Having big time starting problems

[Goober01]

Can any one help me with how to test the sensors on this eng and why there are 2 oil presure switchs and 2 presure sensors on the fuel rail or where I can send the ecu to have it tested. Always runs good on after it warms up. But starts very hard and back fires like a Canon.

 

[theCATman]

Start here, no pun intended.

https://ty4stroke.com/threads/throttle-freeplay.156623/

 

[super1c]

Flashes up to date?

 

[Goober01]

I had a reflashed in 2017

 

[super1c]

There was a new one in 19. Mixed reviews as usual but sounds like you got nothing to lose.

 

[Kkurz]

I had terrible backfires with the old flash and the new one seems to have fixed it. It's free, and I can't see any reason not to do it.

 

[Janne339]

My wife's rtx suddenly had big hot start problems. Missfire and farting. Last ride after adjust throttle freeplay its starts perfect. Weird...

Something in electrics is not working?

What about the "micro switch" in handlebar harness? Control the micro switch T.O.R.S? What happens If micro switch is open when you cranking and try to start? Nr 14 in picture

 

[cannondale27]

If switch and tps sensor are not in sync it triggers the ecu into safety mode. It’s good thing. Glad you got it working.

 

[Goober01]

Every time I think I ha e it fixed it starts acting up agin, yesterday it backfired and took the starter out , is there any body out there who knows any expert that would work on this problem child

 

[murdered141]

Every time I think I ha e it fixed it starts acting up agin, yesterday it backfired and took the starter out , is there any body out there who knows any expert that would work on this problem child

At this point if your out of warranty I'd would just light a match

 

[Janne339]

Every time I think I ha e it fixed it starts acting up agin, yesterday it backfired and took the starter out , is there any body out there who knows any expert that would work on this problem child

 

[Janne339]

If switch and tps sensor are not in sync it triggers the ecu into safety mode. It’s good thing. Glad you got it working.

I cross my fingers... We gonna take a longer trip over the weekend.


Later I gonna open it and take a look at the micro switch.

 

[Janne339]

200 km today with no starting problems. My wife's RTX runs perfect all day!

 

[YukonMP]

I like the looks of your country. When everyone here is checking out to Mexico or Hawaii I'm thinking sledding tours in Scandinavia. Too bad we aren't in opposite hemispheres so I could escape summer.

 

[Al Bundy]

View attachment 147389 View attachment 147390 200 km today with no starting problems. My wife's RTX runs perfect all day!