VTR dying

NY4600 · Post by **NY4600** » Sat Jul 16, 2016 11:23 am

Went for a test ride after two years of storage 'cause of a crash in 2014. Installed new spark plugs, oil and filter and it fires, but when it pass 2000rpm the engine stops. I can force it further sometimes, but the critical point is around 2000rpm. When I drive it cheats before it gets speed at around 4000. Fuel filter? Carbs? Any suggestions?

tony.mon · Post by **tony.mon** » Sat Jul 16, 2016 11:44 am

Sounds like the main jets or pilot jets are blocked.
Take the carbs apart and clean thoroughly, and see if it improves.

NY4600 · Post by **NY4600** » Sat Jul 16, 2016 12:14 pm

tony.mon wrote:Sounds like the main jets or pilot jets ate blocked.
Take the carbs apart and clean thoroughly, and see if it improves.

Thanx a lot

NY4600 · Post by **NY4600** » Sat Jul 16, 2016 12:50 pm

tony.mon wrote:Sounds like the main jets or pilot jets are blocked.
Take the carbs apart and clean thoroughly, and see if it improves.

What about the petcock? Is it on or off or should it be adjusted to a special setting?

VTRDark · Post by **VTRDark** » Sat Jul 16, 2016 1:09 pm

After sitting around for two years the fuel system will be a bit gummed up. Carbs off, float bowls off remove the jets and give them a good blast through and all orifices you can get to including the ones inside the carb throat walls. If you feeling adventurous then you can also remove the fuel mixture screws (count the turns out) along with the little spring, washer and rubber O ring and blast through there also. You will probably find the rubber O ring will stick inside the hole and will require picking out.

http://www.vtr1000.org/phpBB3/viewtopic ... al#p223894

http://www.vtr1000.org/phpBB3/viewtopic.php?f=9&t=25177

As for the petcock there is nothing to adjust there but make sure it is switched on and the vaccum pipe is in the right place on the side towards the rear not the bottom.

NY4600 · Post by **NY4600** » Sat Jul 16, 2016 1:16 pm

cybercarl wrote:After sitting around for two years the fuel system will be a bit gummed up. Carbs off, float bowls off remove the jets and give them a good blast through and all orifices you can get to including the ones inside the carb throat walls. If you feeling adventurous then you can also remove the fuel mixture screws (count the turns out) along with the little spring, washer and rubber O ring and blast through there also. You will probably find the rubber O ring will stick inside the hole and will require picking out.

http://www.vtr1000.org/phpBB3/viewtopic ... al#p223894

http://www.vtr1000.org/phpBB3/viewtopic.php?f=9&t=25177

As for the petcock there is nothing to adjust there but make sure it is switched on and the vaccum pipe is in the right place on the side towards the rear not the bottom.

I think I love you Carl

Thanx for the thorough answer. Time to work

NY4600 · Post by **NY4600** » Sat Jul 16, 2016 10:24 pm

Now the cheating is gone, but what's up with the poof and blow in exhaust?

VTRDark · Post by **VTRDark** » Sun Jul 17, 2016 5:58 am

A cheating poof is a common trait

By poof I'm guessing your getting a carb fart right. A bit of blow back through the carb back up into the airbox. Exhaust blows will be down to not sealing correctly.

NY4600 · Post by **NY4600** » Sun Jul 17, 2016 6:40 am

cybercarl wrote:A cheating poof is a common trait

By poof I'm guessing your getting a carb fart right. A bit of blow back through the carb back up into the airbox. Exhaust blows will be down to not sealing correctly.

Haha

My English is not that good, sorry, but it backfires in the exhaust, espesially when I go to a lower gear. Heard about one changing to stick coil.

VTR Phoenix · Post by **VTR Phoenix** » Sun Jul 17, 2016 7:25 am

If its popping and banging on deceleration then check all exhaust joins. There will be an air leak somewhere, you might also here ticking when on idle which could also suggest this.

NY4600 · Post by **NY4600** » Sun Jul 17, 2016 10:37 am

VTR Phoenix wrote:If its popping and banging on deceleration then check all exhaust joins. There will be an air leak somewhere, you might also here ticking when on idle which could also suggest this.

Okey, I've sandblasted the whole exhaust so maybe I should try with som sealant in the connections then...

Wicky · Post by **Wicky** » Sun Jul 17, 2016 11:04 am

Have you used new copper crush gaskets on the mainifolds and replaced the graphite seals between the header and link pipes?

http://www.bike-parts-honda.com/pieces- ... STORM.html

Recommend Mikalor W4 fully stainless steel clamps to hold it all together.

NY4600 · Post by **NY4600** » Tue Jul 19, 2016 1:44 pm

Wicky wrote:Have you used new copper crush gaskets on the mainifolds and replaced the graphite seals between the header and link pipes?

http://www.bike-parts-honda.com/pieces- ... STORM.html

Recommend Mikalor W4 fully stainless steel clamps to hold it all together.

Thanx! No, I have not put in new gaskets and seals, so hopefully that will help

Now I'm deaf

NY4600 · Post by **NY4600** » Tue Jul 19, 2016 4:29 pm

Hmmm... I found one of the plastic nuts for the choke cable attached to the carb is nissing the threads and was fixed with tape and steel thread. I have ordered new ones, after a quick search on the forum. But If it sucks air through here, what happens? Guess it can't be 100% tight with that redneck-fix

Wicky · Post by **Wicky** » Tue Jul 19, 2016 4:51 pm

NY4600 wrote:Hmmm... I found one of the plastic nuts for the choke cable attached to the carb is nissing the threads and was fixed with tape and steel thread. I have ordered new ones, after a quick search on the forum. But If it sucks air through here, what happens? Guess it can't be 100% tight with that redneck-fix

It'd run like rubbish

http://www.ebay.co.uk/itm/110823076103? ... EBIDX%3AIT

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