Probably coils

Hello and welcome. Great bike you have there. How many miles on her? How"s it look? What color? What are they going for these days?

Sounds like you took the right route with the tune up, nothing wrong with the K&N. Been running one over a decade now, no problem. You probably still have the stock coils. They are probably Gills from England. Cause of most "stumbling " on acceleration. Replace these with Nology ($70 each) or PVL coils from Triumph (much more each).

j98sprint

 

she is a youngin just under 10k and i got her for $2000. The bike is a dark blue and looks brand new.

What model nology and what ohm 6?

 

Gill, PVL... I don't think it makes much difference who made the coils, people have seen both kinds fail pretty frequently. I forget the specs, but your symptoms sure do sound like a coil failing.

The Nology coils are the same PVL part Triumph uses. I think the model number you want is 152 001 060, but call to be sure. 0.6Ω is what you want.

Cheers,
-Kit

 

Thanks for the words of wisdom

 

 

Good looking bike. Mine is red. BTW, Kit's Nology part number was close. The 0.6 ohm coil for Triumph ends in a "T" or 152 001 060T. This designates a minor difference in the outlet terminal to fit the Triumph wires.

http://www.nology.com/profiremotor.html

 

Coil brands do make a difference. PVL make the Nology coils, the proven winners. The Gill coils are junk.

By the way, nice low mileage Sprint. And great deal at $2000, well done.

j98sprint

 

The coils I had problems with were PVLs. I suspect the real problem is that they get cooked by heat from the motor due to their positioning, but I haven't tested that scientifically. At any rate, the Gills don't seem to be available anymore, and a new set of PVLs should cure the problem for a decent amount of time.

Cheers,
-Kit

 

1998 sprint exec 900 idle problems - CORECTED!!!

thanks for the awesome info. The bike is running 100% now i just need to stay away from the cops.

 

Do tell KT. What did you do to her? And what do the cops have to do with it?

j98sprint

 

I went through and replaced all three coils. Before hand there was a lack of power on the low end and rough idling. Sure enough after putting three new nology coils in she is an entirely different animal. It is practically a rocket taking off. Now mind you i just got rid of my 500 not too long ago, which was fast in its own right. But this, this bike is awesome now. So much so that in the first week with the new coils i had an encounter on three separate occasions with the cops. Two tickets, one point and one warning. The "not really a problem" problem is that it is so smooth winding through the gears that by the time i hit forth i am already past the speed limit. And that is what i meant by needing :motorbike2 to stay away from the cops.

 

I use and endorse Adaptiv products.

Cheers,
-Kit