Pages: [1]   Go Down
Print

Topic: 98EV cutting out  (Read 148 times)

0 Members and 1 Guest are viewing this topic.
Strom
*

Reputation 0
Offline Offline

Motorcycles: 1998 California EV, 1984 V35, 1979 XS11
GPS: Slovenia, yurp
Miles Typed: 32

My Photo Gallery



WWW

Ignore
« on: January 16, 2012, 06:21:53 AM »

Anyway, a new problem arose....

When I start my 98EV (P8 ECU), it will only run on one cyl until I give it some gas a few times, then it idles fine.
No problems detected while riding, but was not paying attention to the next symptom.

While I hold the engine at about 4-5k rpm, one cyl seems to crap out every second or two for about 0.5 - 1 second.

It is not the ignition - checked with a strobe light, the spark is there on both cyls.

Since its only a 1 cyl problem, I guess we can rule out all the sensors, so that would leave the injectors?

Any history of problems on those? The bike has 82kkm at the moment. Spark plugs are new, the rest of the consumables newish, fuel pump was replaced at about 40kkm, fuel filter about 15kkm back, but the fuel pump whirring is nice and constant (not something you would expect from a clogged filter - I know how that sounds like).

Ideas anyone (Pete?)  Headscratch

Logged
Members, please login to hide this ad.

Guests, please register to hide this ad.
« on: January 16, 2012, 06:21:53 AM »

 Logged
Pete Roper
*

Reputation 32
Offline Offline

Motorcycles: Lots of Guzzis, Aprilia Mana.
Miles Typed: 302

My Photo Gallery




Ignore
« Reply #1 on: January 16, 2012, 11:41:40 AM »

Is this under load or stationry? If the fuel pump is running constantly I'd suggest an idle trim problem might be the culprit. Is the TPS set accurately? Are the TB's ballanced?

Pete
Logged
Strom
*

Reputation 0
Offline Offline

Motorcycles: 1998 California EV, 1984 V35, 1979 XS11
GPS: Slovenia, yurp
Miles Typed: 32

My Photo Gallery



WWW

Ignore
« Reply #2 on: January 16, 2012, 01:00:35 PM »

Stationary.

TPS is set 4 degrees richer for the past few years because we replaced the H pipe with the straight-through - worked without problems so far.

TBs are balanced... or at least my vacuum gauges say they are.
Logged
Pages: [1]   Go Up
Print
Jump to:  



ST.N

Copyright © 2001 - 2012 Sport-Touring.Net.
All rights reserved.

SimplePortal 2.3.1 © 2008-2009, SimplePortal