around and did not accidentally reverse them or mount the one with the valve upside down? You can make diagnosing easy by temporarily taking the lines off and try if it makes any difference to the starting.

Other than a problem with the lines or some foreign stuff (paint?) clogging the fuel filter is all I can think of, if you did not touch anything else. Or some rubber grommet around the breather holes around the filler opening mounted a bit funny and as a result it is blocking the hole.

jdub3 · 06-19-2006

i can try blowing air through the breather lines...not sure how anything would get in there....as i put a plastic bag over the tips and taped it off while the tank got painted, but can't hurt to check. haha, unless something fell in that i used to protect it...not likely.

not sure which tipover valve u mean? where is this located? i can check the service manual tonight (if it shows this). will have to take closer look. the actual two nipples that i removed from tank are identical are they not? either way, i had labeled them so they should have went back on same. breather hoses also labeled but certainly worth a double check. i'll try removing both. problem is intermittent, other than a slower start so not sure if this will tell all unless it fires up immediately with noticeable difference.

should not be any paint in the tank and it looked clean. this was thoroughly taped off. some small amount of dust in there maybe from pre-taping, maybe, not sure it would result in this behavior...i mean...the filter should catch any minor debris right? i could pull the entire cluster out but this would be last resort as quite a pain in arse.

"Or some rubber grommet around the breather holes around the filler opening mounted a bit funny and as a result it is blocking the hole"

u mean the little black rubber washers around the breather nipples attached to tank (there are 2)? i put new washers on. not sure how these would end up covering anything. i could have overtightened (oops no torque wrench though i have one now) but i'm not sure if they could even expand so much as to cause a problem?

thx for tips. will check all this. let me know if ya have more details per the questions above so i can ensure i am checkin all the right things.

jeff

Quote:

Have you tried blowing air through the two breather lines coming from the tank to check they are clear?

Do you still have the tipover valve on the other breather? Is it mounted exactly vertical? Are you sure you mounted the breather lines the right way around and did not accidentally reverse them or mount the one with the valve upside down? You can make diagnosing easy by temporarily taking the lines off and try if it makes any difference to the starting.

Other than a problem with the lines or some foreign stuff (paint?) clogging the fuel filter is all I can think of, if you did not touch anything else. Or some rubber grommet around the breather holes around the filler opening mounted a bit funny and as a result it is blocking the hole.

Martin_R · 06-19-2006

Quote:

On 2006-06-19 13:16, jdub3 wrote:
not sure which tipover valve u mean? where is this located?

It is the plastic bulge on the other of the two tubes. The valve is hanging around the great bundle o'hoses in front of the front sprocket.

Quote:

the actual two nipples that i removed from tank are identical are they not? either way, i had labeled them so they should have went back on same.

Don't know for sure, but my guess would be yes.

Quote:

breather hoses also labeled but certainly worth a double check.

These are different. The other hose has the valve in the middle of the hose and the other does not. They should go back as they were. The hoses also kink very easily while mounting the tank so be careful where you route them.

Quote:

i'll try removing both. problem is intermittent, other than a slower start so not sure if this will tell all unless it fires up immediately with noticeable difference.

Right when you are having the problem you can try shutting down the bike and opening the gas cap. If there is resistance and a distinct woosh sound as air rushes in, then you have a vacuum in your tank and a problem with the breather lines. Eg. no replacement air getting to the tank as it should.

Which will cause running & starting problems especially when hot as the vacuum in the tank increases the longer you have ridden.

You don't really want the vacuum to get too bad as the tank is plastic and some have even had their tanks replaced on warranty when the vacuum has sucked the tank sides in and the paint has cracked.

[ This message was edited by: Martin_R on 2006-06-19 13:36 ]

jdub3 · 06-19-2006

yeah, figured u meant other end of tubes which i never really paid much attention to. i didn't touch the valve. didn't pull the tubes out. didn't move them at all other than disconnect. but, the differences in the tubes should easily help me double check which one is which and ensure they are attached properly. will double check kink.

vacuum+cracked paint. well lets hope i dont' have that problem with my new paint! it was a hot day when this occured the other day, thus making what u have stated interesting. have not noticed any vacuum like effects when opening the gas cap thus far. first time it happened was after first longer ride (not too long though). i have been on several much much longer rides and it has fired up with zero problems.

again, thx for tips.

jeff